/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/test-easy10.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 13:20:36,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 13:20:36,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 13:20:36,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 13:20:36,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 13:20:36,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 13:20:36,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 13:20:36,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 13:20:36,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 13:20:36,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 13:20:36,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 13:20:36,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 13:20:36,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 13:20:36,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 13:20:36,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 13:20:36,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 13:20:36,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 13:20:36,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 13:20:36,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 13:20:36,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 13:20:36,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 13:20:36,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 13:20:36,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 13:20:36,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 13:20:36,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 13:20:36,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 13:20:36,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 13:20:36,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 13:20:36,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 13:20:36,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 13:20:36,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 13:20:36,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 13:20:36,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 13:20:36,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 13:20:36,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 13:20:36,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 13:20:36,864 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 13:20:36,875 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 13:20:36,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 13:20:36,876 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 13:20:36,876 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 13:20:36,876 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 13:20:36,876 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 13:20:36,877 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 13:20:36,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 13:20:36,877 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 13:20:36,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 13:20:36,877 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 13:20:36,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 13:20:36,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 13:20:36,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 13:20:36,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 13:20:36,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 13:20:36,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 13:20:36,878 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 13:20:36,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 13:20:36,878 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 13:20:36,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 13:20:36,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 13:20:36,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 13:20:36,879 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 13:20:36,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 13:20:36,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 13:20:36,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 13:20:36,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 13:20:36,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 13:20:36,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 13:20:36,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 13:20:36,883 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 13:20:36,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 13:20:36,883 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 13:20:36,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 13:20:37,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 13:20:37,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 13:20:37,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 13:20:37,056 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 13:20:37,062 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 13:20:37,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy10.wvr.c [2022-01-18 13:20:37,120 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70116acc8/84a88296b28c48728eb2824b329e12e8/FLAG79b8dc177 [2022-01-18 13:20:37,447 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 13:20:37,447 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy10.wvr.c [2022-01-18 13:20:37,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70116acc8/84a88296b28c48728eb2824b329e12e8/FLAG79b8dc177 [2022-01-18 13:20:37,886 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70116acc8/84a88296b28c48728eb2824b329e12e8 [2022-01-18 13:20:37,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 13:20:37,888 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 13:20:37,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 13:20:37,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 13:20:37,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 13:20:37,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:20:37" (1/1) ... [2022-01-18 13:20:37,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f6a6a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:37, skipping insertion in model container [2022-01-18 13:20:37,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:20:37" (1/1) ... [2022-01-18 13:20:37,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 13:20:37,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 13:20:38,039 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy10.wvr.c[3907,3920] [2022-01-18 13:20:38,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 13:20:38,053 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 13:20:38,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy10.wvr.c[3907,3920] [2022-01-18 13:20:38,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 13:20:38,088 INFO L208 MainTranslator]: Completed translation [2022-01-18 13:20:38,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:38 WrapperNode [2022-01-18 13:20:38,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 13:20:38,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 13:20:38,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 13:20:38,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 13:20:38,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:38" (1/1) ... [2022-01-18 13:20:38,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:38" (1/1) ... [2022-01-18 13:20:38,114 INFO L137 Inliner]: procedures = 23, calls = 84, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 188 [2022-01-18 13:20:38,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 13:20:38,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 13:20:38,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 13:20:38,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 13:20:38,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:38" (1/1) ... [2022-01-18 13:20:38,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:38" (1/1) ... [2022-01-18 13:20:38,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:38" (1/1) ... [2022-01-18 13:20:38,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:38" (1/1) ... [2022-01-18 13:20:38,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:38" (1/1) ... [2022-01-18 13:20:38,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:38" (1/1) ... [2022-01-18 13:20:38,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:38" (1/1) ... [2022-01-18 13:20:38,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 13:20:38,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 13:20:38,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 13:20:38,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 13:20:38,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:38" (1/1) ... [2022-01-18 13:20:38,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 13:20:38,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 13:20:38,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 13:20:38,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 13:20:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 13:20:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 13:20:38,190 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 13:20:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 13:20:38,190 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 13:20:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 13:20:38,190 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 13:20:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 13:20:38,190 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 13:20:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 13:20:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 13:20:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 13:20:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 13:20:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 13:20:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 13:20:38,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 13:20:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 13:20:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 13:20:38,192 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 13:20:38,257 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 13:20:38,258 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 13:20:38,401 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 13:20:38,447 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 13:20:38,447 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 13:20:38,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:20:38 BoogieIcfgContainer [2022-01-18 13:20:38,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 13:20:38,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 13:20:38,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 13:20:38,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 13:20:38,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 01:20:37" (1/3) ... [2022-01-18 13:20:38,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d52ee60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:20:38, skipping insertion in model container [2022-01-18 13:20:38,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:38" (2/3) ... [2022-01-18 13:20:38,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d52ee60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:20:38, skipping insertion in model container [2022-01-18 13:20:38,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:20:38" (3/3) ... [2022-01-18 13:20:38,454 INFO L111 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2022-01-18 13:20:38,459 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 13:20:38,459 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 13:20:38,459 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 13:20:38,459 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 13:20:38,499 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,500 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,500 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,500 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,501 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,501 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,501 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,501 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,502 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,502 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,502 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,503 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,503 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,503 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,504 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,504 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,504 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,505 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,505 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,505 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,506 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,506 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,506 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,506 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,507 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,507 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,507 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,507 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,508 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,508 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,508 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,509 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,511 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,521 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,522 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,522 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,522 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,522 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,523 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,524 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,524 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,524 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,524 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:20:38,529 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 13:20:38,557 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 13:20:38,562 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 13:20:38,562 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 13:20:38,571 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 149 places, 138 transitions, 308 flow [2022-01-18 13:20:39,613 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 33672 states, 33671 states have (on average 4.136764574856701) internal successors, (139289), 33671 states have internal predecessors, (139289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:20:39,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 33672 states, 33671 states have (on average 4.136764574856701) internal successors, (139289), 33671 states have internal predecessors, (139289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:20:39,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:20:39,992 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:20:39,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:20:39,994 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:20:40,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:20:40,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1535193811, now seen corresponding path program 1 times [2022-01-18 13:20:40,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:20:40,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839645896] [2022-01-18 13:20:40,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:20:40,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:20:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:20:40,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:20:40,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:20:40,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839645896] [2022-01-18 13:20:40,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839645896] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:20:40,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:20:40,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 13:20:40,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877619793] [2022-01-18 13:20:40,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:20:40,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 13:20:40,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:20:40,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 13:20:40,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 13:20:40,503 INFO L87 Difference]: Start difference. First operand has 33672 states, 33671 states have (on average 4.136764574856701) internal successors, (139289), 33671 states have internal predecessors, (139289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:20:40,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:20:40,949 INFO L93 Difference]: Finished difference Result 28362 states and 115572 transitions. [2022-01-18 13:20:40,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 13:20:40,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:20:40,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:20:41,297 INFO L225 Difference]: With dead ends: 28362 [2022-01-18 13:20:41,299 INFO L226 Difference]: Without dead ends: 28360 [2022-01-18 13:20:41,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 13:20:41,304 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 16 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 13:20:41,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 172 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 13:20:41,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28360 states. [2022-01-18 13:20:42,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28360 to 28360. [2022-01-18 13:20:42,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28360 states, 28359 states have (on average 4.075249479882929) internal successors, (115570), 28359 states have internal predecessors, (115570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:20:42,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28360 states to 28360 states and 115570 transitions. [2022-01-18 13:20:42,498 INFO L78 Accepts]: Start accepts. Automaton has 28360 states and 115570 transitions. Word has length 117 [2022-01-18 13:20:42,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:20:42,500 INFO L470 AbstractCegarLoop]: Abstraction has 28360 states and 115570 transitions. [2022-01-18 13:20:42,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:20:42,501 INFO L276 IsEmpty]: Start isEmpty. Operand 28360 states and 115570 transitions. [2022-01-18 13:20:42,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:20:42,771 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:20:42,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:20:42,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 13:20:42,773 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:20:42,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:20:42,775 INFO L85 PathProgramCache]: Analyzing trace with hash -2134050213, now seen corresponding path program 2 times [2022-01-18 13:20:42,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:20:42,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873651590] [2022-01-18 13:20:42,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:20:42,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:20:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:20:42,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:20:42,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:20:42,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873651590] [2022-01-18 13:20:42,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873651590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:20:42,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:20:42,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 13:20:42,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467027538] [2022-01-18 13:20:42,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:20:42,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 13:20:42,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:20:42,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 13:20:42,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 13:20:42,988 INFO L87 Difference]: Start difference. First operand 28360 states and 115570 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:20:43,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:20:43,237 INFO L93 Difference]: Finished difference Result 23500 states and 94420 transitions. [2022-01-18 13:20:43,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 13:20:43,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:20:43,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:20:43,497 INFO L225 Difference]: With dead ends: 23500 [2022-01-18 13:20:43,498 INFO L226 Difference]: Without dead ends: 23500 [2022-01-18 13:20:43,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 13:20:43,502 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 33 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 13:20:43,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 178 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 13:20:43,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23500 states. [2022-01-18 13:20:44,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23500 to 23500. [2022-01-18 13:20:44,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23500 states, 23499 states have (on average 4.0180433209923825) internal successors, (94420), 23499 states have internal predecessors, (94420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:20:44,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23500 states to 23500 states and 94420 transitions. [2022-01-18 13:20:44,187 INFO L78 Accepts]: Start accepts. Automaton has 23500 states and 94420 transitions. Word has length 117 [2022-01-18 13:20:44,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:20:44,189 INFO L470 AbstractCegarLoop]: Abstraction has 23500 states and 94420 transitions. [2022-01-18 13:20:44,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:20:44,190 INFO L276 IsEmpty]: Start isEmpty. Operand 23500 states and 94420 transitions. [2022-01-18 13:20:44,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:20:44,390 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:20:44,390 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:20:44,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 13:20:44,391 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:20:44,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:20:44,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1070905129, now seen corresponding path program 3 times [2022-01-18 13:20:44,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:20:44,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332688200] [2022-01-18 13:20:44,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:20:44,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:20:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:20:45,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:20:45,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:20:45,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332688200] [2022-01-18 13:20:45,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332688200] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:20:45,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:20:45,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:20:45,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387235329] [2022-01-18 13:20:45,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:20:45,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:20:45,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:20:45,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:20:45,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:20:45,542 INFO L87 Difference]: Start difference. First operand 23500 states and 94420 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:20:47,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:20:47,457 INFO L93 Difference]: Finished difference Result 55333 states and 218353 transitions. [2022-01-18 13:20:47,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:20:47,457 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:20:47,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:20:47,724 INFO L225 Difference]: With dead ends: 55333 [2022-01-18 13:20:47,724 INFO L226 Difference]: Without dead ends: 54346 [2022-01-18 13:20:47,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=223, Invalid=479, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:20:47,730 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 592 mSDsluCounter, 2992 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 2837 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 13:20:47,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [592 Valid, 2837 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 13:20:47,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54346 states. [2022-01-18 13:20:48,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54346 to 24472. [2022-01-18 13:20:48,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24472 states, 24471 states have (on average 4.01017530955008) internal successors, (98133), 24471 states have internal predecessors, (98133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:20:49,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24472 states to 24472 states and 98133 transitions. [2022-01-18 13:20:49,007 INFO L78 Accepts]: Start accepts. Automaton has 24472 states and 98133 transitions. Word has length 117 [2022-01-18 13:20:49,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:20:49,008 INFO L470 AbstractCegarLoop]: Abstraction has 24472 states and 98133 transitions. [2022-01-18 13:20:49,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:20:49,009 INFO L276 IsEmpty]: Start isEmpty. Operand 24472 states and 98133 transitions. [2022-01-18 13:20:49,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:20:49,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:20:49,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:20:49,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 13:20:49,062 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:20:49,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:20:49,063 INFO L85 PathProgramCache]: Analyzing trace with hash 2042458025, now seen corresponding path program 4 times [2022-01-18 13:20:49,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:20:49,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034182992] [2022-01-18 13:20:49,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:20:49,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:20:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:20:49,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:20:49,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:20:49,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034182992] [2022-01-18 13:20:49,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034182992] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:20:49,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:20:49,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:20:49,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094825620] [2022-01-18 13:20:49,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:20:49,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:20:49,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:20:49,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:20:49,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:20:49,885 INFO L87 Difference]: Start difference. First operand 24472 states and 98133 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:20:51,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:20:51,670 INFO L93 Difference]: Finished difference Result 55522 states and 218749 transitions. [2022-01-18 13:20:51,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:20:51,686 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:20:51,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:20:51,880 INFO L225 Difference]: With dead ends: 55522 [2022-01-18 13:20:51,881 INFO L226 Difference]: Without dead ends: 54940 [2022-01-18 13:20:51,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=479, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:20:51,881 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 744 mSDsluCounter, 2902 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 2765 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:20:51,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [744 Valid, 2765 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:20:51,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54940 states. [2022-01-18 13:20:52,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54940 to 24508. [2022-01-18 13:20:52,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24508 states, 24507 states have (on average 4.00881380829967) internal successors, (98244), 24507 states have internal predecessors, (98244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:20:53,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24508 states to 24508 states and 98244 transitions. [2022-01-18 13:20:53,001 INFO L78 Accepts]: Start accepts. Automaton has 24508 states and 98244 transitions. Word has length 117 [2022-01-18 13:20:53,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:20:53,001 INFO L470 AbstractCegarLoop]: Abstraction has 24508 states and 98244 transitions. [2022-01-18 13:20:53,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:20:53,002 INFO L276 IsEmpty]: Start isEmpty. Operand 24508 states and 98244 transitions. [2022-01-18 13:20:53,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:20:53,055 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:20:53,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:20:53,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 13:20:53,056 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:20:53,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:20:53,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1762640513, now seen corresponding path program 5 times [2022-01-18 13:20:53,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:20:53,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327409122] [2022-01-18 13:20:53,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:20:53,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:20:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:20:53,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:20:53,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:20:53,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327409122] [2022-01-18 13:20:53,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327409122] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:20:53,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:20:53,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:20:53,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942457007] [2022-01-18 13:20:53,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:20:53,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:20:53,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:20:53,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:20:53,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:20:53,963 INFO L87 Difference]: Start difference. First operand 24508 states and 98244 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:20:55,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:20:55,695 INFO L93 Difference]: Finished difference Result 54937 states and 216781 transitions. [2022-01-18 13:20:55,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:20:55,695 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:20:55,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:20:55,889 INFO L225 Difference]: With dead ends: 54937 [2022-01-18 13:20:55,889 INFO L226 Difference]: Without dead ends: 54238 [2022-01-18 13:20:55,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=479, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:20:55,890 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 664 mSDsluCounter, 2690 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 2586 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:20:55,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [664 Valid, 2586 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1131 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:20:55,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54238 states. [2022-01-18 13:20:56,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54238 to 24364. [2022-01-18 13:20:56,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.009851003570989) internal successors, (97692), 24363 states have internal predecessors, (97692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:20:56,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97692 transitions. [2022-01-18 13:20:56,763 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97692 transitions. Word has length 117 [2022-01-18 13:20:56,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:20:56,763 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97692 transitions. [2022-01-18 13:20:56,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:20:56,763 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97692 transitions. [2022-01-18 13:20:56,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:20:56,812 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:20:56,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:20:56,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 13:20:56,813 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:20:56,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:20:56,813 INFO L85 PathProgramCache]: Analyzing trace with hash -347353081, now seen corresponding path program 6 times [2022-01-18 13:20:56,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:20:56,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194021299] [2022-01-18 13:20:56,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:20:56,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:20:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:20:57,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:20:57,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:20:57,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194021299] [2022-01-18 13:20:57,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194021299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:20:57,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:20:57,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:20:57,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489215656] [2022-01-18 13:20:57,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:20:57,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:20:57,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:20:57,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:20:57,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:20:57,484 INFO L87 Difference]: Start difference. First operand 24364 states and 97692 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:20:59,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:20:59,352 INFO L93 Difference]: Finished difference Result 55441 states and 218614 transitions. [2022-01-18 13:20:59,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:20:59,352 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:20:59,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:20:59,545 INFO L225 Difference]: With dead ends: 55441 [2022-01-18 13:20:59,545 INFO L226 Difference]: Without dead ends: 54859 [2022-01-18 13:20:59,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=267, Invalid=545, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:20:59,546 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 652 mSDsluCounter, 3057 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 2921 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:20:59,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [652 Valid, 2921 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:20:59,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54859 states. [2022-01-18 13:21:00,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54859 to 24472. [2022-01-18 13:21:00,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24472 states, 24471 states have (on average 4.008704180458502) internal successors, (98097), 24471 states have internal predecessors, (98097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:00,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24472 states to 24472 states and 98097 transitions. [2022-01-18 13:21:00,506 INFO L78 Accepts]: Start accepts. Automaton has 24472 states and 98097 transitions. Word has length 117 [2022-01-18 13:21:00,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:21:00,506 INFO L470 AbstractCegarLoop]: Abstraction has 24472 states and 98097 transitions. [2022-01-18 13:21:00,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:00,506 INFO L276 IsEmpty]: Start isEmpty. Operand 24472 states and 98097 transitions. [2022-01-18 13:21:00,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:21:00,553 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:21:00,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:21:00,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 13:21:00,554 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:21:00,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:21:00,554 INFO L85 PathProgramCache]: Analyzing trace with hash 142515677, now seen corresponding path program 7 times [2022-01-18 13:21:00,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:21:00,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368722441] [2022-01-18 13:21:00,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:21:00,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:21:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:21:01,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:21:01,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:21:01,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368722441] [2022-01-18 13:21:01,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368722441] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:21:01,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:21:01,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:21:01,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156167347] [2022-01-18 13:21:01,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:21:01,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:21:01,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:21:01,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:21:01,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:21:01,436 INFO L87 Difference]: Start difference. First operand 24472 states and 98097 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:02,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:21:02,960 INFO L93 Difference]: Finished difference Result 55414 states and 218488 transitions. [2022-01-18 13:21:02,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:21:02,961 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:21:02,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:21:03,138 INFO L225 Difference]: With dead ends: 55414 [2022-01-18 13:21:03,138 INFO L226 Difference]: Without dead ends: 54823 [2022-01-18 13:21:03,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=247, Invalid=509, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:21:03,139 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 616 mSDsluCounter, 3060 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:21:03,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [616 Valid, 2916 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:21:03,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54823 states. [2022-01-18 13:21:03,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54823 to 24436. [2022-01-18 13:21:03,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24436 states, 24435 states have (on average 4.008594229588705) internal successors, (97950), 24435 states have internal predecessors, (97950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:04,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24436 states to 24436 states and 97950 transitions. [2022-01-18 13:21:04,052 INFO L78 Accepts]: Start accepts. Automaton has 24436 states and 97950 transitions. Word has length 117 [2022-01-18 13:21:04,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:21:04,052 INFO L470 AbstractCegarLoop]: Abstraction has 24436 states and 97950 transitions. [2022-01-18 13:21:04,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:04,053 INFO L276 IsEmpty]: Start isEmpty. Operand 24436 states and 97950 transitions. [2022-01-18 13:21:04,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:21:04,101 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:21:04,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:21:04,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 13:21:04,102 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:21:04,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:21:04,103 INFO L85 PathProgramCache]: Analyzing trace with hash -769438449, now seen corresponding path program 8 times [2022-01-18 13:21:04,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:21:04,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333270743] [2022-01-18 13:21:04,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:21:04,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:21:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:21:05,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:21:05,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:21:05,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333270743] [2022-01-18 13:21:05,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333270743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:21:05,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:21:05,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:21:05,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793771306] [2022-01-18 13:21:05,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:21:05,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:21:05,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:21:05,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:21:05,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:21:05,022 INFO L87 Difference]: Start difference. First operand 24436 states and 97950 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:06,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:21:06,751 INFO L93 Difference]: Finished difference Result 54820 states and 216499 transitions. [2022-01-18 13:21:06,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:21:06,751 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:21:06,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:21:07,136 INFO L225 Difference]: With dead ends: 54820 [2022-01-18 13:21:07,137 INFO L226 Difference]: Without dead ends: 53545 [2022-01-18 13:21:07,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=507, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:21:07,137 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 582 mSDsluCounter, 2912 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 2781 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:21:07,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [582 Valid, 2781 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:21:07,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53545 states. [2022-01-18 13:21:07,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53545 to 23932. [2022-01-18 13:21:07,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23932 states, 23931 states have (on average 4.015544690986586) internal successors, (96096), 23931 states have internal predecessors, (96096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:08,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23932 states to 23932 states and 96096 transitions. [2022-01-18 13:21:08,067 INFO L78 Accepts]: Start accepts. Automaton has 23932 states and 96096 transitions. Word has length 117 [2022-01-18 13:21:08,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:21:08,068 INFO L470 AbstractCegarLoop]: Abstraction has 23932 states and 96096 transitions. [2022-01-18 13:21:08,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:08,068 INFO L276 IsEmpty]: Start isEmpty. Operand 23932 states and 96096 transitions. [2022-01-18 13:21:08,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:21:08,127 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:21:08,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:21:08,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 13:21:08,128 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:21:08,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:21:08,128 INFO L85 PathProgramCache]: Analyzing trace with hash 122932443, now seen corresponding path program 9 times [2022-01-18 13:21:08,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:21:08,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656499586] [2022-01-18 13:21:08,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:21:08,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:21:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:21:08,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:21:08,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:21:08,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656499586] [2022-01-18 13:21:08,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656499586] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:21:08,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:21:08,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:21:08,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47901438] [2022-01-18 13:21:08,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:21:08,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:21:08,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:21:08,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:21:08,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:21:08,724 INFO L87 Difference]: Start difference. First operand 23932 states and 96096 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:10,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:21:10,574 INFO L93 Difference]: Finished difference Result 56617 states and 223019 transitions. [2022-01-18 13:21:10,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:21:10,575 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:21:10,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:21:10,777 INFO L225 Difference]: With dead ends: 56617 [2022-01-18 13:21:10,777 INFO L226 Difference]: Without dead ends: 56023 [2022-01-18 13:21:10,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:21:10,778 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 687 mSDsluCounter, 3202 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 3028 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:21:10,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [687 Valid, 3028 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:21:10,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56023 states. [2022-01-18 13:21:11,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56023 to 24244. [2022-01-18 13:21:11,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24244 states, 24243 states have (on average 4.015262137524234) internal successors, (97342), 24243 states have internal predecessors, (97342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:11,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24244 states to 24244 states and 97342 transitions. [2022-01-18 13:21:11,712 INFO L78 Accepts]: Start accepts. Automaton has 24244 states and 97342 transitions. Word has length 117 [2022-01-18 13:21:11,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:21:11,713 INFO L470 AbstractCegarLoop]: Abstraction has 24244 states and 97342 transitions. [2022-01-18 13:21:11,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:11,713 INFO L276 IsEmpty]: Start isEmpty. Operand 24244 states and 97342 transitions. [2022-01-18 13:21:11,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:21:11,761 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:21:11,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:21:11,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 13:21:11,762 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:21:11,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:21:11,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1455800059, now seen corresponding path program 10 times [2022-01-18 13:21:11,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:21:11,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501737743] [2022-01-18 13:21:11,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:21:11,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:21:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:21:12,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:21:12,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:21:12,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501737743] [2022-01-18 13:21:12,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501737743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:21:12,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:21:12,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:21:12,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150014324] [2022-01-18 13:21:12,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:21:12,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:21:12,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:21:12,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:21:12,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:21:12,343 INFO L87 Difference]: Start difference. First operand 24244 states and 97342 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:14,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:21:14,096 INFO L93 Difference]: Finished difference Result 56605 states and 222944 transitions. [2022-01-18 13:21:14,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:21:14,097 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:21:14,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:21:14,296 INFO L225 Difference]: With dead ends: 56605 [2022-01-18 13:21:14,296 INFO L226 Difference]: Without dead ends: 55978 [2022-01-18 13:21:14,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:21:14,297 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 780 mSDsluCounter, 2935 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:21:14,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [780 Valid, 2801 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:21:14,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55978 states. [2022-01-18 13:21:15,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55978 to 24199. [2022-01-18 13:21:15,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24199 states, 24198 states have (on average 4.015290519877676) internal successors, (97162), 24198 states have internal predecessors, (97162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:15,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24199 states to 24199 states and 97162 transitions. [2022-01-18 13:21:15,233 INFO L78 Accepts]: Start accepts. Automaton has 24199 states and 97162 transitions. Word has length 117 [2022-01-18 13:21:15,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:21:15,234 INFO L470 AbstractCegarLoop]: Abstraction has 24199 states and 97162 transitions. [2022-01-18 13:21:15,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:15,234 INFO L276 IsEmpty]: Start isEmpty. Operand 24199 states and 97162 transitions. [2022-01-18 13:21:15,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:21:15,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:21:15,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:21:15,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 13:21:15,281 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:21:15,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:21:15,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1870583289, now seen corresponding path program 11 times [2022-01-18 13:21:15,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:21:15,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928633701] [2022-01-18 13:21:15,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:21:15,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:21:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:21:15,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:21:15,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:21:15,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928633701] [2022-01-18 13:21:15,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928633701] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:21:15,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:21:15,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:21:15,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592030936] [2022-01-18 13:21:15,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:21:15,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:21:15,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:21:15,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:21:15,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:21:15,953 INFO L87 Difference]: Start difference. First operand 24199 states and 97162 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:17,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:21:17,635 INFO L93 Difference]: Finished difference Result 56965 states and 224249 transitions. [2022-01-18 13:21:17,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:21:17,635 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:21:17,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:21:17,823 INFO L225 Difference]: With dead ends: 56965 [2022-01-18 13:21:17,823 INFO L226 Difference]: Without dead ends: 55843 [2022-01-18 13:21:17,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:21:17,823 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 683 mSDsluCounter, 3016 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:21:17,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [683 Valid, 2867 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:21:17,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55843 states. [2022-01-18 13:21:18,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55843 to 24064. [2022-01-18 13:21:18,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24064 states, 24063 states have (on average 4.01575032207123) internal successors, (96631), 24063 states have internal predecessors, (96631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:18,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24064 states to 24064 states and 96631 transitions. [2022-01-18 13:21:18,775 INFO L78 Accepts]: Start accepts. Automaton has 24064 states and 96631 transitions. Word has length 117 [2022-01-18 13:21:18,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:21:18,775 INFO L470 AbstractCegarLoop]: Abstraction has 24064 states and 96631 transitions. [2022-01-18 13:21:18,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:18,776 INFO L276 IsEmpty]: Start isEmpty. Operand 24064 states and 96631 transitions. [2022-01-18 13:21:18,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:21:18,823 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:21:18,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:21:18,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 13:21:18,823 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:21:18,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:21:18,824 INFO L85 PathProgramCache]: Analyzing trace with hash -129350565, now seen corresponding path program 12 times [2022-01-18 13:21:18,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:21:18,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799140889] [2022-01-18 13:21:18,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:21:18,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:21:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:21:19,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:21:19,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:21:19,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799140889] [2022-01-18 13:21:19,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799140889] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:21:19,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:21:19,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:21:19,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783139331] [2022-01-18 13:21:19,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:21:19,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:21:19,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:21:19,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:21:19,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:21:19,465 INFO L87 Difference]: Start difference. First operand 24064 states and 96631 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:21,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:21:21,250 INFO L93 Difference]: Finished difference Result 57856 states and 227089 transitions. [2022-01-18 13:21:21,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:21:21,250 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:21:21,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:21:21,444 INFO L225 Difference]: With dead ends: 57856 [2022-01-18 13:21:21,444 INFO L226 Difference]: Without dead ends: 57262 [2022-01-18 13:21:21,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:21:21,445 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 823 mSDsluCounter, 3057 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 2905 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:21:21,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [823 Valid, 2905 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:21:21,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57262 states. [2022-01-18 13:21:22,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57262 to 24121. [2022-01-18 13:21:22,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24121 states, 24120 states have (on average 4.014054726368159) internal successors, (96819), 24120 states have internal predecessors, (96819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:22,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24121 states to 24121 states and 96819 transitions. [2022-01-18 13:21:22,395 INFO L78 Accepts]: Start accepts. Automaton has 24121 states and 96819 transitions. Word has length 117 [2022-01-18 13:21:22,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:21:22,395 INFO L470 AbstractCegarLoop]: Abstraction has 24121 states and 96819 transitions. [2022-01-18 13:21:22,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:22,396 INFO L276 IsEmpty]: Start isEmpty. Operand 24121 states and 96819 transitions. [2022-01-18 13:21:22,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:21:22,441 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:21:22,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:21:22,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 13:21:22,441 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:21:22,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:21:22,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1203517051, now seen corresponding path program 13 times [2022-01-18 13:21:22,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:21:22,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817513689] [2022-01-18 13:21:22,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:21:22,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:21:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:21:23,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:21:23,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:21:23,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817513689] [2022-01-18 13:21:23,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817513689] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:21:23,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:21:23,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:21:23,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783074885] [2022-01-18 13:21:23,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:21:23,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:21:23,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:21:23,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:21:23,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:21:23,129 INFO L87 Difference]: Start difference. First operand 24121 states and 96819 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:24,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:21:24,767 INFO L93 Difference]: Finished difference Result 57844 states and 227014 transitions. [2022-01-18 13:21:24,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:21:24,767 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:21:24,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:21:24,959 INFO L225 Difference]: With dead ends: 57844 [2022-01-18 13:21:24,959 INFO L226 Difference]: Without dead ends: 57217 [2022-01-18 13:21:24,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:21:24,959 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 872 mSDsluCounter, 2944 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 2814 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:21:24,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [872 Valid, 2814 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:21:25,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57217 states. [2022-01-18 13:21:25,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57217 to 24076. [2022-01-18 13:21:25,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24076 states, 24075 states have (on average 4.015451713395638) internal successors, (96672), 24075 states have internal predecessors, (96672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:26,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24076 states to 24076 states and 96672 transitions. [2022-01-18 13:21:26,045 INFO L78 Accepts]: Start accepts. Automaton has 24076 states and 96672 transitions. Word has length 117 [2022-01-18 13:21:26,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:21:26,045 INFO L470 AbstractCegarLoop]: Abstraction has 24076 states and 96672 transitions. [2022-01-18 13:21:26,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:26,046 INFO L276 IsEmpty]: Start isEmpty. Operand 24076 states and 96672 transitions. [2022-01-18 13:21:26,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:21:26,097 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:21:26,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:21:26,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 13:21:26,098 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:21:26,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:21:26,098 INFO L85 PathProgramCache]: Analyzing trace with hash -748052795, now seen corresponding path program 14 times [2022-01-18 13:21:26,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:21:26,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43033524] [2022-01-18 13:21:26,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:21:26,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:21:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:21:26,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:21:26,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:21:26,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43033524] [2022-01-18 13:21:26,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43033524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:21:26,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:21:26,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:21:26,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874004380] [2022-01-18 13:21:26,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:21:26,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:21:26,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:21:26,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:21:26,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:21:26,759 INFO L87 Difference]: Start difference. First operand 24076 states and 96672 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:28,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:21:28,475 INFO L93 Difference]: Finished difference Result 57079 states and 224440 transitions. [2022-01-18 13:21:28,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:21:28,475 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:21:28,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:21:28,663 INFO L225 Difference]: With dead ends: 57079 [2022-01-18 13:21:28,664 INFO L226 Difference]: Without dead ends: 56485 [2022-01-18 13:21:28,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:21:28,664 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 752 mSDsluCounter, 3219 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 3045 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:21:28,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 3045 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:21:28,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56485 states. [2022-01-18 13:21:29,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56485 to 24112. [2022-01-18 13:21:29,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24112 states, 24111 states have (on average 4.014059972626602) internal successors, (96783), 24111 states have internal predecessors, (96783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:29,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24112 states to 24112 states and 96783 transitions. [2022-01-18 13:21:29,593 INFO L78 Accepts]: Start accepts. Automaton has 24112 states and 96783 transitions. Word has length 117 [2022-01-18 13:21:29,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:21:29,593 INFO L470 AbstractCegarLoop]: Abstraction has 24112 states and 96783 transitions. [2022-01-18 13:21:29,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:29,593 INFO L276 IsEmpty]: Start isEmpty. Operand 24112 states and 96783 transitions. [2022-01-18 13:21:29,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:21:29,638 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:21:29,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:21:29,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 13:21:29,639 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:21:29,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:21:29,639 INFO L85 PathProgramCache]: Analyzing trace with hash 311958299, now seen corresponding path program 15 times [2022-01-18 13:21:29,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:21:29,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376855513] [2022-01-18 13:21:29,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:21:29,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:21:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:21:30,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:21:30,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:21:30,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376855513] [2022-01-18 13:21:30,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376855513] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:21:30,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:21:30,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:21:30,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792328544] [2022-01-18 13:21:30,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:21:30,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:21:30,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:21:30,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:21:30,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:21:30,332 INFO L87 Difference]: Start difference. First operand 24112 states and 96783 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:31,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:21:31,968 INFO L93 Difference]: Finished difference Result 56590 states and 222847 transitions. [2022-01-18 13:21:31,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:21:31,969 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:21:31,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:21:32,154 INFO L225 Difference]: With dead ends: 56590 [2022-01-18 13:21:32,154 INFO L226 Difference]: Without dead ends: 55999 [2022-01-18 13:21:32,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:21:32,154 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 736 mSDsluCounter, 3029 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 2871 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:21:32,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [736 Valid, 2871 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:21:32,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55999 states. [2022-01-18 13:21:33,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55999 to 24076. [2022-01-18 13:21:33,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24076 states, 24075 states have (on average 4.014953271028038) internal successors, (96660), 24075 states have internal predecessors, (96660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:33,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24076 states to 24076 states and 96660 transitions. [2022-01-18 13:21:33,173 INFO L78 Accepts]: Start accepts. Automaton has 24076 states and 96660 transitions. Word has length 117 [2022-01-18 13:21:33,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:21:33,173 INFO L470 AbstractCegarLoop]: Abstraction has 24076 states and 96660 transitions. [2022-01-18 13:21:33,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:33,174 INFO L276 IsEmpty]: Start isEmpty. Operand 24076 states and 96660 transitions. [2022-01-18 13:21:33,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:21:33,224 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:21:33,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:21:33,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 13:21:33,225 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:21:33,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:21:33,225 INFO L85 PathProgramCache]: Analyzing trace with hash -295877403, now seen corresponding path program 16 times [2022-01-18 13:21:33,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:21:33,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503193017] [2022-01-18 13:21:33,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:21:33,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:21:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:21:33,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:21:33,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:21:33,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503193017] [2022-01-18 13:21:33,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503193017] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:21:33,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:21:33,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:21:33,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975298796] [2022-01-18 13:21:33,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:21:33,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:21:33,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:21:33,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:21:33,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:21:33,921 INFO L87 Difference]: Start difference. First operand 24076 states and 96660 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:35,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:21:35,584 INFO L93 Difference]: Finished difference Result 57175 states and 224803 transitions. [2022-01-18 13:21:35,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:21:35,585 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:21:35,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:21:35,774 INFO L225 Difference]: With dead ends: 57175 [2022-01-18 13:21:35,774 INFO L226 Difference]: Without dead ends: 56593 [2022-01-18 13:21:35,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:21:35,775 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 812 mSDsluCounter, 2927 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 2794 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:21:35,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [812 Valid, 2794 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:21:35,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56593 states. [2022-01-18 13:21:36,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56593 to 24112. [2022-01-18 13:21:36,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24112 states, 24111 states have (on average 4.0135622744805275) internal successors, (96771), 24111 states have internal predecessors, (96771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:36,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24112 states to 24112 states and 96771 transitions. [2022-01-18 13:21:36,694 INFO L78 Accepts]: Start accepts. Automaton has 24112 states and 96771 transitions. Word has length 117 [2022-01-18 13:21:36,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:21:36,695 INFO L470 AbstractCegarLoop]: Abstraction has 24112 states and 96771 transitions. [2022-01-18 13:21:36,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:36,695 INFO L276 IsEmpty]: Start isEmpty. Operand 24112 states and 96771 transitions. [2022-01-18 13:21:36,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:21:36,740 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:21:36,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:21:36,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 13:21:36,741 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:21:36,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:21:36,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1978403525, now seen corresponding path program 17 times [2022-01-18 13:21:36,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:21:36,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52797588] [2022-01-18 13:21:36,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:21:36,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:21:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:21:37,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:21:37,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:21:37,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52797588] [2022-01-18 13:21:37,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52797588] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:21:37,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:21:37,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:21:37,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352516331] [2022-01-18 13:21:37,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:21:37,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:21:37,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:21:37,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:21:37,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:21:37,372 INFO L87 Difference]: Start difference. First operand 24112 states and 96771 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:39,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:21:39,056 INFO L93 Difference]: Finished difference Result 56590 states and 222835 transitions. [2022-01-18 13:21:39,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:21:39,056 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:21:39,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:21:39,249 INFO L225 Difference]: With dead ends: 56590 [2022-01-18 13:21:39,249 INFO L226 Difference]: Without dead ends: 55987 [2022-01-18 13:21:39,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:21:39,250 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 731 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 2805 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:21:39,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [731 Valid, 2805 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1248 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:21:39,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55987 states. [2022-01-18 13:21:40,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55987 to 24064. [2022-01-18 13:21:40,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24064 states, 24063 states have (on average 4.015251631134937) internal successors, (96619), 24063 states have internal predecessors, (96619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:40,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24064 states to 24064 states and 96619 transitions. [2022-01-18 13:21:40,255 INFO L78 Accepts]: Start accepts. Automaton has 24064 states and 96619 transitions. Word has length 117 [2022-01-18 13:21:40,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:21:40,255 INFO L470 AbstractCegarLoop]: Abstraction has 24064 states and 96619 transitions. [2022-01-18 13:21:40,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:40,255 INFO L276 IsEmpty]: Start isEmpty. Operand 24064 states and 96619 transitions. [2022-01-18 13:21:40,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:21:40,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:21:40,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:21:40,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 13:21:40,305 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:21:40,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:21:40,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1869964857, now seen corresponding path program 18 times [2022-01-18 13:21:40,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:21:40,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48470433] [2022-01-18 13:21:40,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:21:40,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:21:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:21:41,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:21:41,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:21:41,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48470433] [2022-01-18 13:21:41,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48470433] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:21:41,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:21:41,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:21:41,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088503630] [2022-01-18 13:21:41,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:21:41,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:21:41,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:21:41,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:21:41,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:21:41,023 INFO L87 Difference]: Start difference. First operand 24064 states and 96619 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:42,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:21:42,837 INFO L93 Difference]: Finished difference Result 57667 states and 226631 transitions. [2022-01-18 13:21:42,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:21:42,838 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:21:42,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:21:43,029 INFO L225 Difference]: With dead ends: 57667 [2022-01-18 13:21:43,030 INFO L226 Difference]: Without dead ends: 56680 [2022-01-18 13:21:43,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:21:43,030 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 808 mSDsluCounter, 2990 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 2837 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:21:43,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [808 Valid, 2837 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:21:43,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56680 states. [2022-01-18 13:21:43,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56680 to 24172. [2022-01-18 13:21:43,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24172 states, 24171 states have (on average 4.011087667039014) internal successors, (96952), 24171 states have internal predecessors, (96952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:44,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24172 states to 24172 states and 96952 transitions. [2022-01-18 13:21:44,004 INFO L78 Accepts]: Start accepts. Automaton has 24172 states and 96952 transitions. Word has length 117 [2022-01-18 13:21:44,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:21:44,004 INFO L470 AbstractCegarLoop]: Abstraction has 24172 states and 96952 transitions. [2022-01-18 13:21:44,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:44,004 INFO L276 IsEmpty]: Start isEmpty. Operand 24172 states and 96952 transitions. [2022-01-18 13:21:44,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:21:44,049 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:21:44,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:21:44,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 13:21:44,050 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:21:44,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:21:44,050 INFO L85 PathProgramCache]: Analyzing trace with hash 500999523, now seen corresponding path program 19 times [2022-01-18 13:21:44,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:21:44,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275351401] [2022-01-18 13:21:44,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:21:44,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:21:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:21:44,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:21:44,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:21:44,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275351401] [2022-01-18 13:21:44,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275351401] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:21:44,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:21:44,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:21:44,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715679913] [2022-01-18 13:21:44,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:21:44,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:21:44,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:21:44,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:21:44,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:21:44,697 INFO L87 Difference]: Start difference. First operand 24172 states and 96952 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:46,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:21:46,377 INFO L93 Difference]: Finished difference Result 57271 states and 225095 transitions. [2022-01-18 13:21:46,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:21:46,378 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:21:46,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:21:46,580 INFO L225 Difference]: With dead ends: 57271 [2022-01-18 13:21:46,581 INFO L226 Difference]: Without dead ends: 56689 [2022-01-18 13:21:46,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:21:46,581 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 877 mSDsluCounter, 2835 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 2713 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:21:46,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [877 Valid, 2713 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:21:46,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56689 states. [2022-01-18 13:21:47,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56689 to 24208. [2022-01-18 13:21:47,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24208 states, 24207 states have (on average 4.009707935721073) internal successors, (97063), 24207 states have internal predecessors, (97063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:47,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24208 states to 24208 states and 97063 transitions. [2022-01-18 13:21:47,588 INFO L78 Accepts]: Start accepts. Automaton has 24208 states and 97063 transitions. Word has length 117 [2022-01-18 13:21:47,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:21:47,588 INFO L470 AbstractCegarLoop]: Abstraction has 24208 states and 97063 transitions. [2022-01-18 13:21:47,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:47,589 INFO L276 IsEmpty]: Start isEmpty. Operand 24208 states and 97063 transitions. [2022-01-18 13:21:47,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:21:47,639 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:21:47,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:21:47,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 13:21:47,639 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:21:47,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:21:47,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1181526599, now seen corresponding path program 20 times [2022-01-18 13:21:47,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:21:47,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291349107] [2022-01-18 13:21:47,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:21:47,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:21:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:21:48,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:21:48,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:21:48,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291349107] [2022-01-18 13:21:48,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291349107] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:21:48,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:21:48,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:21:48,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949379032] [2022-01-18 13:21:48,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:21:48,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:21:48,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:21:48,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:21:48,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:21:48,275 INFO L87 Difference]: Start difference. First operand 24208 states and 97063 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:49,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:21:49,764 INFO L93 Difference]: Finished difference Result 56686 states and 223127 transitions. [2022-01-18 13:21:49,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:21:49,765 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:21:49,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:21:50,194 INFO L225 Difference]: With dead ends: 56686 [2022-01-18 13:21:50,194 INFO L226 Difference]: Without dead ends: 55951 [2022-01-18 13:21:50,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:21:50,195 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 687 mSDsluCounter, 3021 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 2860 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:21:50,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [687 Valid, 2860 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:21:50,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55951 states. [2022-01-18 13:21:50,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55951 to 24028. [2022-01-18 13:21:50,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24028 states, 24027 states have (on average 4.015149623340409) internal successors, (96472), 24027 states have internal predecessors, (96472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:50,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24028 states to 24028 states and 96472 transitions. [2022-01-18 13:21:50,930 INFO L78 Accepts]: Start accepts. Automaton has 24028 states and 96472 transitions. Word has length 117 [2022-01-18 13:21:50,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:21:50,930 INFO L470 AbstractCegarLoop]: Abstraction has 24028 states and 96472 transitions. [2022-01-18 13:21:50,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:50,930 INFO L276 IsEmpty]: Start isEmpty. Operand 24028 states and 96472 transitions. [2022-01-18 13:21:50,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:21:50,978 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:21:50,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:21:50,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 13:21:50,979 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:21:50,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:21:50,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1614110915, now seen corresponding path program 21 times [2022-01-18 13:21:50,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:21:50,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706689620] [2022-01-18 13:21:50,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:21:50,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:21:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:21:51,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:21:51,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:21:51,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706689620] [2022-01-18 13:21:51,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706689620] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:21:51,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:21:51,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:21:51,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996576791] [2022-01-18 13:21:51,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:21:51,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:21:51,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:21:51,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:21:51,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:21:51,773 INFO L87 Difference]: Start difference. First operand 24028 states and 96472 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:53,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:21:53,410 INFO L93 Difference]: Finished difference Result 58003 states and 227897 transitions. [2022-01-18 13:21:53,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:21:53,410 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:21:53,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:21:53,814 INFO L225 Difference]: With dead ends: 58003 [2022-01-18 13:21:53,814 INFO L226 Difference]: Without dead ends: 57409 [2022-01-18 13:21:53,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=257, Invalid=555, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:21:53,815 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 816 mSDsluCounter, 3080 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 2952 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:21:53,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [816 Valid, 2952 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:21:53,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57409 states. [2022-01-18 13:21:54,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57409 to 24109. [2022-01-18 13:21:54,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24109 states, 24108 states have (on average 4.013854322216692) internal successors, (96766), 24108 states have internal predecessors, (96766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:54,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24109 states to 24109 states and 96766 transitions. [2022-01-18 13:21:54,504 INFO L78 Accepts]: Start accepts. Automaton has 24109 states and 96766 transitions. Word has length 117 [2022-01-18 13:21:54,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:21:54,504 INFO L470 AbstractCegarLoop]: Abstraction has 24109 states and 96766 transitions. [2022-01-18 13:21:54,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:54,504 INFO L276 IsEmpty]: Start isEmpty. Operand 24109 states and 96766 transitions. [2022-01-18 13:21:54,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:21:54,550 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:21:54,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:21:54,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 13:21:54,551 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:21:54,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:21:54,551 INFO L85 PathProgramCache]: Analyzing trace with hash -281243299, now seen corresponding path program 22 times [2022-01-18 13:21:54,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:21:54,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293756349] [2022-01-18 13:21:54,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:21:54,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:21:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:21:55,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:21:55,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:21:55,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293756349] [2022-01-18 13:21:55,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293756349] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:21:55,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:21:55,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:21:55,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663718479] [2022-01-18 13:21:55,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:21:55,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:21:55,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:21:55,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:21:55,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:21:55,461 INFO L87 Difference]: Start difference. First operand 24109 states and 96766 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:57,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:21:57,198 INFO L93 Difference]: Finished difference Result 58396 states and 229307 transitions. [2022-01-18 13:21:57,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 13:21:57,198 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:21:57,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:21:57,384 INFO L225 Difference]: With dead ends: 58396 [2022-01-18 13:21:57,384 INFO L226 Difference]: Without dead ends: 57769 [2022-01-18 13:21:57,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=277, Invalid=593, Unknown=0, NotChecked=0, Total=870 [2022-01-18 13:21:57,385 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 751 mSDsluCounter, 3153 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 3033 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:21:57,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 3033 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:21:57,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57769 states. [2022-01-18 13:21:58,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57769 to 24064. [2022-01-18 13:21:58,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24064 states, 24063 states have (on average 4.015251631134937) internal successors, (96619), 24063 states have internal predecessors, (96619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:58,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24064 states to 24064 states and 96619 transitions. [2022-01-18 13:21:58,329 INFO L78 Accepts]: Start accepts. Automaton has 24064 states and 96619 transitions. Word has length 117 [2022-01-18 13:21:58,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:21:58,329 INFO L470 AbstractCegarLoop]: Abstraction has 24064 states and 96619 transitions. [2022-01-18 13:21:58,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:21:58,329 INFO L276 IsEmpty]: Start isEmpty. Operand 24064 states and 96619 transitions. [2022-01-18 13:21:58,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:21:58,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:21:58,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:21:58,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 13:21:58,374 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:21:58,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:21:58,375 INFO L85 PathProgramCache]: Analyzing trace with hash 2062154151, now seen corresponding path program 23 times [2022-01-18 13:21:58,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:21:58,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819598935] [2022-01-18 13:21:58,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:21:58,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:21:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:21:59,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:21:59,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:21:59,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819598935] [2022-01-18 13:21:59,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819598935] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:21:59,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:21:59,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:21:59,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924597594] [2022-01-18 13:21:59,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:21:59,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:21:59,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:21:59,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:21:59,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:21:59,179 INFO L87 Difference]: Start difference. First operand 24064 states and 96619 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:00,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:22:00,603 INFO L93 Difference]: Finished difference Result 58552 states and 229694 transitions. [2022-01-18 13:22:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:22:00,604 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:22:00,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:22:00,788 INFO L225 Difference]: With dead ends: 58552 [2022-01-18 13:22:00,788 INFO L226 Difference]: Without dead ends: 57958 [2022-01-18 13:22:00,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=239, Invalid=517, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:22:00,788 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 1017 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 2623 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:22:00,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1017 Valid, 2623 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:22:00,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57958 states. [2022-01-18 13:22:01,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57958 to 24100. [2022-01-18 13:22:01,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24100 states, 24099 states have (on average 4.013859496244658) internal successors, (96730), 24099 states have internal predecessors, (96730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:01,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24100 states to 24100 states and 96730 transitions. [2022-01-18 13:22:01,720 INFO L78 Accepts]: Start accepts. Automaton has 24100 states and 96730 transitions. Word has length 117 [2022-01-18 13:22:01,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:22:01,720 INFO L470 AbstractCegarLoop]: Abstraction has 24100 states and 96730 transitions. [2022-01-18 13:22:01,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:01,720 INFO L276 IsEmpty]: Start isEmpty. Operand 24100 states and 96730 transitions. [2022-01-18 13:22:01,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:22:01,766 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:22:01,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:22:01,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 13:22:01,767 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:22:01,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:22:01,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1172802051, now seen corresponding path program 24 times [2022-01-18 13:22:01,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:22:01,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7901695] [2022-01-18 13:22:01,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:22:01,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:22:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:22:02,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:22:02,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:22:02,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7901695] [2022-01-18 13:22:02,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7901695] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:22:02,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:22:02,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:22:02,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744941591] [2022-01-18 13:22:02,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:22:02,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:22:02,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:22:02,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:22:02,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:22:02,403 INFO L87 Difference]: Start difference. First operand 24100 states and 96730 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:04,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:22:04,074 INFO L93 Difference]: Finished difference Result 58063 states and 228101 transitions. [2022-01-18 13:22:04,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:22:04,075 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:22:04,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:22:04,259 INFO L225 Difference]: With dead ends: 58063 [2022-01-18 13:22:04,260 INFO L226 Difference]: Without dead ends: 57472 [2022-01-18 13:22:04,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:22:04,260 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 725 mSDsluCounter, 3247 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 3080 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:22:04,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [725 Valid, 3080 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:22:04,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57472 states. [2022-01-18 13:22:05,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57472 to 24064. [2022-01-18 13:22:05,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24064 states, 24063 states have (on average 4.014752940198645) internal successors, (96607), 24063 states have internal predecessors, (96607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:05,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24064 states to 24064 states and 96607 transitions. [2022-01-18 13:22:05,201 INFO L78 Accepts]: Start accepts. Automaton has 24064 states and 96607 transitions. Word has length 117 [2022-01-18 13:22:05,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:22:05,202 INFO L470 AbstractCegarLoop]: Abstraction has 24064 states and 96607 transitions. [2022-01-18 13:22:05,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:05,202 INFO L276 IsEmpty]: Start isEmpty. Operand 24064 states and 96607 transitions. [2022-01-18 13:22:05,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:22:05,249 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:22:05,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:22:05,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 13:22:05,250 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:22:05,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:22:05,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1780637753, now seen corresponding path program 25 times [2022-01-18 13:22:05,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:22:05,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88695499] [2022-01-18 13:22:05,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:22:05,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:22:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:22:05,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:22:05,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:22:05,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88695499] [2022-01-18 13:22:05,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88695499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:22:05,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:22:05,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:22:05,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983294220] [2022-01-18 13:22:05,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:22:05,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:22:05,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:22:05,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:22:05,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:22:05,902 INFO L87 Difference]: Start difference. First operand 24064 states and 96607 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:07,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:22:07,672 INFO L93 Difference]: Finished difference Result 58540 states and 229652 transitions. [2022-01-18 13:22:07,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:22:07,672 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:22:07,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:22:07,876 INFO L225 Difference]: With dead ends: 58540 [2022-01-18 13:22:07,876 INFO L226 Difference]: Without dead ends: 57958 [2022-01-18 13:22:07,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:22:07,877 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 867 mSDsluCounter, 2967 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 2837 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:22:07,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [867 Valid, 2837 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:22:07,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57958 states. [2022-01-18 13:22:08,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57958 to 24100. [2022-01-18 13:22:08,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24100 states, 24099 states have (on average 4.013361550271796) internal successors, (96718), 24099 states have internal predecessors, (96718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:08,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24100 states to 24100 states and 96718 transitions. [2022-01-18 13:22:08,875 INFO L78 Accepts]: Start accepts. Automaton has 24100 states and 96718 transitions. Word has length 117 [2022-01-18 13:22:08,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:22:08,875 INFO L470 AbstractCegarLoop]: Abstraction has 24100 states and 96718 transitions. [2022-01-18 13:22:08,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:08,876 INFO L276 IsEmpty]: Start isEmpty. Operand 24100 states and 96718 transitions. [2022-01-18 13:22:08,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:22:08,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:22:08,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:22:08,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 13:22:08,921 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:22:08,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:22:08,921 INFO L85 PathProgramCache]: Analyzing trace with hash 831803421, now seen corresponding path program 26 times [2022-01-18 13:22:08,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:22:08,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587953650] [2022-01-18 13:22:08,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:22:08,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:22:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:22:09,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:22:09,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:22:09,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587953650] [2022-01-18 13:22:09,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587953650] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:22:09,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:22:09,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:22:09,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503025108] [2022-01-18 13:22:09,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:22:09,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:22:09,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:22:09,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:22:09,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:22:09,542 INFO L87 Difference]: Start difference. First operand 24100 states and 96718 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:11,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:22:11,387 INFO L93 Difference]: Finished difference Result 58063 states and 228089 transitions. [2022-01-18 13:22:11,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:22:11,387 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:22:11,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:22:11,606 INFO L225 Difference]: With dead ends: 58063 [2022-01-18 13:22:11,606 INFO L226 Difference]: Without dead ends: 57460 [2022-01-18 13:22:11,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:22:11,607 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 670 mSDsluCounter, 3156 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:22:11,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [670 Valid, 2996 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:22:11,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57460 states. [2022-01-18 13:22:12,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57460 to 24052. [2022-01-18 13:22:12,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24052 states, 24051 states have (on average 4.0150513492162485) internal successors, (96566), 24051 states have internal predecessors, (96566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:12,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24052 states to 24052 states and 96566 transitions. [2022-01-18 13:22:12,368 INFO L78 Accepts]: Start accepts. Automaton has 24052 states and 96566 transitions. Word has length 117 [2022-01-18 13:22:12,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:22:12,368 INFO L470 AbstractCegarLoop]: Abstraction has 24052 states and 96566 transitions. [2022-01-18 13:22:12,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:12,368 INFO L276 IsEmpty]: Start isEmpty. Operand 24052 states and 96566 transitions. [2022-01-18 13:22:12,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:22:12,631 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:22:12,631 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:22:12,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 13:22:12,631 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:22:12,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:22:12,632 INFO L85 PathProgramCache]: Analyzing trace with hash -295066315, now seen corresponding path program 27 times [2022-01-18 13:22:12,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:22:12,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084704426] [2022-01-18 13:22:12,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:22:12,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:22:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:22:13,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:22:13,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:22:13,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084704426] [2022-01-18 13:22:13,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084704426] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:22:13,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:22:13,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:22:13,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497915043] [2022-01-18 13:22:13,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:22:13,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:22:13,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:22:13,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:22:13,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:22:13,315 INFO L87 Difference]: Start difference. First operand 24052 states and 96566 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:14,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:22:14,814 INFO L93 Difference]: Finished difference Result 57178 states and 225048 transitions. [2022-01-18 13:22:14,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:22:14,815 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:22:14,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:22:14,996 INFO L225 Difference]: With dead ends: 57178 [2022-01-18 13:22:14,996 INFO L226 Difference]: Without dead ends: 56584 [2022-01-18 13:22:14,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=241, Invalid=515, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:22:14,997 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 761 mSDsluCounter, 2946 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:22:14,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [761 Valid, 2810 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:22:15,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56584 states. [2022-01-18 13:22:15,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56584 to 24160. [2022-01-18 13:22:15,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24160 states, 24159 states have (on average 4.013866467982946) internal successors, (96971), 24159 states have internal predecessors, (96971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:15,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24160 states to 24160 states and 96971 transitions. [2022-01-18 13:22:15,911 INFO L78 Accepts]: Start accepts. Automaton has 24160 states and 96971 transitions. Word has length 117 [2022-01-18 13:22:15,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:22:15,911 INFO L470 AbstractCegarLoop]: Abstraction has 24160 states and 96971 transitions. [2022-01-18 13:22:15,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:15,911 INFO L276 IsEmpty]: Start isEmpty. Operand 24160 states and 96971 transitions. [2022-01-18 13:22:15,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:22:15,958 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:22:15,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:22:15,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 13:22:15,958 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:22:15,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:22:15,959 INFO L85 PathProgramCache]: Analyzing trace with hash 764944779, now seen corresponding path program 28 times [2022-01-18 13:22:15,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:22:15,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686423398] [2022-01-18 13:22:15,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:22:15,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:22:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:22:16,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:22:16,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:22:16,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686423398] [2022-01-18 13:22:16,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686423398] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:22:16,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:22:16,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:22:16,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266155700] [2022-01-18 13:22:16,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:22:16,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:22:16,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:22:16,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:22:16,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:22:16,788 INFO L87 Difference]: Start difference. First operand 24160 states and 96971 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:18,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:22:18,364 INFO L93 Difference]: Finished difference Result 57139 states and 224892 transitions. [2022-01-18 13:22:18,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:22:18,364 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:22:18,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:22:18,544 INFO L225 Difference]: With dead ends: 57139 [2022-01-18 13:22:18,544 INFO L226 Difference]: Without dead ends: 56548 [2022-01-18 13:22:18,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=240, Invalid=516, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:22:18,545 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 710 mSDsluCounter, 3406 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 3203 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:22:18,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [710 Valid, 3203 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1418 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:22:18,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56548 states. [2022-01-18 13:22:19,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56548 to 24124. [2022-01-18 13:22:19,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24124 states, 24123 states have (on average 4.013762798988517) internal successors, (96824), 24123 states have internal predecessors, (96824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:19,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24124 states to 24124 states and 96824 transitions. [2022-01-18 13:22:19,468 INFO L78 Accepts]: Start accepts. Automaton has 24124 states and 96824 transitions. Word has length 117 [2022-01-18 13:22:19,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:22:19,468 INFO L470 AbstractCegarLoop]: Abstraction has 24124 states and 96824 transitions. [2022-01-18 13:22:19,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:19,468 INFO L276 IsEmpty]: Start isEmpty. Operand 24124 states and 96824 transitions. [2022-01-18 13:22:19,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:22:19,514 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:22:19,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:22:19,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 13:22:19,514 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:22:19,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:22:19,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1740003747, now seen corresponding path program 29 times [2022-01-18 13:22:19,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:22:19,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104318929] [2022-01-18 13:22:19,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:22:19,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:22:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:22:20,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:22:20,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:22:20,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104318929] [2022-01-18 13:22:20,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104318929] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:22:20,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:22:20,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:22:20,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388269857] [2022-01-18 13:22:20,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:22:20,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:22:20,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:22:20,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:22:20,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:22:20,168 INFO L87 Difference]: Start difference. First operand 24124 states and 96824 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:21,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:22:21,804 INFO L93 Difference]: Finished difference Result 56761 states and 223713 transitions. [2022-01-18 13:22:21,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:22:21,805 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:22:21,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:22:21,988 INFO L225 Difference]: With dead ends: 56761 [2022-01-18 13:22:21,988 INFO L226 Difference]: Without dead ends: 55918 [2022-01-18 13:22:21,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=242, Invalid=514, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:22:21,989 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 717 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 2675 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 13:22:21,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [717 Valid, 2675 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 13:22:22,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55918 states. [2022-01-18 13:22:22,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55918 to 24052. [2022-01-18 13:22:22,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24052 states, 24051 states have (on average 4.014053469710199) internal successors, (96542), 24051 states have internal predecessors, (96542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:22,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24052 states to 24052 states and 96542 transitions. [2022-01-18 13:22:22,934 INFO L78 Accepts]: Start accepts. Automaton has 24052 states and 96542 transitions. Word has length 117 [2022-01-18 13:22:22,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:22:22,934 INFO L470 AbstractCegarLoop]: Abstraction has 24052 states and 96542 transitions. [2022-01-18 13:22:22,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:22,934 INFO L276 IsEmpty]: Start isEmpty. Operand 24052 states and 96542 transitions. [2022-01-18 13:22:22,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:22:22,979 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:22:22,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:22:22,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 13:22:22,980 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:22:22,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:22:22,980 INFO L85 PathProgramCache]: Analyzing trace with hash -2124630731, now seen corresponding path program 30 times [2022-01-18 13:22:22,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:22:22,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75926022] [2022-01-18 13:22:22,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:22:22,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:22:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:22:23,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:22:23,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:22:23,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75926022] [2022-01-18 13:22:23,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75926022] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:22:23,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:22:23,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:22:23,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473094713] [2022-01-18 13:22:23,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:22:23,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:22:23,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:22:23,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:22:23,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:22:23,647 INFO L87 Difference]: Start difference. First operand 24052 states and 96542 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:25,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:22:25,527 INFO L93 Difference]: Finished difference Result 58327 states and 229269 transitions. [2022-01-18 13:22:25,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 13:22:25,528 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:22:25,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:22:25,737 INFO L225 Difference]: With dead ends: 58327 [2022-01-18 13:22:25,737 INFO L226 Difference]: Without dead ends: 57745 [2022-01-18 13:22:25,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=282, Invalid=588, Unknown=0, NotChecked=0, Total=870 [2022-01-18 13:22:25,738 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 713 mSDsluCounter, 3191 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 3046 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:22:25,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [713 Valid, 3046 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:22:25,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57745 states. [2022-01-18 13:22:26,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57745 to 24160. [2022-01-18 13:22:26,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24160 states, 24159 states have (on average 4.012873049381183) internal successors, (96947), 24159 states have internal predecessors, (96947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:26,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24160 states to 24160 states and 96947 transitions. [2022-01-18 13:22:26,807 INFO L78 Accepts]: Start accepts. Automaton has 24160 states and 96947 transitions. Word has length 117 [2022-01-18 13:22:26,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:22:26,807 INFO L470 AbstractCegarLoop]: Abstraction has 24160 states and 96947 transitions. [2022-01-18 13:22:26,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:26,808 INFO L276 IsEmpty]: Start isEmpty. Operand 24160 states and 96947 transitions. [2022-01-18 13:22:26,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:22:26,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:22:26,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:22:26,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 13:22:26,853 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:22:26,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:22:26,853 INFO L85 PathProgramCache]: Analyzing trace with hash 487810443, now seen corresponding path program 31 times [2022-01-18 13:22:26,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:22:26,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108212861] [2022-01-18 13:22:26,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:22:26,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:22:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:22:27,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:22:27,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:22:27,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108212861] [2022-01-18 13:22:27,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108212861] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:22:27,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:22:27,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:22:27,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760876431] [2022-01-18 13:22:27,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:22:27,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:22:27,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:22:27,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:22:27,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:22:27,426 INFO L87 Difference]: Start difference. First operand 24160 states and 96947 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:29,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:22:29,211 INFO L93 Difference]: Finished difference Result 57895 states and 227658 transitions. [2022-01-18 13:22:29,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:22:29,211 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:22:29,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:22:29,419 INFO L225 Difference]: With dead ends: 57895 [2022-01-18 13:22:29,419 INFO L226 Difference]: Without dead ends: 57304 [2022-01-18 13:22:29,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=262, Invalid=550, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:22:29,420 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 754 mSDsluCounter, 2961 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 2837 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:22:29,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [754 Valid, 2837 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:22:29,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57304 states. [2022-01-18 13:22:30,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57304 to 24124. [2022-01-18 13:22:30,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24124 states, 24123 states have (on average 4.0127678978568175) internal successors, (96800), 24123 states have internal predecessors, (96800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:30,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24124 states to 24124 states and 96800 transitions. [2022-01-18 13:22:30,170 INFO L78 Accepts]: Start accepts. Automaton has 24124 states and 96800 transitions. Word has length 117 [2022-01-18 13:22:30,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:22:30,170 INFO L470 AbstractCegarLoop]: Abstraction has 24124 states and 96800 transitions. [2022-01-18 13:22:30,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:30,170 INFO L276 IsEmpty]: Start isEmpty. Operand 24124 states and 96800 transitions. [2022-01-18 13:22:30,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:22:30,215 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:22:30,215 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:22:30,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 13:22:30,215 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:22:30,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:22:30,216 INFO L85 PathProgramCache]: Analyzing trace with hash 273223741, now seen corresponding path program 32 times [2022-01-18 13:22:30,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:22:30,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108347568] [2022-01-18 13:22:30,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:22:30,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:22:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:22:30,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:22:30,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:22:30,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108347568] [2022-01-18 13:22:30,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108347568] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:22:30,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:22:30,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:22:30,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413084857] [2022-01-18 13:22:30,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:22:30,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:22:30,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:22:30,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:22:30,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:22:30,952 INFO L87 Difference]: Start difference. First operand 24124 states and 96800 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:32,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:22:32,608 INFO L93 Difference]: Finished difference Result 57301 states and 225669 transitions. [2022-01-18 13:22:32,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:22:32,608 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:22:32,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:22:32,790 INFO L225 Difference]: With dead ends: 57301 [2022-01-18 13:22:32,791 INFO L226 Difference]: Without dead ends: 56434 [2022-01-18 13:22:32,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=264, Invalid=548, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:22:32,791 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 572 mSDsluCounter, 3266 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:22:32,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [572 Valid, 3087 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:22:32,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56434 states. [2022-01-18 13:22:33,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56434 to 24028. [2022-01-18 13:22:33,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24028 states, 24027 states have (on average 4.014150747076206) internal successors, (96448), 24027 states have internal predecessors, (96448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:33,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24028 states to 24028 states and 96448 transitions. [2022-01-18 13:22:33,777 INFO L78 Accepts]: Start accepts. Automaton has 24028 states and 96448 transitions. Word has length 117 [2022-01-18 13:22:33,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:22:33,778 INFO L470 AbstractCegarLoop]: Abstraction has 24028 states and 96448 transitions. [2022-01-18 13:22:33,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:33,778 INFO L276 IsEmpty]: Start isEmpty. Operand 24028 states and 96448 transitions. [2022-01-18 13:22:33,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:22:33,824 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:22:33,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:22:33,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 13:22:33,825 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:22:33,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:22:33,825 INFO L85 PathProgramCache]: Analyzing trace with hash -681414563, now seen corresponding path program 33 times [2022-01-18 13:22:33,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:22:33,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739305532] [2022-01-18 13:22:33,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:22:33,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:22:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:22:34,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:22:34,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:22:34,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739305532] [2022-01-18 13:22:34,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739305532] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:22:34,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:22:34,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:22:34,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839532603] [2022-01-18 13:22:34,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:22:34,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:22:34,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:22:34,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:22:34,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:22:34,403 INFO L87 Difference]: Start difference. First operand 24028 states and 96448 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:35,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:22:35,940 INFO L93 Difference]: Finished difference Result 56314 states and 221759 transitions. [2022-01-18 13:22:35,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:22:35,940 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:22:35,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:22:36,118 INFO L225 Difference]: With dead ends: 56314 [2022-01-18 13:22:36,119 INFO L226 Difference]: Without dead ends: 55327 [2022-01-18 13:22:36,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=221, Invalid=481, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:22:36,119 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 825 mSDsluCounter, 2646 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:22:36,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [825 Valid, 2545 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:22:36,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55327 states. [2022-01-18 13:22:37,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55327 to 24424. [2022-01-18 13:22:37,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24424 states, 24423 states have (on average 4.009376407484748) internal successors, (97921), 24423 states have internal predecessors, (97921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:37,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24424 states to 24424 states and 97921 transitions. [2022-01-18 13:22:37,140 INFO L78 Accepts]: Start accepts. Automaton has 24424 states and 97921 transitions. Word has length 117 [2022-01-18 13:22:37,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:22:37,140 INFO L470 AbstractCegarLoop]: Abstraction has 24424 states and 97921 transitions. [2022-01-18 13:22:37,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:37,140 INFO L276 IsEmpty]: Start isEmpty. Operand 24424 states and 97921 transitions. [2022-01-18 13:22:37,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:22:37,189 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:22:37,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:22:37,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 13:22:37,189 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:22:37,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:22:37,191 INFO L85 PathProgramCache]: Analyzing trace with hash -2050379897, now seen corresponding path program 34 times [2022-01-18 13:22:37,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:22:37,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395764436] [2022-01-18 13:22:37,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:22:37,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:22:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:22:37,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:22:37,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:22:37,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395764436] [2022-01-18 13:22:37,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395764436] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:22:37,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:22:37,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:22:37,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185012720] [2022-01-18 13:22:37,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:22:37,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:22:37,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:22:37,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:22:37,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:22:37,875 INFO L87 Difference]: Start difference. First operand 24424 states and 97921 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:39,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:22:39,533 INFO L93 Difference]: Finished difference Result 56503 states and 222155 transitions. [2022-01-18 13:22:39,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:22:39,533 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:22:39,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:22:39,735 INFO L225 Difference]: With dead ends: 56503 [2022-01-18 13:22:39,735 INFO L226 Difference]: Without dead ends: 55921 [2022-01-18 13:22:39,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=221, Invalid=481, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:22:39,736 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 898 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 2643 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:22:39,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [898 Valid, 2643 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:22:39,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55921 states. [2022-01-18 13:22:40,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55921 to 24460. [2022-01-18 13:22:40,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24460 states, 24459 states have (on average 4.008013410196655) internal successors, (98032), 24459 states have internal predecessors, (98032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:40,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24460 states to 24460 states and 98032 transitions. [2022-01-18 13:22:40,769 INFO L78 Accepts]: Start accepts. Automaton has 24460 states and 98032 transitions. Word has length 117 [2022-01-18 13:22:40,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:22:40,769 INFO L470 AbstractCegarLoop]: Abstraction has 24460 states and 98032 transitions. [2022-01-18 13:22:40,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:40,770 INFO L276 IsEmpty]: Start isEmpty. Operand 24460 states and 98032 transitions. [2022-01-18 13:22:40,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:22:40,817 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:22:40,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:22:40,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 13:22:40,817 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:22:40,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:22:40,817 INFO L85 PathProgramCache]: Analyzing trace with hash 562061277, now seen corresponding path program 35 times [2022-01-18 13:22:40,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:22:40,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940719001] [2022-01-18 13:22:40,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:22:40,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:22:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:22:41,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:22:41,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:22:41,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940719001] [2022-01-18 13:22:41,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940719001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:22:41,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:22:41,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:22:41,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485079209] [2022-01-18 13:22:41,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:22:41,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:22:41,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:22:41,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:22:41,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:22:41,346 INFO L87 Difference]: Start difference. First operand 24460 states and 98032 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:42,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:22:42,842 INFO L93 Difference]: Finished difference Result 55918 states and 220187 transitions. [2022-01-18 13:22:42,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:22:42,842 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:22:42,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:22:43,268 INFO L225 Difference]: With dead ends: 55918 [2022-01-18 13:22:43,268 INFO L226 Difference]: Without dead ends: 55219 [2022-01-18 13:22:43,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=221, Invalid=481, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:22:43,269 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 699 mSDsluCounter, 2886 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 2745 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:22:43,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [699 Valid, 2745 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:22:43,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55219 states. [2022-01-18 13:22:43,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55219 to 24316. [2022-01-18 13:22:43,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.009047912811022) internal successors, (97480), 24315 states have internal predecessors, (97480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:44,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97480 transitions. [2022-01-18 13:22:44,014 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97480 transitions. Word has length 117 [2022-01-18 13:22:44,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:22:44,014 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97480 transitions. [2022-01-18 13:22:44,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:44,014 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97480 transitions. [2022-01-18 13:22:44,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:22:44,063 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:22:44,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:22:44,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 13:22:44,064 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:22:44,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:22:44,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1103717495, now seen corresponding path program 36 times [2022-01-18 13:22:44,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:22:44,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657681618] [2022-01-18 13:22:44,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:22:44,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:22:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:22:44,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:22:44,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:22:44,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657681618] [2022-01-18 13:22:44,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657681618] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:22:44,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:22:44,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:22:44,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029239220] [2022-01-18 13:22:44,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:22:44,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:22:44,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:22:44,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:22:44,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:22:44,813 INFO L87 Difference]: Start difference. First operand 24316 states and 97480 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:46,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:22:46,209 INFO L93 Difference]: Finished difference Result 55882 states and 220040 transitions. [2022-01-18 13:22:46,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:22:46,210 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:22:46,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:22:46,387 INFO L225 Difference]: With dead ends: 55882 [2022-01-18 13:22:46,388 INFO L226 Difference]: Without dead ends: 55300 [2022-01-18 13:22:46,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=225, Invalid=477, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:22:46,388 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 727 mSDsluCounter, 2641 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:22:46,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [727 Valid, 2542 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:22:46,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55300 states. [2022-01-18 13:22:47,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55300 to 24424. [2022-01-18 13:22:47,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24424 states, 24423 states have (on average 4.007902387094132) internal successors, (97885), 24423 states have internal predecessors, (97885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:47,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24424 states to 24424 states and 97885 transitions. [2022-01-18 13:22:47,319 INFO L78 Accepts]: Start accepts. Automaton has 24424 states and 97885 transitions. Word has length 117 [2022-01-18 13:22:47,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:22:47,319 INFO L470 AbstractCegarLoop]: Abstraction has 24424 states and 97885 transitions. [2022-01-18 13:22:47,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:47,320 INFO L276 IsEmpty]: Start isEmpty. Operand 24424 states and 97885 transitions. [2022-01-18 13:22:47,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:22:47,365 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:22:47,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:22:47,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 13:22:47,365 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:22:47,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:22:47,366 INFO L85 PathProgramCache]: Analyzing trace with hash -578808627, now seen corresponding path program 37 times [2022-01-18 13:22:47,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:22:47,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992923957] [2022-01-18 13:22:47,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:22:47,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:22:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:22:47,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:22:47,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:22:47,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992923957] [2022-01-18 13:22:47,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992923957] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:22:47,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:22:47,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:22:47,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303977090] [2022-01-18 13:22:47,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:22:47,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:22:47,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:22:47,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:22:47,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:22:47,958 INFO L87 Difference]: Start difference. First operand 24424 states and 97885 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:49,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:22:49,605 INFO L93 Difference]: Finished difference Result 55855 states and 219914 transitions. [2022-01-18 13:22:49,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:22:49,605 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:22:49,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:22:49,788 INFO L225 Difference]: With dead ends: 55855 [2022-01-18 13:22:49,788 INFO L226 Difference]: Without dead ends: 55264 [2022-01-18 13:22:49,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=225, Invalid=477, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:22:49,789 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 739 mSDsluCounter, 2865 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:22:49,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [739 Valid, 2725 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:22:49,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55264 states. [2022-01-18 13:22:50,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55264 to 24388. [2022-01-18 13:22:50,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24388 states, 24387 states have (on average 4.0077910362078155) internal successors, (97738), 24387 states have internal predecessors, (97738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:50,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24388 states to 24388 states and 97738 transitions. [2022-01-18 13:22:50,740 INFO L78 Accepts]: Start accepts. Automaton has 24388 states and 97738 transitions. Word has length 117 [2022-01-18 13:22:50,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:22:50,740 INFO L470 AbstractCegarLoop]: Abstraction has 24388 states and 97738 transitions. [2022-01-18 13:22:50,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:50,740 INFO L276 IsEmpty]: Start isEmpty. Operand 24388 states and 97738 transitions. [2022-01-18 13:22:50,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:22:50,786 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:22:50,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:22:50,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 13:22:50,786 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:22:50,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:22:50,787 INFO L85 PathProgramCache]: Analyzing trace with hash -793395329, now seen corresponding path program 38 times [2022-01-18 13:22:50,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:22:50,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625222414] [2022-01-18 13:22:50,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:22:50,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:22:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:22:51,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:22:51,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:22:51,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625222414] [2022-01-18 13:22:51,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625222414] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:22:51,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:22:51,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:22:51,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787398626] [2022-01-18 13:22:51,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:22:51,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:22:51,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:22:51,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:22:51,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:22:51,401 INFO L87 Difference]: Start difference. First operand 24388 states and 97738 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:53,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:22:53,097 INFO L93 Difference]: Finished difference Result 55261 states and 217925 transitions. [2022-01-18 13:22:53,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:22:53,097 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:22:53,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:22:53,297 INFO L225 Difference]: With dead ends: 55261 [2022-01-18 13:22:53,297 INFO L226 Difference]: Without dead ends: 53986 [2022-01-18 13:22:53,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=227, Invalid=475, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:22:53,298 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 583 mSDsluCounter, 3008 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 2848 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:22:53,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [583 Valid, 2848 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1248 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:22:53,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53986 states. [2022-01-18 13:22:53,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53986 to 23884. [2022-01-18 13:22:53,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23884 states, 23883 states have (on average 4.0157434158187835) internal successors, (95908), 23883 states have internal predecessors, (95908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:54,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23884 states to 23884 states and 95908 transitions. [2022-01-18 13:22:54,027 INFO L78 Accepts]: Start accepts. Automaton has 23884 states and 95908 transitions. Word has length 117 [2022-01-18 13:22:54,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:22:54,027 INFO L470 AbstractCegarLoop]: Abstraction has 23884 states and 95908 transitions. [2022-01-18 13:22:54,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:54,027 INFO L276 IsEmpty]: Start isEmpty. Operand 23884 states and 95908 transitions. [2022-01-18 13:22:54,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:22:54,077 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:22:54,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:22:54,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 13:22:54,077 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:22:54,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:22:54,078 INFO L85 PathProgramCache]: Analyzing trace with hash 631923851, now seen corresponding path program 39 times [2022-01-18 13:22:54,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:22:54,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540181209] [2022-01-18 13:22:54,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:22:54,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:22:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:22:54,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:22:54,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:22:54,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540181209] [2022-01-18 13:22:54,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540181209] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:22:54,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:22:54,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:22:54,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89727355] [2022-01-18 13:22:54,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:22:54,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:22:54,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:22:54,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:22:54,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:22:54,943 INFO L87 Difference]: Start difference. First operand 23884 states and 95908 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:56,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:22:56,458 INFO L93 Difference]: Finished difference Result 57463 states and 226337 transitions. [2022-01-18 13:22:56,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:22:56,458 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:22:56,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:22:56,638 INFO L225 Difference]: With dead ends: 57463 [2022-01-18 13:22:56,638 INFO L226 Difference]: Without dead ends: 56869 [2022-01-18 13:22:56,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:22:56,639 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 698 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 2935 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:22:56,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [698 Valid, 2935 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1348 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:22:56,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56869 states. [2022-01-18 13:22:57,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56869 to 24865. [2022-01-18 13:22:57,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24865 states, 24864 states have (on average 4.018500643500643) internal successors, (99916), 24864 states have internal predecessors, (99916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:57,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24865 states to 24865 states and 99916 transitions. [2022-01-18 13:22:57,594 INFO L78 Accepts]: Start accepts. Automaton has 24865 states and 99916 transitions. Word has length 117 [2022-01-18 13:22:57,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:22:57,594 INFO L470 AbstractCegarLoop]: Abstraction has 24865 states and 99916 transitions. [2022-01-18 13:22:57,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:57,594 INFO L276 IsEmpty]: Start isEmpty. Operand 24865 states and 99916 transitions. [2022-01-18 13:22:57,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:22:57,645 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:22:57,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:22:57,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 13:22:57,645 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:22:57,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:22:57,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1964791467, now seen corresponding path program 40 times [2022-01-18 13:22:57,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:22:57,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650561133] [2022-01-18 13:22:57,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:22:57,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:22:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:22:58,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:22:58,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:22:58,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650561133] [2022-01-18 13:22:58,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650561133] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:22:58,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:22:58,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:22:58,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309407719] [2022-01-18 13:22:58,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:22:58,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:22:58,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:22:58,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:22:58,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:22:58,263 INFO L87 Difference]: Start difference. First operand 24865 states and 99916 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:22:59,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:22:59,921 INFO L93 Difference]: Finished difference Result 57451 states and 226262 transitions. [2022-01-18 13:22:59,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:22:59,921 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:22:59,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:23:00,105 INFO L225 Difference]: With dead ends: 57451 [2022-01-18 13:23:00,105 INFO L226 Difference]: Without dead ends: 56824 [2022-01-18 13:23:00,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:23:00,105 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 691 mSDsluCounter, 3066 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 13:23:00,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [691 Valid, 2894 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 13:23:00,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56824 states. [2022-01-18 13:23:00,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56824 to 24820. [2022-01-18 13:23:00,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24820 states, 24819 states have (on average 4.018534187517628) internal successors, (99736), 24819 states have internal predecessors, (99736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:01,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24820 states to 24820 states and 99736 transitions. [2022-01-18 13:23:01,052 INFO L78 Accepts]: Start accepts. Automaton has 24820 states and 99736 transitions. Word has length 117 [2022-01-18 13:23:01,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:23:01,053 INFO L470 AbstractCegarLoop]: Abstraction has 24820 states and 99736 transitions. [2022-01-18 13:23:01,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:01,053 INFO L276 IsEmpty]: Start isEmpty. Operand 24820 states and 99736 transitions. [2022-01-18 13:23:01,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:23:01,104 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:23:01,104 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:23:01,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 13:23:01,105 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:23:01,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:23:01,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1915392599, now seen corresponding path program 41 times [2022-01-18 13:23:01,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:23:01,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572470218] [2022-01-18 13:23:01,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:23:01,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:23:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:23:01,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:23:01,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:23:01,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572470218] [2022-01-18 13:23:01,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572470218] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:23:01,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:23:01,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:23:01,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479069900] [2022-01-18 13:23:01,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:23:01,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:23:01,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:23:01,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:23:01,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:23:01,718 INFO L87 Difference]: Start difference. First operand 24820 states and 99736 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:03,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:23:03,520 INFO L93 Difference]: Finished difference Result 56821 states and 224150 transitions. [2022-01-18 13:23:03,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:23:03,520 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:23:03,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:23:03,704 INFO L225 Difference]: With dead ends: 56821 [2022-01-18 13:23:03,704 INFO L226 Difference]: Without dead ends: 55699 [2022-01-18 13:23:03,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:23:03,704 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 648 mSDsluCounter, 3087 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 2907 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:23:03,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [648 Valid, 2907 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:23:03,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55699 states. [2022-01-18 13:23:04,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55699 to 24685. [2022-01-18 13:23:04,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24685 states, 24684 states have (on average 4.014989466861125) internal successors, (99106), 24684 states have internal predecessors, (99106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:04,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24685 states to 24685 states and 99106 transitions. [2022-01-18 13:23:04,693 INFO L78 Accepts]: Start accepts. Automaton has 24685 states and 99106 transitions. Word has length 117 [2022-01-18 13:23:04,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:23:04,693 INFO L470 AbstractCegarLoop]: Abstraction has 24685 states and 99106 transitions. [2022-01-18 13:23:04,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:04,693 INFO L276 IsEmpty]: Start isEmpty. Operand 24685 states and 99106 transitions. [2022-01-18 13:23:04,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:23:04,743 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:23:04,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:23:04,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 13:23:04,743 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:23:04,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:23:04,744 INFO L85 PathProgramCache]: Analyzing trace with hash -353600917, now seen corresponding path program 42 times [2022-01-18 13:23:04,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:23:04,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234305152] [2022-01-18 13:23:04,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:23:04,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:23:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:23:05,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:23:05,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:23:05,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234305152] [2022-01-18 13:23:05,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234305152] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:23:05,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:23:05,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:23:05,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005678980] [2022-01-18 13:23:05,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:23:05,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:23:05,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:23:05,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:23:05,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:23:05,368 INFO L87 Difference]: Start difference. First operand 24685 states and 99106 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:07,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:23:07,192 INFO L93 Difference]: Finished difference Result 58096 states and 228254 transitions. [2022-01-18 13:23:07,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:23:07,193 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:23:07,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:23:07,395 INFO L225 Difference]: With dead ends: 58096 [2022-01-18 13:23:07,395 INFO L226 Difference]: Without dead ends: 57502 [2022-01-18 13:23:07,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:23:07,396 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 814 mSDsluCounter, 2989 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:23:07,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [814 Valid, 2828 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:23:07,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57502 states. [2022-01-18 13:23:08,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57502 to 24865. [2022-01-18 13:23:08,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24865 states, 24864 states have (on average 4.013071106821107) internal successors, (99781), 24864 states have internal predecessors, (99781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:08,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24865 states to 24865 states and 99781 transitions. [2022-01-18 13:23:08,165 INFO L78 Accepts]: Start accepts. Automaton has 24865 states and 99781 transitions. Word has length 117 [2022-01-18 13:23:08,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:23:08,165 INFO L470 AbstractCegarLoop]: Abstraction has 24865 states and 99781 transitions. [2022-01-18 13:23:08,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:08,165 INFO L276 IsEmpty]: Start isEmpty. Operand 24865 states and 99781 transitions. [2022-01-18 13:23:08,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:23:08,388 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:23:08,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:23:08,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 13:23:08,388 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:23:08,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:23:08,388 INFO L85 PathProgramCache]: Analyzing trace with hash 979266699, now seen corresponding path program 43 times [2022-01-18 13:23:08,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:23:08,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006172666] [2022-01-18 13:23:08,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:23:08,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:23:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:23:08,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:23:08,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:23:08,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006172666] [2022-01-18 13:23:08,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006172666] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:23:08,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:23:08,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:23:08,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946924903] [2022-01-18 13:23:08,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:23:08,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:23:08,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:23:08,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:23:08,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:23:08,968 INFO L87 Difference]: Start difference. First operand 24865 states and 99781 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:10,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:23:10,574 INFO L93 Difference]: Finished difference Result 57499 states and 226247 transitions. [2022-01-18 13:23:10,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:23:10,574 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:23:10,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:23:10,759 INFO L225 Difference]: With dead ends: 57499 [2022-01-18 13:23:10,759 INFO L226 Difference]: Without dead ends: 56872 [2022-01-18 13:23:10,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:23:10,760 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 723 mSDsluCounter, 3091 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 2923 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:23:10,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [723 Valid, 2923 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:23:11,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56872 states. [2022-01-18 13:23:11,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56872 to 24820. [2022-01-18 13:23:11,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24820 states, 24819 states have (on average 4.013094806398324) internal successors, (99601), 24819 states have internal predecessors, (99601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:11,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24820 states to 24820 states and 99601 transitions. [2022-01-18 13:23:11,723 INFO L78 Accepts]: Start accepts. Automaton has 24820 states and 99601 transitions. Word has length 117 [2022-01-18 13:23:11,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:23:11,723 INFO L470 AbstractCegarLoop]: Abstraction has 24820 states and 99601 transitions. [2022-01-18 13:23:11,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:11,723 INFO L276 IsEmpty]: Start isEmpty. Operand 24820 states and 99601 transitions. [2022-01-18 13:23:11,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:23:11,774 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:23:11,774 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:23:11,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 13:23:11,775 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:23:11,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:23:11,775 INFO L85 PathProgramCache]: Analyzing trace with hash -972231255, now seen corresponding path program 44 times [2022-01-18 13:23:11,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:23:11,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553076177] [2022-01-18 13:23:11,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:23:11,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:23:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:23:12,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:23:12,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:23:12,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553076177] [2022-01-18 13:23:12,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553076177] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:23:12,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:23:12,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:23:12,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548092151] [2022-01-18 13:23:12,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:23:12,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:23:12,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:23:12,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:23:12,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:23:12,331 INFO L87 Difference]: Start difference. First operand 24820 states and 99601 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:14,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:23:14,005 INFO L93 Difference]: Finished difference Result 56869 states and 224135 transitions. [2022-01-18 13:23:14,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:23:14,005 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:23:14,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:23:14,183 INFO L225 Difference]: With dead ends: 56869 [2022-01-18 13:23:14,183 INFO L226 Difference]: Without dead ends: 55294 [2022-01-18 13:23:14,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:23:14,184 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 657 mSDsluCounter, 3006 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 2851 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:23:14,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [657 Valid, 2851 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:23:14,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55294 states. [2022-01-18 13:23:15,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55294 to 24280. [2022-01-18 13:23:15,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24280 states, 24279 states have (on average 4.016351579554347) internal successors, (97513), 24279 states have internal predecessors, (97513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:15,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24280 states to 24280 states and 97513 transitions. [2022-01-18 13:23:15,115 INFO L78 Accepts]: Start accepts. Automaton has 24280 states and 97513 transitions. Word has length 117 [2022-01-18 13:23:15,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:23:15,115 INFO L470 AbstractCegarLoop]: Abstraction has 24280 states and 97513 transitions. [2022-01-18 13:23:15,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:15,116 INFO L276 IsEmpty]: Start isEmpty. Operand 24280 states and 97513 transitions. [2022-01-18 13:23:15,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:23:15,160 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:23:15,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:23:15,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 13:23:15,160 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:23:15,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:23:15,161 INFO L85 PathProgramCache]: Analyzing trace with hash 415560427, now seen corresponding path program 45 times [2022-01-18 13:23:15,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:23:15,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629095256] [2022-01-18 13:23:15,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:23:15,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:23:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:23:15,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:23:15,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:23:15,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629095256] [2022-01-18 13:23:15,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629095256] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:23:15,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:23:15,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:23:15,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129642606] [2022-01-18 13:23:15,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:23:15,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:23:15,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:23:15,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:23:15,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:23:15,725 INFO L87 Difference]: Start difference. First operand 24280 states and 97513 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:17,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:23:17,530 INFO L93 Difference]: Finished difference Result 58804 states and 230650 transitions. [2022-01-18 13:23:17,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:23:17,530 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:23:17,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:23:17,737 INFO L225 Difference]: With dead ends: 58804 [2022-01-18 13:23:17,737 INFO L226 Difference]: Without dead ends: 58210 [2022-01-18 13:23:17,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:23:17,738 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 992 mSDsluCounter, 2941 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 2794 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:23:17,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [992 Valid, 2794 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1248 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:23:17,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58210 states. [2022-01-18 13:23:18,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58210 to 24496. [2022-01-18 13:23:18,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24496 states, 24495 states have (on average 4.01498264952031) internal successors, (98347), 24495 states have internal predecessors, (98347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:18,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24496 states to 24496 states and 98347 transitions. [2022-01-18 13:23:18,748 INFO L78 Accepts]: Start accepts. Automaton has 24496 states and 98347 transitions. Word has length 117 [2022-01-18 13:23:18,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:23:18,748 INFO L470 AbstractCegarLoop]: Abstraction has 24496 states and 98347 transitions. [2022-01-18 13:23:18,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:18,748 INFO L276 IsEmpty]: Start isEmpty. Operand 24496 states and 98347 transitions. [2022-01-18 13:23:18,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:23:18,793 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:23:18,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:23:18,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 13:23:18,793 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:23:18,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:23:18,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1748428043, now seen corresponding path program 46 times [2022-01-18 13:23:18,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:23:18,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028938250] [2022-01-18 13:23:18,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:23:18,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:23:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:23:19,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:23:19,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:23:19,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028938250] [2022-01-18 13:23:19,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028938250] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:23:19,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:23:19,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:23:19,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215035289] [2022-01-18 13:23:19,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:23:19,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:23:19,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:23:19,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:23:19,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:23:19,404 INFO L87 Difference]: Start difference. First operand 24496 states and 98347 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:20,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:23:20,908 INFO L93 Difference]: Finished difference Result 58207 states and 228643 transitions. [2022-01-18 13:23:20,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:23:20,908 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:23:20,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:23:21,366 INFO L225 Difference]: With dead ends: 58207 [2022-01-18 13:23:21,366 INFO L226 Difference]: Without dead ends: 57580 [2022-01-18 13:23:21,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:23:21,366 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 890 mSDsluCounter, 2932 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 2783 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:23:21,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [890 Valid, 2783 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:23:21,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57580 states. [2022-01-18 13:23:22,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57580 to 24451. [2022-01-18 13:23:22,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24451 states, 24450 states have (on average 4.015010224948875) internal successors, (98167), 24450 states have internal predecessors, (98167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:22,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24451 states to 24451 states and 98167 transitions. [2022-01-18 13:23:22,111 INFO L78 Accepts]: Start accepts. Automaton has 24451 states and 98167 transitions. Word has length 117 [2022-01-18 13:23:22,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:23:22,112 INFO L470 AbstractCegarLoop]: Abstraction has 24451 states and 98167 transitions. [2022-01-18 13:23:22,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:22,112 INFO L276 IsEmpty]: Start isEmpty. Operand 24451 states and 98167 transitions. [2022-01-18 13:23:22,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:23:22,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:23:22,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:23:22,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 13:23:22,157 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:23:22,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:23:22,158 INFO L85 PathProgramCache]: Analyzing trace with hash -203069911, now seen corresponding path program 47 times [2022-01-18 13:23:22,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:23:22,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226363446] [2022-01-18 13:23:22,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:23:22,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:23:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:23:22,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:23:22,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:23:22,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226363446] [2022-01-18 13:23:22,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226363446] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:23:22,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:23:22,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:23:22,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931236891] [2022-01-18 13:23:22,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:23:22,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:23:22,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:23:22,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:23:22,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:23:22,954 INFO L87 Difference]: Start difference. First operand 24451 states and 98167 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:24,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:23:24,502 INFO L93 Difference]: Finished difference Result 58615 states and 230068 transitions. [2022-01-18 13:23:24,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:23:24,502 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:23:24,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:23:24,696 INFO L225 Difference]: With dead ends: 58615 [2022-01-18 13:23:24,696 INFO L226 Difference]: Without dead ends: 57445 [2022-01-18 13:23:24,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:23:24,696 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 858 mSDsluCounter, 3021 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 2859 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:23:24,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [858 Valid, 2859 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:23:24,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57445 states. [2022-01-18 13:23:25,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57445 to 24316. [2022-01-18 13:23:25,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.015463705531565) internal successors, (97636), 24315 states have internal predecessors, (97636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:25,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97636 transitions. [2022-01-18 13:23:25,660 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97636 transitions. Word has length 117 [2022-01-18 13:23:25,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:23:25,660 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97636 transitions. [2022-01-18 13:23:25,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:25,661 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97636 transitions. [2022-01-18 13:23:25,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:23:25,706 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:23:25,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:23:25,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 13:23:25,706 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:23:25,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:23:25,707 INFO L85 PathProgramCache]: Analyzing trace with hash -604347135, now seen corresponding path program 48 times [2022-01-18 13:23:25,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:23:25,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387971708] [2022-01-18 13:23:25,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:23:25,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:23:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:23:26,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:23:26,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:23:26,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387971708] [2022-01-18 13:23:26,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387971708] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:23:26,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:23:26,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:23:26,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884539468] [2022-01-18 13:23:26,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:23:26,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:23:26,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:23:26,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:23:26,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:23:26,343 INFO L87 Difference]: Start difference. First operand 24316 states and 97636 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:27,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:23:27,981 INFO L93 Difference]: Finished difference Result 58681 states and 230151 transitions. [2022-01-18 13:23:27,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:23:27,981 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:23:27,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:23:28,180 INFO L225 Difference]: With dead ends: 58681 [2022-01-18 13:23:28,180 INFO L226 Difference]: Without dead ends: 58087 [2022-01-18 13:23:28,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:23:28,181 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 819 mSDsluCounter, 3195 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 3013 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:23:28,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [819 Valid, 3013 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:23:28,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58087 states. [2022-01-18 13:23:29,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58087 to 24373. [2022-01-18 13:23:29,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24373 states, 24372 states have (on average 4.013786312161497) internal successors, (97824), 24372 states have internal predecessors, (97824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:29,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24373 states to 24373 states and 97824 transitions. [2022-01-18 13:23:29,124 INFO L78 Accepts]: Start accepts. Automaton has 24373 states and 97824 transitions. Word has length 117 [2022-01-18 13:23:29,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:23:29,125 INFO L470 AbstractCegarLoop]: Abstraction has 24373 states and 97824 transitions. [2022-01-18 13:23:29,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:29,125 INFO L276 IsEmpty]: Start isEmpty. Operand 24373 states and 97824 transitions. [2022-01-18 13:23:29,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:23:29,170 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:23:29,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:23:29,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-18 13:23:29,170 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:23:29,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:23:29,170 INFO L85 PathProgramCache]: Analyzing trace with hash 728520481, now seen corresponding path program 49 times [2022-01-18 13:23:29,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:23:29,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150751008] [2022-01-18 13:23:29,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:23:29,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:23:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:23:29,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:23:29,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:23:29,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150751008] [2022-01-18 13:23:29,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150751008] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:23:29,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:23:29,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:23:29,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29377878] [2022-01-18 13:23:29,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:23:29,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:23:29,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:23:29,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:23:29,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:23:29,743 INFO L87 Difference]: Start difference. First operand 24373 states and 97824 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:31,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:23:31,571 INFO L93 Difference]: Finished difference Result 58669 states and 230076 transitions. [2022-01-18 13:23:31,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:23:31,571 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:23:31,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:23:31,781 INFO L225 Difference]: With dead ends: 58669 [2022-01-18 13:23:31,781 INFO L226 Difference]: Without dead ends: 58042 [2022-01-18 13:23:31,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:23:31,782 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 932 mSDsluCounter, 3003 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 2847 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:23:31,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [932 Valid, 2847 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:23:31,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58042 states. [2022-01-18 13:23:32,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58042 to 24328. [2022-01-18 13:23:32,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24328 states, 24327 states have (on average 4.015168331483537) internal successors, (97677), 24327 states have internal predecessors, (97677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:32,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24328 states to 24328 states and 97677 transitions. [2022-01-18 13:23:32,539 INFO L78 Accepts]: Start accepts. Automaton has 24328 states and 97677 transitions. Word has length 117 [2022-01-18 13:23:32,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:23:32,539 INFO L470 AbstractCegarLoop]: Abstraction has 24328 states and 97677 transitions. [2022-01-18 13:23:32,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:32,539 INFO L276 IsEmpty]: Start isEmpty. Operand 24328 states and 97677 transitions. [2022-01-18 13:23:32,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:23:32,790 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:23:32,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:23:32,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-18 13:23:32,790 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:23:32,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:23:32,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1223049365, now seen corresponding path program 50 times [2022-01-18 13:23:32,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:23:32,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001380891] [2022-01-18 13:23:32,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:23:32,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:23:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:23:33,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:23:33,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:23:33,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001380891] [2022-01-18 13:23:33,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001380891] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:23:33,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:23:33,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:23:33,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636085519] [2022-01-18 13:23:33,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:23:33,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:23:33,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:23:33,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:23:33,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:23:33,394 INFO L87 Difference]: Start difference. First operand 24328 states and 97677 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:34,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:23:34,944 INFO L93 Difference]: Finished difference Result 58633 states and 229986 transitions. [2022-01-18 13:23:34,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:23:34,945 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:23:34,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:23:35,129 INFO L225 Difference]: With dead ends: 58633 [2022-01-18 13:23:35,129 INFO L226 Difference]: Without dead ends: 58039 [2022-01-18 13:23:35,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:23:35,130 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 952 mSDsluCounter, 2927 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:23:35,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [952 Valid, 2776 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:23:35,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58039 states. [2022-01-18 13:23:35,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58039 to 24364. [2022-01-18 13:23:36,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.013791404999385) internal successors, (97788), 24363 states have internal predecessors, (97788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:36,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97788 transitions. [2022-01-18 13:23:36,090 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97788 transitions. Word has length 117 [2022-01-18 13:23:36,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:23:36,090 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97788 transitions. [2022-01-18 13:23:36,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:36,090 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97788 transitions. [2022-01-18 13:23:36,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:23:36,136 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:23:36,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:23:36,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-18 13:23:36,136 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:23:36,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:23:36,137 INFO L85 PathProgramCache]: Analyzing trace with hash -163038271, now seen corresponding path program 51 times [2022-01-18 13:23:36,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:23:36,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263902875] [2022-01-18 13:23:36,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:23:36,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:23:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:23:36,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:23:36,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:23:36,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263902875] [2022-01-18 13:23:36,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263902875] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:23:36,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:23:36,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:23:36,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785051584] [2022-01-18 13:23:36,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:23:36,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:23:36,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:23:36,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:23:36,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:23:36,769 INFO L87 Difference]: Start difference. First operand 24364 states and 97788 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:38,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:23:38,339 INFO L93 Difference]: Finished difference Result 58144 states and 228393 transitions. [2022-01-18 13:23:38,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:23:38,339 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:23:38,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:23:38,520 INFO L225 Difference]: With dead ends: 58144 [2022-01-18 13:23:38,520 INFO L226 Difference]: Without dead ends: 57553 [2022-01-18 13:23:38,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:23:38,521 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 883 mSDsluCounter, 2952 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 2799 SdHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:23:38,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [883 Valid, 2799 Invalid, 1302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:23:38,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57553 states. [2022-01-18 13:23:39,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57553 to 24328. [2022-01-18 13:23:39,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24328 states, 24327 states have (on average 4.014675052410902) internal successors, (97665), 24327 states have internal predecessors, (97665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:39,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24328 states to 24328 states and 97665 transitions. [2022-01-18 13:23:39,455 INFO L78 Accepts]: Start accepts. Automaton has 24328 states and 97665 transitions. Word has length 117 [2022-01-18 13:23:39,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:23:39,455 INFO L470 AbstractCegarLoop]: Abstraction has 24328 states and 97665 transitions. [2022-01-18 13:23:39,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:39,455 INFO L276 IsEmpty]: Start isEmpty. Operand 24328 states and 97665 transitions. [2022-01-18 13:23:39,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:23:39,499 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:23:39,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:23:39,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-18 13:23:39,500 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:23:39,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:23:39,500 INFO L85 PathProgramCache]: Analyzing trace with hash -770873973, now seen corresponding path program 52 times [2022-01-18 13:23:39,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:23:39,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737759485] [2022-01-18 13:23:39,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:23:39,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:23:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:23:40,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:23:40,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:23:40,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737759485] [2022-01-18 13:23:40,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737759485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:23:40,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:23:40,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:23:40,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475392927] [2022-01-18 13:23:40,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:23:40,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:23:40,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:23:40,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:23:40,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:23:40,020 INFO L87 Difference]: Start difference. First operand 24328 states and 97665 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:41,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:23:41,776 INFO L93 Difference]: Finished difference Result 57892 states and 227460 transitions. [2022-01-18 13:23:41,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:23:41,777 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:23:41,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:23:41,975 INFO L225 Difference]: With dead ends: 57892 [2022-01-18 13:23:41,975 INFO L226 Difference]: Without dead ends: 57310 [2022-01-18 13:23:41,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:23:41,975 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 844 mSDsluCounter, 2937 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 2786 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:23:41,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [844 Valid, 2786 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:23:42,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57310 states. [2022-01-18 13:23:42,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57310 to 24364. [2022-01-18 13:23:42,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.013298854820835) internal successors, (97776), 24363 states have internal predecessors, (97776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:43,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97776 transitions. [2022-01-18 13:23:43,005 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97776 transitions. Word has length 117 [2022-01-18 13:23:43,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:23:43,005 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97776 transitions. [2022-01-18 13:23:43,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:43,005 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97776 transitions. [2022-01-18 13:23:43,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:23:43,055 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:23:43,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:23:43,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-18 13:23:43,055 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:23:43,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:23:43,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1841567201, now seen corresponding path program 53 times [2022-01-18 13:23:43,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:23:43,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404544008] [2022-01-18 13:23:43,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:23:43,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:23:43,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:23:43,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:23:43,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:23:43,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404544008] [2022-01-18 13:23:43,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404544008] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:23:43,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:23:43,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:23:43,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673056950] [2022-01-18 13:23:43,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:23:43,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:23:43,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:23:43,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:23:43,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:23:43,615 INFO L87 Difference]: Start difference. First operand 24364 states and 97776 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:45,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:23:45,186 INFO L93 Difference]: Finished difference Result 57415 states and 225897 transitions. [2022-01-18 13:23:45,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:23:45,186 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:23:45,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:23:45,369 INFO L225 Difference]: With dead ends: 57415 [2022-01-18 13:23:45,369 INFO L226 Difference]: Without dead ends: 56812 [2022-01-18 13:23:45,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:23:45,370 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 852 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 2719 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:23:45,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [852 Valid, 2719 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:23:45,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56812 states. [2022-01-18 13:23:46,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56812 to 24316. [2022-01-18 13:23:46,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.0149701830146) internal successors, (97624), 24315 states have internal predecessors, (97624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:46,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97624 transitions. [2022-01-18 13:23:46,293 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97624 transitions. Word has length 117 [2022-01-18 13:23:46,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:23:46,293 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97624 transitions. [2022-01-18 13:23:46,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:46,293 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97624 transitions. [2022-01-18 13:23:46,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:23:46,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:23:46,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:23:46,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-18 13:23:46,343 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:23:46,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:23:46,344 INFO L85 PathProgramCache]: Analyzing trace with hash 2091997439, now seen corresponding path program 54 times [2022-01-18 13:23:46,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:23:46,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559300608] [2022-01-18 13:23:46,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:23:46,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:23:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:23:46,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:23:46,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:23:46,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559300608] [2022-01-18 13:23:46,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559300608] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:23:46,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:23:46,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:23:46,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547709729] [2022-01-18 13:23:46,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:23:46,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:23:46,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:23:46,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:23:46,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:23:46,873 INFO L87 Difference]: Start difference. First operand 24316 states and 97624 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:48,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:23:48,440 INFO L93 Difference]: Finished difference Result 57262 states and 225313 transitions. [2022-01-18 13:23:48,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:23:48,441 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:23:48,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:23:48,626 INFO L225 Difference]: With dead ends: 57262 [2022-01-18 13:23:48,627 INFO L226 Difference]: Without dead ends: 56227 [2022-01-18 13:23:48,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:23:48,627 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 766 mSDsluCounter, 2801 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 2676 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:23:48,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 2676 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:23:48,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56227 states. [2022-01-18 13:23:49,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56227 to 24424. [2022-01-18 13:23:49,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24424 states, 24423 states have (on average 4.010850427875363) internal successors, (97957), 24423 states have internal predecessors, (97957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:49,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24424 states to 24424 states and 97957 transitions. [2022-01-18 13:23:49,603 INFO L78 Accepts]: Start accepts. Automaton has 24424 states and 97957 transitions. Word has length 117 [2022-01-18 13:23:49,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:23:49,603 INFO L470 AbstractCegarLoop]: Abstraction has 24424 states and 97957 transitions. [2022-01-18 13:23:49,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:49,603 INFO L276 IsEmpty]: Start isEmpty. Operand 24424 states and 97957 transitions. [2022-01-18 13:23:49,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:23:49,651 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:23:49,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:23:49,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-18 13:23:49,652 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:23:49,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:23:49,652 INFO L85 PathProgramCache]: Analyzing trace with hash -157660119, now seen corresponding path program 55 times [2022-01-18 13:23:49,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:23:49,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869473459] [2022-01-18 13:23:49,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:23:49,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:23:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:23:50,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:23:50,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:23:50,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869473459] [2022-01-18 13:23:50,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869473459] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:23:50,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:23:50,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:23:50,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146898204] [2022-01-18 13:23:50,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:23:50,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:23:50,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:23:50,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:23:50,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:23:50,261 INFO L87 Difference]: Start difference. First operand 24424 states and 97957 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:51,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:23:51,954 INFO L93 Difference]: Finished difference Result 56818 states and 223657 transitions. [2022-01-18 13:23:51,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:23:51,954 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:23:51,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:23:52,159 INFO L225 Difference]: With dead ends: 56818 [2022-01-18 13:23:52,159 INFO L226 Difference]: Without dead ends: 56224 [2022-01-18 13:23:52,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:23:52,160 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 781 mSDsluCounter, 2919 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:23:52,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [781 Valid, 2769 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:23:52,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56224 states. [2022-01-18 13:23:52,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56224 to 24460. [2022-01-18 13:23:52,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24460 states, 24459 states have (on average 4.009485261049103) internal successors, (98068), 24459 states have internal predecessors, (98068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:53,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24460 states to 24460 states and 98068 transitions. [2022-01-18 13:23:53,203 INFO L78 Accepts]: Start accepts. Automaton has 24460 states and 98068 transitions. Word has length 117 [2022-01-18 13:23:53,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:23:53,203 INFO L470 AbstractCegarLoop]: Abstraction has 24460 states and 98068 transitions. [2022-01-18 13:23:53,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:53,203 INFO L276 IsEmpty]: Start isEmpty. Operand 24460 states and 98068 transitions. [2022-01-18 13:23:53,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:23:53,267 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:23:53,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:23:53,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-18 13:23:53,268 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:23:53,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:23:53,268 INFO L85 PathProgramCache]: Analyzing trace with hash 902350975, now seen corresponding path program 56 times [2022-01-18 13:23:53,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:23:53,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213428829] [2022-01-18 13:23:53,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:23:53,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:23:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:23:53,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:23:53,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:23:53,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213428829] [2022-01-18 13:23:53,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213428829] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:23:53,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:23:53,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:23:53,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242845858] [2022-01-18 13:23:53,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:23:53,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:23:53,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:23:53,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:23:53,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:23:53,890 INFO L87 Difference]: Start difference. First operand 24460 states and 98068 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:55,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:23:55,398 INFO L93 Difference]: Finished difference Result 56221 states and 221659 transitions. [2022-01-18 13:23:55,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:23:55,398 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:23:55,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:23:55,587 INFO L225 Difference]: With dead ends: 56221 [2022-01-18 13:23:55,588 INFO L226 Difference]: Without dead ends: 55486 [2022-01-18 13:23:55,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:23:55,588 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 579 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 2995 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:23:55,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [579 Valid, 2995 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:23:55,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55486 states. [2022-01-18 13:23:56,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55486 to 24280. [2022-01-18 13:23:56,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24280 states, 24279 states have (on average 4.014868816672845) internal successors, (97477), 24279 states have internal predecessors, (97477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:56,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24280 states to 24280 states and 97477 transitions. [2022-01-18 13:23:56,550 INFO L78 Accepts]: Start accepts. Automaton has 24280 states and 97477 transitions. Word has length 117 [2022-01-18 13:23:56,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:23:56,551 INFO L470 AbstractCegarLoop]: Abstraction has 24280 states and 97477 transitions. [2022-01-18 13:23:56,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:56,551 INFO L276 IsEmpty]: Start isEmpty. Operand 24280 states and 97477 transitions. [2022-01-18 13:23:56,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:23:56,596 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:23:56,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:23:56,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-18 13:23:56,597 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:23:56,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:23:56,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1164415243, now seen corresponding path program 57 times [2022-01-18 13:23:56,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:23:56,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073020120] [2022-01-18 13:23:56,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:23:56,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:23:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:23:57,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:23:57,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:23:57,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073020120] [2022-01-18 13:23:57,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073020120] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:23:57,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:23:57,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:23:57,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151400652] [2022-01-18 13:23:57,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:23:57,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:23:57,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:23:57,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:23:57,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:23:57,179 INFO L87 Difference]: Start difference. First operand 24280 states and 97477 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:23:58,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:23:58,987 INFO L93 Difference]: Finished difference Result 58171 states and 228562 transitions. [2022-01-18 13:23:58,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:23:58,987 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:23:58,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:23:59,171 INFO L225 Difference]: With dead ends: 58171 [2022-01-18 13:23:59,171 INFO L226 Difference]: Without dead ends: 57577 [2022-01-18 13:23:59,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:23:59,171 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 844 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 2853 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:23:59,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [844 Valid, 2853 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:23:59,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57577 states. [2022-01-18 13:23:59,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57577 to 24496. [2022-01-18 13:24:00,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24496 states, 24495 states have (on average 4.013512961828945) internal successors, (98311), 24495 states have internal predecessors, (98311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:00,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24496 states to 24496 states and 98311 transitions. [2022-01-18 13:24:00,086 INFO L78 Accepts]: Start accepts. Automaton has 24496 states and 98311 transitions. Word has length 117 [2022-01-18 13:24:00,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:00,086 INFO L470 AbstractCegarLoop]: Abstraction has 24496 states and 98311 transitions. [2022-01-18 13:24:00,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:00,086 INFO L276 IsEmpty]: Start isEmpty. Operand 24496 states and 98311 transitions. [2022-01-18 13:24:00,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:24:00,132 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:00,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:24:00,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-18 13:24:00,133 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:24:00,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:00,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1797684437, now seen corresponding path program 58 times [2022-01-18 13:24:00,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:00,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054927791] [2022-01-18 13:24:00,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:00,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:00,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:00,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:00,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054927791] [2022-01-18 13:24:00,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054927791] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:00,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:00,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:24:00,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108648436] [2022-01-18 13:24:00,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:00,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:24:00,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:00,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:24:00,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:24:00,688 INFO L87 Difference]: Start difference. First operand 24496 states and 98311 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:02,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:02,586 INFO L93 Difference]: Finished difference Result 58159 states and 228487 transitions. [2022-01-18 13:24:02,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:24:02,586 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:24:02,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:02,797 INFO L225 Difference]: With dead ends: 58159 [2022-01-18 13:24:02,797 INFO L226 Difference]: Without dead ends: 57532 [2022-01-18 13:24:02,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:24:02,798 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 853 mSDsluCounter, 2968 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:02,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [853 Valid, 2813 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1248 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:24:02,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57532 states. [2022-01-18 13:24:03,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57532 to 24451. [2022-01-18 13:24:03,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24451 states, 24450 states have (on average 4.013537832310838) internal successors, (98131), 24450 states have internal predecessors, (98131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:03,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24451 states to 24451 states and 98131 transitions. [2022-01-18 13:24:03,864 INFO L78 Accepts]: Start accepts. Automaton has 24451 states and 98131 transitions. Word has length 117 [2022-01-18 13:24:03,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:03,864 INFO L470 AbstractCegarLoop]: Abstraction has 24451 states and 98131 transitions. [2022-01-18 13:24:03,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:03,864 INFO L276 IsEmpty]: Start isEmpty. Operand 24451 states and 98131 transitions. [2022-01-18 13:24:03,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:24:03,911 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:03,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:24:03,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-18 13:24:03,911 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:24:03,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:03,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1382901207, now seen corresponding path program 59 times [2022-01-18 13:24:03,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:03,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463824651] [2022-01-18 13:24:03,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:03,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:04,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:04,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:04,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463824651] [2022-01-18 13:24:04,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463824651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:04,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:04,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:24:04,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169595663] [2022-01-18 13:24:04,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:04,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:24:04,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:04,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:24:04,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:24:04,541 INFO L87 Difference]: Start difference. First operand 24451 states and 98131 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:06,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:06,108 INFO L93 Difference]: Finished difference Result 58519 states and 229792 transitions. [2022-01-18 13:24:06,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:24:06,108 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:24:06,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:06,544 INFO L225 Difference]: With dead ends: 58519 [2022-01-18 13:24:06,544 INFO L226 Difference]: Without dead ends: 57397 [2022-01-18 13:24:06,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:24:06,544 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 795 mSDsluCounter, 3075 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 2904 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:06,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [795 Valid, 2904 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:24:06,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57397 states. [2022-01-18 13:24:07,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57397 to 24316. [2022-01-18 13:24:07,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.01398313798067) internal successors, (97600), 24315 states have internal predecessors, (97600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:07,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97600 transitions. [2022-01-18 13:24:07,308 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97600 transitions. Word has length 117 [2022-01-18 13:24:07,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:07,309 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97600 transitions. [2022-01-18 13:24:07,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:07,309 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97600 transitions. [2022-01-18 13:24:07,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:24:07,355 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:07,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:24:07,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-18 13:24:07,355 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:24:07,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:07,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1676162849, now seen corresponding path program 60 times [2022-01-18 13:24:07,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:07,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851020350] [2022-01-18 13:24:07,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:07,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:08,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:08,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:08,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851020350] [2022-01-18 13:24:08,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851020350] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:08,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:08,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:24:08,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731706083] [2022-01-18 13:24:08,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:08,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:24:08,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:08,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:24:08,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:24:08,078 INFO L87 Difference]: Start difference. First operand 24316 states and 97600 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:09,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:09,693 INFO L93 Difference]: Finished difference Result 58633 states and 229995 transitions. [2022-01-18 13:24:09,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:24:09,693 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:24:09,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:09,890 INFO L225 Difference]: With dead ends: 58633 [2022-01-18 13:24:09,891 INFO L226 Difference]: Without dead ends: 58039 [2022-01-18 13:24:09,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:24:09,891 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 896 mSDsluCounter, 3028 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:09,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [896 Valid, 2872 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:24:09,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58039 states. [2022-01-18 13:24:10,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58039 to 24373. [2022-01-18 13:24:10,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24373 states, 24372 states have (on average 4.012309207287051) internal successors, (97788), 24372 states have internal predecessors, (97788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:10,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24373 states to 24373 states and 97788 transitions. [2022-01-18 13:24:10,870 INFO L78 Accepts]: Start accepts. Automaton has 24373 states and 97788 transitions. Word has length 117 [2022-01-18 13:24:10,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:10,870 INFO L470 AbstractCegarLoop]: Abstraction has 24373 states and 97788 transitions. [2022-01-18 13:24:10,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:10,870 INFO L276 IsEmpty]: Start isEmpty. Operand 24373 states and 97788 transitions. [2022-01-18 13:24:10,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:24:10,915 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:10,915 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:24:10,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-18 13:24:10,915 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:24:10,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:10,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1285936831, now seen corresponding path program 61 times [2022-01-18 13:24:10,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:10,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134388401] [2022-01-18 13:24:10,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:10,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:11,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:11,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:11,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134388401] [2022-01-18 13:24:11,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134388401] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:11,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:11,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:24:11,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998329350] [2022-01-18 13:24:11,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:11,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:24:11,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:11,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:24:11,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:24:11,528 INFO L87 Difference]: Start difference. First operand 24373 states and 97788 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:13,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:13,224 INFO L93 Difference]: Finished difference Result 58621 states and 229920 transitions. [2022-01-18 13:24:13,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:24:13,225 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:24:13,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:13,417 INFO L225 Difference]: With dead ends: 58621 [2022-01-18 13:24:13,417 INFO L226 Difference]: Without dead ends: 57994 [2022-01-18 13:24:13,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:24:13,419 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 804 mSDsluCounter, 3128 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:13,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [804 Valid, 2950 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 13:24:13,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57994 states. [2022-01-18 13:24:14,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57994 to 24328. [2022-01-18 13:24:14,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24328 states, 24327 states have (on average 4.01368849426563) internal successors, (97641), 24327 states have internal predecessors, (97641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:14,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24328 states to 24328 states and 97641 transitions. [2022-01-18 13:24:14,415 INFO L78 Accepts]: Start accepts. Automaton has 24328 states and 97641 transitions. Word has length 117 [2022-01-18 13:24:14,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:14,415 INFO L470 AbstractCegarLoop]: Abstraction has 24328 states and 97641 transitions. [2022-01-18 13:24:14,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:14,415 INFO L276 IsEmpty]: Start isEmpty. Operand 24328 states and 97641 transitions. [2022-01-18 13:24:14,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:24:14,459 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:14,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:24:14,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-18 13:24:14,460 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:24:14,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:14,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1057460619, now seen corresponding path program 62 times [2022-01-18 13:24:14,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:14,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618121236] [2022-01-18 13:24:14,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:14,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:15,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:15,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:15,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618121236] [2022-01-18 13:24:15,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618121236] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:15,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:15,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:24:15,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595104775] [2022-01-18 13:24:15,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:15,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:24:15,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:15,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:24:15,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:24:15,067 INFO L87 Difference]: Start difference. First operand 24328 states and 97641 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:16,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:16,522 INFO L93 Difference]: Finished difference Result 57856 states and 227346 transitions. [2022-01-18 13:24:16,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:24:16,522 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:24:16,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:17,000 INFO L225 Difference]: With dead ends: 57856 [2022-01-18 13:24:17,000 INFO L226 Difference]: Without dead ends: 57262 [2022-01-18 13:24:17,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:24:17,001 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 730 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 2925 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:17,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [730 Valid, 2925 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:24:17,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57262 states. [2022-01-18 13:24:17,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57262 to 24364. [2022-01-18 13:24:17,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.012313754463736) internal successors, (97752), 24363 states have internal predecessors, (97752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:17,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97752 transitions. [2022-01-18 13:24:17,734 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97752 transitions. Word has length 117 [2022-01-18 13:24:17,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:17,734 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97752 transitions. [2022-01-18 13:24:17,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:17,734 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97752 transitions. [2022-01-18 13:24:17,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:24:17,780 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:17,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:24:17,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-18 13:24:17,780 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:24:17,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:17,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2117471713, now seen corresponding path program 63 times [2022-01-18 13:24:17,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:17,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132638157] [2022-01-18 13:24:17,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:17,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:18,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:18,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:18,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132638157] [2022-01-18 13:24:18,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132638157] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:18,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:18,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:24:18,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91064918] [2022-01-18 13:24:18,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:18,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:24:18,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:18,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:24:18,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:24:18,493 INFO L87 Difference]: Start difference. First operand 24364 states and 97752 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:19,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:19,985 INFO L93 Difference]: Finished difference Result 57367 states and 225753 transitions. [2022-01-18 13:24:19,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:24:19,985 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:24:19,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:20,165 INFO L225 Difference]: With dead ends: 57367 [2022-01-18 13:24:20,165 INFO L226 Difference]: Without dead ends: 56776 [2022-01-18 13:24:20,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:24:20,166 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 718 mSDsluCounter, 3042 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:20,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [718 Valid, 2872 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:24:20,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56776 states. [2022-01-18 13:24:20,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56776 to 24328. [2022-01-18 13:24:21,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24328 states, 24327 states have (on average 4.0131952151929955) internal successors, (97629), 24327 states have internal predecessors, (97629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:21,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24328 states to 24328 states and 97629 transitions. [2022-01-18 13:24:21,090 INFO L78 Accepts]: Start accepts. Automaton has 24328 states and 97629 transitions. Word has length 117 [2022-01-18 13:24:21,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:21,091 INFO L470 AbstractCegarLoop]: Abstraction has 24328 states and 97629 transitions. [2022-01-18 13:24:21,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:21,091 INFO L276 IsEmpty]: Start isEmpty. Operand 24328 states and 97629 transitions. [2022-01-18 13:24:21,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:24:21,136 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:21,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:24:21,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-18 13:24:21,137 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:24:21,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:21,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1509636011, now seen corresponding path program 64 times [2022-01-18 13:24:21,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:21,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172325225] [2022-01-18 13:24:21,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:21,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:21,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:21,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:21,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172325225] [2022-01-18 13:24:21,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172325225] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:21,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:21,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:24:21,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99380988] [2022-01-18 13:24:21,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:21,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:24:21,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:21,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:24:21,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:24:21,657 INFO L87 Difference]: Start difference. First operand 24328 states and 97629 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:23,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:23,405 INFO L93 Difference]: Finished difference Result 57952 states and 227709 transitions. [2022-01-18 13:24:23,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:24:23,405 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:24:23,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:23,593 INFO L225 Difference]: With dead ends: 57952 [2022-01-18 13:24:23,593 INFO L226 Difference]: Without dead ends: 57370 [2022-01-18 13:24:23,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:24:23,593 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 825 mSDsluCounter, 2941 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 2781 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:23,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [825 Valid, 2781 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:24:23,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57370 states. [2022-01-18 13:24:24,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57370 to 24364. [2022-01-18 13:24:24,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.011821204285186) internal successors, (97740), 24363 states have internal predecessors, (97740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:24,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97740 transitions. [2022-01-18 13:24:24,600 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97740 transitions. Word has length 117 [2022-01-18 13:24:24,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:24,600 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97740 transitions. [2022-01-18 13:24:24,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:24,600 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97740 transitions. [2022-01-18 13:24:24,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:24:24,645 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:24,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:24:24,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-18 13:24:24,645 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:24:24,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:24,646 INFO L85 PathProgramCache]: Analyzing trace with hash -172890111, now seen corresponding path program 65 times [2022-01-18 13:24:24,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:24,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612130995] [2022-01-18 13:24:24,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:24,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:25,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:25,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:25,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612130995] [2022-01-18 13:24:25,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612130995] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:25,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:25,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:24:25,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234784361] [2022-01-18 13:24:25,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:25,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:24:25,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:25,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:24:25,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:24:25,256 INFO L87 Difference]: Start difference. First operand 24364 states and 97740 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:26,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:26,723 INFO L93 Difference]: Finished difference Result 57367 states and 225741 transitions. [2022-01-18 13:24:26,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:24:26,724 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:24:26,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:27,169 INFO L225 Difference]: With dead ends: 57367 [2022-01-18 13:24:27,170 INFO L226 Difference]: Without dead ends: 56764 [2022-01-18 13:24:27,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:24:27,170 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 671 mSDsluCounter, 2981 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:27,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [671 Valid, 2815 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:24:27,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56764 states. [2022-01-18 13:24:27,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56764 to 24316. [2022-01-18 13:24:27,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.013489615463706) internal successors, (97588), 24315 states have internal predecessors, (97588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:27,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97588 transitions. [2022-01-18 13:24:27,869 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97588 transitions. Word has length 117 [2022-01-18 13:24:27,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:27,869 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97588 transitions. [2022-01-18 13:24:27,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:27,869 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97588 transitions. [2022-01-18 13:24:27,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:24:27,913 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:27,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:24:27,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-18 13:24:27,914 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:24:27,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:27,916 INFO L85 PathProgramCache]: Analyzing trace with hash -619489025, now seen corresponding path program 66 times [2022-01-18 13:24:27,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:27,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888014529] [2022-01-18 13:24:27,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:27,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:28,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:28,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:28,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888014529] [2022-01-18 13:24:28,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888014529] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:28,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:28,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:24:28,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349775329] [2022-01-18 13:24:28,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:28,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:24:28,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:28,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:24:28,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:24:28,438 INFO L87 Difference]: Start difference. First operand 24316 states and 97588 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:30,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:30,219 INFO L93 Difference]: Finished difference Result 57202 states and 225127 transitions. [2022-01-18 13:24:30,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:24:30,219 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:24:30,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:30,395 INFO L225 Difference]: With dead ends: 57202 [2022-01-18 13:24:30,396 INFO L226 Difference]: Without dead ends: 56215 [2022-01-18 13:24:30,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:24:30,396 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 657 mSDsluCounter, 3129 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 2937 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:30,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [657 Valid, 2937 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 13:24:30,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56215 states. [2022-01-18 13:24:31,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56215 to 24424. [2022-01-18 13:24:31,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24424 states, 24423 states have (on average 4.009376407484748) internal successors, (97921), 24423 states have internal predecessors, (97921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:31,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24424 states to 24424 states and 97921 transitions. [2022-01-18 13:24:31,427 INFO L78 Accepts]: Start accepts. Automaton has 24424 states and 97921 transitions. Word has length 117 [2022-01-18 13:24:31,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:31,427 INFO L470 AbstractCegarLoop]: Abstraction has 24424 states and 97921 transitions. [2022-01-18 13:24:31,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:31,427 INFO L276 IsEmpty]: Start isEmpty. Operand 24424 states and 97921 transitions. [2022-01-18 13:24:31,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:24:31,476 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:31,476 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:24:31,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-18 13:24:31,476 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:24:31,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:31,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1988454359, now seen corresponding path program 67 times [2022-01-18 13:24:31,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:31,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987221214] [2022-01-18 13:24:31,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:31,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:32,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:32,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:32,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987221214] [2022-01-18 13:24:32,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987221214] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:32,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:32,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:24:32,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491338211] [2022-01-18 13:24:32,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:32,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:24:32,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:32,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:24:32,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:24:32,153 INFO L87 Difference]: Start difference. First operand 24424 states and 97921 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:33,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:33,910 INFO L93 Difference]: Finished difference Result 56806 states and 223591 transitions. [2022-01-18 13:24:33,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:24:33,911 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:24:33,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:34,110 INFO L225 Difference]: With dead ends: 56806 [2022-01-18 13:24:34,110 INFO L226 Difference]: Without dead ends: 56224 [2022-01-18 13:24:34,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:24:34,111 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 714 mSDsluCounter, 3050 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:34,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [714 Valid, 2873 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:24:34,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56224 states. [2022-01-18 13:24:34,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56224 to 24460. [2022-01-18 13:24:34,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24460 states, 24459 states have (on average 4.008013410196655) internal successors, (98032), 24459 states have internal predecessors, (98032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:35,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24460 states to 24460 states and 98032 transitions. [2022-01-18 13:24:35,118 INFO L78 Accepts]: Start accepts. Automaton has 24460 states and 98032 transitions. Word has length 117 [2022-01-18 13:24:35,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:35,118 INFO L470 AbstractCegarLoop]: Abstraction has 24460 states and 98032 transitions. [2022-01-18 13:24:35,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:35,118 INFO L276 IsEmpty]: Start isEmpty. Operand 24460 states and 98032 transitions. [2022-01-18 13:24:35,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:24:35,167 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:35,167 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:24:35,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-18 13:24:35,168 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:24:35,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:35,168 INFO L85 PathProgramCache]: Analyzing trace with hash 623986815, now seen corresponding path program 68 times [2022-01-18 13:24:35,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:35,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771429655] [2022-01-18 13:24:35,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:35,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:35,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:35,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:35,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771429655] [2022-01-18 13:24:35,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771429655] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:35,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:35,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:24:35,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247743089] [2022-01-18 13:24:35,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:35,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:24:35,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:35,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:24:35,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:24:35,729 INFO L87 Difference]: Start difference. First operand 24460 states and 98032 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:37,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:37,245 INFO L93 Difference]: Finished difference Result 56221 states and 221623 transitions. [2022-01-18 13:24:37,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:24:37,245 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:24:37,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:37,420 INFO L225 Difference]: With dead ends: 56221 [2022-01-18 13:24:37,420 INFO L226 Difference]: Without dead ends: 55378 [2022-01-18 13:24:37,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:24:37,421 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 634 mSDsluCounter, 3055 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:37,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [634 Valid, 2882 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:24:37,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55378 states. [2022-01-18 13:24:38,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55378 to 24172. [2022-01-18 13:24:38,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24172 states, 24171 states have (on average 4.014562905961689) internal successors, (97036), 24171 states have internal predecessors, (97036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:38,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24172 states to 24172 states and 97036 transitions. [2022-01-18 13:24:38,326 INFO L78 Accepts]: Start accepts. Automaton has 24172 states and 97036 transitions. Word has length 117 [2022-01-18 13:24:38,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:38,326 INFO L470 AbstractCegarLoop]: Abstraction has 24172 states and 97036 transitions. [2022-01-18 13:24:38,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:38,326 INFO L276 IsEmpty]: Start isEmpty. Operand 24172 states and 97036 transitions. [2022-01-18 13:24:38,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:24:38,371 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:38,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:24:38,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-18 13:24:38,371 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:24:38,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:38,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1632629833, now seen corresponding path program 69 times [2022-01-18 13:24:38,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:38,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594919060] [2022-01-18 13:24:38,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:38,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:38,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:38,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:38,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594919060] [2022-01-18 13:24:38,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594919060] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:38,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:38,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:24:38,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766807527] [2022-01-18 13:24:38,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:38,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:24:38,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:38,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:24:38,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:24:38,963 INFO L87 Difference]: Start difference. First operand 24172 states and 97036 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:40,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:40,778 INFO L93 Difference]: Finished difference Result 59503 states and 233692 transitions. [2022-01-18 13:24:40,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 13:24:40,778 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:24:40,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:40,971 INFO L225 Difference]: With dead ends: 59503 [2022-01-18 13:24:40,971 INFO L226 Difference]: Without dead ends: 58909 [2022-01-18 13:24:40,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=275, Invalid=595, Unknown=0, NotChecked=0, Total=870 [2022-01-18 13:24:40,972 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 827 mSDsluCounter, 3191 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 3033 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:40,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [827 Valid, 3033 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1346 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 13:24:41,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58909 states. [2022-01-18 13:24:41,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58909 to 24460. [2022-01-18 13:24:41,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24460 states, 24459 states have (on average 4.014391430557259) internal successors, (98188), 24459 states have internal predecessors, (98188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:41,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24460 states to 24460 states and 98188 transitions. [2022-01-18 13:24:41,967 INFO L78 Accepts]: Start accepts. Automaton has 24460 states and 98188 transitions. Word has length 117 [2022-01-18 13:24:41,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:41,967 INFO L470 AbstractCegarLoop]: Abstraction has 24460 states and 98188 transitions. [2022-01-18 13:24:41,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:41,967 INFO L276 IsEmpty]: Start isEmpty. Operand 24460 states and 98188 transitions. [2022-01-18 13:24:42,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:24:42,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:42,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:24:42,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-18 13:24:42,013 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:24:42,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:42,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1329469847, now seen corresponding path program 70 times [2022-01-18 13:24:42,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:42,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176020920] [2022-01-18 13:24:42,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:42,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:42,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:42,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:42,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176020920] [2022-01-18 13:24:42,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176020920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:42,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:42,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:24:42,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505349530] [2022-01-18 13:24:42,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:42,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:24:42,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:42,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:24:42,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:24:42,621 INFO L87 Difference]: Start difference. First operand 24460 states and 98188 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:44,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:44,526 INFO L93 Difference]: Finished difference Result 58906 states and 231685 transitions. [2022-01-18 13:24:44,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 13:24:44,527 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:24:44,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:44,723 INFO L225 Difference]: With dead ends: 58906 [2022-01-18 13:24:44,723 INFO L226 Difference]: Without dead ends: 58279 [2022-01-18 13:24:44,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=296, Invalid=634, Unknown=0, NotChecked=0, Total=930 [2022-01-18 13:24:44,724 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 773 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:44,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [773 Valid, 2824 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:24:44,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58279 states. [2022-01-18 13:24:45,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58279 to 24415. [2022-01-18 13:24:45,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24415 states, 24414 states have (on average 4.01441795690997) internal successors, (98008), 24414 states have internal predecessors, (98008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:45,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24415 states to 24415 states and 98008 transitions. [2022-01-18 13:24:45,765 INFO L78 Accepts]: Start accepts. Automaton has 24415 states and 98008 transitions. Word has length 117 [2022-01-18 13:24:45,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:45,765 INFO L470 AbstractCegarLoop]: Abstraction has 24415 states and 98008 transitions. [2022-01-18 13:24:45,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:45,765 INFO L276 IsEmpty]: Start isEmpty. Operand 24415 states and 98008 transitions. [2022-01-18 13:24:45,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:24:45,810 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:45,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:24:45,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-18 13:24:45,810 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:24:45,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:45,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1013999495, now seen corresponding path program 71 times [2022-01-18 13:24:45,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:45,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379048693] [2022-01-18 13:24:45,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:45,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:46,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:46,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:46,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379048693] [2022-01-18 13:24:46,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379048693] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:46,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:46,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:24:46,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562447537] [2022-01-18 13:24:46,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:46,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:24:46,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:46,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:24:46,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:24:46,405 INFO L87 Difference]: Start difference. First operand 24415 states and 98008 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:48,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:48,042 INFO L93 Difference]: Finished difference Result 58774 states and 231085 transitions. [2022-01-18 13:24:48,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:24:48,043 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:24:48,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:48,489 INFO L225 Difference]: With dead ends: 58774 [2022-01-18 13:24:48,489 INFO L226 Difference]: Without dead ends: 57604 [2022-01-18 13:24:48,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=256, Invalid=556, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:24:48,489 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 660 mSDsluCounter, 3297 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:48,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [660 Valid, 3115 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:24:48,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57604 states. [2022-01-18 13:24:49,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57604 to 24280. [2022-01-18 13:24:49,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24280 states, 24279 states have (on average 4.014868816672845) internal successors, (97477), 24279 states have internal predecessors, (97477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:49,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24280 states to 24280 states and 97477 transitions. [2022-01-18 13:24:49,176 INFO L78 Accepts]: Start accepts. Automaton has 24280 states and 97477 transitions. Word has length 117 [2022-01-18 13:24:49,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:49,176 INFO L470 AbstractCegarLoop]: Abstraction has 24280 states and 97477 transitions. [2022-01-18 13:24:49,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:49,177 INFO L276 IsEmpty]: Start isEmpty. Operand 24280 states and 97477 transitions. [2022-01-18 13:24:49,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:24:49,221 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:49,221 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:24:49,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-18 13:24:49,221 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:24:49,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:49,222 INFO L85 PathProgramCache]: Analyzing trace with hash 612722271, now seen corresponding path program 72 times [2022-01-18 13:24:49,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:49,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106577237] [2022-01-18 13:24:49,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:49,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:50,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:50,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:50,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106577237] [2022-01-18 13:24:50,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106577237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:50,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:50,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:24:50,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672100324] [2022-01-18 13:24:50,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:50,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:24:50,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:50,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:24:50,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:24:50,029 INFO L87 Difference]: Start difference. First operand 24280 states and 97477 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:51,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:51,535 INFO L93 Difference]: Finished difference Result 59617 states and 233805 transitions. [2022-01-18 13:24:51,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:24:51,535 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:24:51,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:51,726 INFO L225 Difference]: With dead ends: 59617 [2022-01-18 13:24:51,726 INFO L226 Difference]: Without dead ends: 59023 [2022-01-18 13:24:51,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:24:51,726 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 887 mSDsluCounter, 2919 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 2781 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:51,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [887 Valid, 2781 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:24:51,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59023 states. [2022-01-18 13:24:52,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59023 to 24337. [2022-01-18 13:24:52,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24337 states, 24336 states have (on average 4.01319033530572) internal successors, (97665), 24336 states have internal predecessors, (97665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:52,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24337 states to 24337 states and 97665 transitions. [2022-01-18 13:24:52,686 INFO L78 Accepts]: Start accepts. Automaton has 24337 states and 97665 transitions. Word has length 117 [2022-01-18 13:24:52,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:52,686 INFO L470 AbstractCegarLoop]: Abstraction has 24337 states and 97665 transitions. [2022-01-18 13:24:52,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:52,687 INFO L276 IsEmpty]: Start isEmpty. Operand 24337 states and 97665 transitions. [2022-01-18 13:24:52,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:24:52,732 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:52,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:24:52,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-18 13:24:52,732 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:24:52,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:52,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1945589887, now seen corresponding path program 73 times [2022-01-18 13:24:52,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:52,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125422834] [2022-01-18 13:24:52,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:52,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:53,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:53,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:53,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125422834] [2022-01-18 13:24:53,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125422834] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:53,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:53,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:24:53,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858127101] [2022-01-18 13:24:53,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:53,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:24:53,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:53,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:24:53,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:24:53,324 INFO L87 Difference]: Start difference. First operand 24337 states and 97665 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:55,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:55,016 INFO L93 Difference]: Finished difference Result 59605 states and 233730 transitions. [2022-01-18 13:24:55,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:24:55,016 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:24:55,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:55,227 INFO L225 Difference]: With dead ends: 59605 [2022-01-18 13:24:55,227 INFO L226 Difference]: Without dead ends: 58978 [2022-01-18 13:24:55,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:24:55,231 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 833 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 2943 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:55,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [833 Valid, 2943 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:24:55,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58978 states. [2022-01-18 13:24:55,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58978 to 24292. [2022-01-18 13:24:55,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24292 states, 24291 states have (on average 4.014573298752625) internal successors, (97518), 24291 states have internal predecessors, (97518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:56,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24292 states to 24292 states and 97518 transitions. [2022-01-18 13:24:56,289 INFO L78 Accepts]: Start accepts. Automaton has 24292 states and 97518 transitions. Word has length 117 [2022-01-18 13:24:56,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:56,289 INFO L470 AbstractCegarLoop]: Abstraction has 24292 states and 97518 transitions. [2022-01-18 13:24:56,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:56,289 INFO L276 IsEmpty]: Start isEmpty. Operand 24292 states and 97518 transitions. [2022-01-18 13:24:56,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:24:56,333 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:56,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:24:56,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-18 13:24:56,333 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:24:56,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:56,334 INFO L85 PathProgramCache]: Analyzing trace with hash -5979959, now seen corresponding path program 74 times [2022-01-18 13:24:56,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:56,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137731785] [2022-01-18 13:24:56,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:56,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:56,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:56,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:56,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137731785] [2022-01-18 13:24:56,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137731785] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:56,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:56,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:24:56,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214077720] [2022-01-18 13:24:56,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:56,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:24:56,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:56,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:24:56,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:24:56,985 INFO L87 Difference]: Start difference. First operand 24292 states and 97518 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:58,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:58,487 INFO L93 Difference]: Finished difference Result 59569 states and 233640 transitions. [2022-01-18 13:24:58,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:24:58,488 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:24:58,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:58,936 INFO L225 Difference]: With dead ends: 59569 [2022-01-18 13:24:58,936 INFO L226 Difference]: Without dead ends: 58975 [2022-01-18 13:24:58,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:24:58,937 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 816 mSDsluCounter, 3040 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 2888 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:58,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [816 Valid, 2888 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:24:59,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58975 states. [2022-01-18 13:24:59,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58975 to 24328. [2022-01-18 13:24:59,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24328 states, 24327 states have (on average 4.0131952151929955) internal successors, (97629), 24327 states have internal predecessors, (97629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:59,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24328 states to 24328 states and 97629 transitions. [2022-01-18 13:24:59,650 INFO L78 Accepts]: Start accepts. Automaton has 24328 states and 97629 transitions. Word has length 117 [2022-01-18 13:24:59,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:59,651 INFO L470 AbstractCegarLoop]: Abstraction has 24328 states and 97629 transitions. [2022-01-18 13:24:59,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:59,651 INFO L276 IsEmpty]: Start isEmpty. Operand 24328 states and 97629 transitions. [2022-01-18 13:24:59,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:24:59,695 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:59,696 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:24:59,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-18 13:24:59,696 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:24:59,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:59,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1054031135, now seen corresponding path program 75 times [2022-01-18 13:24:59,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:59,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967663640] [2022-01-18 13:24:59,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:59,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:00,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:00,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:00,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967663640] [2022-01-18 13:25:00,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967663640] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:00,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:00,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:25:00,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015120344] [2022-01-18 13:25:00,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:00,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:25:00,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:00,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:25:00,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:25:00,458 INFO L87 Difference]: Start difference. First operand 24328 states and 97629 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:02,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:02,039 INFO L93 Difference]: Finished difference Result 59080 states and 232047 transitions. [2022-01-18 13:25:02,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:25:02,039 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:25:02,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:02,227 INFO L225 Difference]: With dead ends: 59080 [2022-01-18 13:25:02,227 INFO L226 Difference]: Without dead ends: 58489 [2022-01-18 13:25:02,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:25:02,228 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 733 mSDsluCounter, 2994 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 2846 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:02,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [733 Valid, 2846 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:25:02,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58489 states. [2022-01-18 13:25:03,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58489 to 24292. [2022-01-18 13:25:03,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24292 states, 24291 states have (on average 4.014079288625417) internal successors, (97506), 24291 states have internal predecessors, (97506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:03,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24292 states to 24292 states and 97506 transitions. [2022-01-18 13:25:03,179 INFO L78 Accepts]: Start accepts. Automaton has 24292 states and 97506 transitions. Word has length 117 [2022-01-18 13:25:03,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:03,179 INFO L470 AbstractCegarLoop]: Abstraction has 24292 states and 97506 transitions. [2022-01-18 13:25:03,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:03,179 INFO L276 IsEmpty]: Start isEmpty. Operand 24292 states and 97506 transitions. [2022-01-18 13:25:03,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:25:03,224 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:03,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:25:03,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-18 13:25:03,224 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:25:03,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:03,225 INFO L85 PathProgramCache]: Analyzing trace with hash 446195433, now seen corresponding path program 76 times [2022-01-18 13:25:03,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:03,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453038774] [2022-01-18 13:25:03,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:03,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:03,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:03,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:03,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453038774] [2022-01-18 13:25:03,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453038774] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:03,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:03,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:25:03,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558877146] [2022-01-18 13:25:03,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:03,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:25:03,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:03,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:25:03,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:25:03,804 INFO L87 Difference]: Start difference. First operand 24292 states and 97506 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:05,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:05,398 INFO L93 Difference]: Finished difference Result 58828 states and 231114 transitions. [2022-01-18 13:25:05,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:25:05,399 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:25:05,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:05,598 INFO L225 Difference]: With dead ends: 58828 [2022-01-18 13:25:05,598 INFO L226 Difference]: Without dead ends: 58246 [2022-01-18 13:25:05,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=239, Invalid=517, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:25:05,598 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 744 mSDsluCounter, 2981 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 2829 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:05,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [744 Valid, 2829 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:25:05,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58246 states. [2022-01-18 13:25:06,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58246 to 24328. [2022-01-18 13:25:06,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24328 states, 24327 states have (on average 4.01270193612036) internal successors, (97617), 24327 states have internal predecessors, (97617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:06,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24328 states to 24328 states and 97617 transitions. [2022-01-18 13:25:06,654 INFO L78 Accepts]: Start accepts. Automaton has 24328 states and 97617 transitions. Word has length 117 [2022-01-18 13:25:06,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:06,654 INFO L470 AbstractCegarLoop]: Abstraction has 24328 states and 97617 transitions. [2022-01-18 13:25:06,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:06,654 INFO L276 IsEmpty]: Start isEmpty. Operand 24328 states and 97617 transitions. [2022-01-18 13:25:06,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:25:06,700 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:06,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:25:06,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-18 13:25:06,700 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:25:06,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:06,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1236330689, now seen corresponding path program 77 times [2022-01-18 13:25:06,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:06,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51854228] [2022-01-18 13:25:06,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:06,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:07,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:07,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:07,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51854228] [2022-01-18 13:25:07,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51854228] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:07,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:07,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:25:07,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245125579] [2022-01-18 13:25:07,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:07,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:25:07,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:07,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:25:07,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:25:07,237 INFO L87 Difference]: Start difference. First operand 24328 states and 97617 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:08,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:08,685 INFO L93 Difference]: Finished difference Result 58351 states and 229551 transitions. [2022-01-18 13:25:08,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:25:08,686 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:25:08,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:08,870 INFO L225 Difference]: With dead ends: 58351 [2022-01-18 13:25:08,870 INFO L226 Difference]: Without dead ends: 57748 [2022-01-18 13:25:08,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:25:08,871 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 816 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 2737 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:08,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [816 Valid, 2737 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:25:09,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57748 states. [2022-01-18 13:25:09,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57748 to 24280. [2022-01-18 13:25:09,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24280 states, 24279 states have (on average 4.014374562379011) internal successors, (97465), 24279 states have internal predecessors, (97465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:09,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24280 states to 24280 states and 97465 transitions. [2022-01-18 13:25:09,814 INFO L78 Accepts]: Start accepts. Automaton has 24280 states and 97465 transitions. Word has length 117 [2022-01-18 13:25:09,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:09,815 INFO L470 AbstractCegarLoop]: Abstraction has 24280 states and 97465 transitions. [2022-01-18 13:25:09,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:09,815 INFO L276 IsEmpty]: Start isEmpty. Operand 24280 states and 97465 transitions. [2022-01-18 13:25:09,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:25:09,861 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:09,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:25:09,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-18 13:25:09,861 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:25:09,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:09,862 INFO L85 PathProgramCache]: Analyzing trace with hash -985900451, now seen corresponding path program 78 times [2022-01-18 13:25:09,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:09,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693110994] [2022-01-18 13:25:09,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:09,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:10,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:10,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:10,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693110994] [2022-01-18 13:25:10,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693110994] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:10,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:10,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:25:10,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130993876] [2022-01-18 13:25:10,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:10,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:25:10,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:10,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:25:10,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:25:10,444 INFO L87 Difference]: Start difference. First operand 24280 states and 97465 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:12,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:12,177 INFO L93 Difference]: Finished difference Result 59488 states and 233497 transitions. [2022-01-18 13:25:12,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:25:12,178 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:25:12,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:12,366 INFO L225 Difference]: With dead ends: 59488 [2022-01-18 13:25:12,366 INFO L226 Difference]: Without dead ends: 58453 [2022-01-18 13:25:12,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:25:12,366 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 760 mSDsluCounter, 3023 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:12,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [760 Valid, 2870 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 13:25:12,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58453 states. [2022-01-18 13:25:13,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58453 to 24388. [2022-01-18 13:25:13,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24388 states, 24387 states have (on average 4.010251363431336) internal successors, (97798), 24387 states have internal predecessors, (97798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:13,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24388 states to 24388 states and 97798 transitions. [2022-01-18 13:25:13,327 INFO L78 Accepts]: Start accepts. Automaton has 24388 states and 97798 transitions. Word has length 117 [2022-01-18 13:25:13,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:13,327 INFO L470 AbstractCegarLoop]: Abstraction has 24388 states and 97798 transitions. [2022-01-18 13:25:13,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:13,328 INFO L276 IsEmpty]: Start isEmpty. Operand 24388 states and 97798 transitions. [2022-01-18 13:25:13,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:25:13,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:13,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:25:13,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-18 13:25:13,374 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:25:13,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:13,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1059409287, now seen corresponding path program 79 times [2022-01-18 13:25:13,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:13,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334132069] [2022-01-18 13:25:13,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:13,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:13,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:13,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:13,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334132069] [2022-01-18 13:25:13,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334132069] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:13,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:13,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:25:13,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112407598] [2022-01-18 13:25:13,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:13,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:25:13,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:13,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:25:13,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:25:13,990 INFO L87 Difference]: Start difference. First operand 24388 states and 97798 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:15,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:15,745 INFO L93 Difference]: Finished difference Result 59044 states and 231841 transitions. [2022-01-18 13:25:15,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:25:15,745 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:25:15,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:15,960 INFO L225 Difference]: With dead ends: 59044 [2022-01-18 13:25:15,960 INFO L226 Difference]: Without dead ends: 58450 [2022-01-18 13:25:15,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:25:15,961 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 739 mSDsluCounter, 3083 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:15,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [739 Valid, 2920 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:25:16,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58450 states. [2022-01-18 13:25:16,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58450 to 24424. [2022-01-18 13:25:16,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24424 states, 24423 states have (on average 4.008885067354543) internal successors, (97909), 24423 states have internal predecessors, (97909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:17,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24424 states to 24424 states and 97909 transitions. [2022-01-18 13:25:17,028 INFO L78 Accepts]: Start accepts. Automaton has 24424 states and 97909 transitions. Word has length 117 [2022-01-18 13:25:17,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:17,028 INFO L470 AbstractCegarLoop]: Abstraction has 24424 states and 97909 transitions. [2022-01-18 13:25:17,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:17,028 INFO L276 IsEmpty]: Start isEmpty. Operand 24424 states and 97909 transitions. [2022-01-18 13:25:17,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:25:17,075 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:17,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:25:17,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-18 13:25:17,075 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:25:17,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:17,075 INFO L85 PathProgramCache]: Analyzing trace with hash 2119420381, now seen corresponding path program 80 times [2022-01-18 13:25:17,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:17,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340735466] [2022-01-18 13:25:17,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:17,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:17,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:17,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:17,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340735466] [2022-01-18 13:25:17,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340735466] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:17,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:17,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:25:17,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486219607] [2022-01-18 13:25:17,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:17,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:25:17,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:17,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:25:17,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:25:17,640 INFO L87 Difference]: Start difference. First operand 24424 states and 97909 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:19,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:19,101 INFO L93 Difference]: Finished difference Result 58447 states and 229843 transitions. [2022-01-18 13:25:19,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:25:19,102 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:25:19,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:19,287 INFO L225 Difference]: With dead ends: 58447 [2022-01-18 13:25:19,287 INFO L226 Difference]: Without dead ends: 57712 [2022-01-18 13:25:19,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:25:19,288 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 688 mSDsluCounter, 2919 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:19,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [688 Valid, 2776 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:25:19,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57712 states. [2022-01-18 13:25:20,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57712 to 24244. [2022-01-18 13:25:20,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24244 states, 24243 states have (on average 4.014272161036176) internal successors, (97318), 24243 states have internal predecessors, (97318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:20,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24244 states to 24244 states and 97318 transitions. [2022-01-18 13:25:20,230 INFO L78 Accepts]: Start accepts. Automaton has 24244 states and 97318 transitions. Word has length 117 [2022-01-18 13:25:20,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:20,230 INFO L470 AbstractCegarLoop]: Abstraction has 24244 states and 97318 transitions. [2022-01-18 13:25:20,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:20,230 INFO L276 IsEmpty]: Start isEmpty. Operand 24244 states and 97318 transitions. [2022-01-18 13:25:20,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:25:20,275 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:20,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:25:20,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-18 13:25:20,276 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:25:20,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:20,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1886003599, now seen corresponding path program 81 times [2022-01-18 13:25:20,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:20,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316894128] [2022-01-18 13:25:20,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:20,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:20,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:20,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:20,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316894128] [2022-01-18 13:25:20,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316894128] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:20,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:20,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:25:20,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909217210] [2022-01-18 13:25:20,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:20,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:25:20,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:20,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:25:20,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:25:20,895 INFO L87 Difference]: Start difference. First operand 24244 states and 97318 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:22,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:22,603 INFO L93 Difference]: Finished difference Result 60400 states and 237038 transitions. [2022-01-18 13:25:22,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 13:25:22,603 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:25:22,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:22,794 INFO L225 Difference]: With dead ends: 60400 [2022-01-18 13:25:22,795 INFO L226 Difference]: Without dead ends: 59806 [2022-01-18 13:25:22,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=278, Invalid=592, Unknown=0, NotChecked=0, Total=870 [2022-01-18 13:25:22,795 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 760 mSDsluCounter, 3139 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 3001 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:22,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [760 Valid, 3001 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1289 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:25:22,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59806 states. [2022-01-18 13:25:23,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59806 to 24325. [2022-01-18 13:25:23,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24325 states, 24324 states have (on average 4.012991284328235) internal successors, (97612), 24324 states have internal predecessors, (97612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:23,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24325 states to 24325 states and 97612 transitions. [2022-01-18 13:25:23,743 INFO L78 Accepts]: Start accepts. Automaton has 24325 states and 97612 transitions. Word has length 117 [2022-01-18 13:25:23,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:23,743 INFO L470 AbstractCegarLoop]: Abstraction has 24325 states and 97612 transitions. [2022-01-18 13:25:23,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:23,743 INFO L276 IsEmpty]: Start isEmpty. Operand 24325 states and 97612 transitions. [2022-01-18 13:25:23,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:25:23,788 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:23,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:25:23,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-18 13:25:23,788 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:25:23,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:23,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1076096081, now seen corresponding path program 82 times [2022-01-18 13:25:23,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:23,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557599369] [2022-01-18 13:25:23,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:23,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:24,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:24,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:24,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557599369] [2022-01-18 13:25:24,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557599369] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:24,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:24,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:25:24,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712099648] [2022-01-18 13:25:24,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:24,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:25:24,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:24,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:25:24,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:25:24,387 INFO L87 Difference]: Start difference. First operand 24325 states and 97612 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:26,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:26,321 INFO L93 Difference]: Finished difference Result 60793 states and 238448 transitions. [2022-01-18 13:25:26,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 13:25:26,321 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:25:26,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:26,523 INFO L225 Difference]: With dead ends: 60793 [2022-01-18 13:25:26,523 INFO L226 Difference]: Without dead ends: 60166 [2022-01-18 13:25:26,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=298, Invalid=632, Unknown=0, NotChecked=0, Total=930 [2022-01-18 13:25:26,523 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 750 mSDsluCounter, 3157 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:26,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [750 Valid, 3025 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:25:26,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60166 states. [2022-01-18 13:25:27,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60166 to 24280. [2022-01-18 13:25:27,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24280 states, 24279 states have (on average 4.014374562379011) internal successors, (97465), 24279 states have internal predecessors, (97465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:27,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24280 states to 24280 states and 97465 transitions. [2022-01-18 13:25:27,643 INFO L78 Accepts]: Start accepts. Automaton has 24280 states and 97465 transitions. Word has length 117 [2022-01-18 13:25:27,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:27,643 INFO L470 AbstractCegarLoop]: Abstraction has 24280 states and 97465 transitions. [2022-01-18 13:25:27,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:27,643 INFO L276 IsEmpty]: Start isEmpty. Operand 24280 states and 97465 transitions. [2022-01-18 13:25:27,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:25:27,690 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:27,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:25:27,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-18 13:25:27,690 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:25:27,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:27,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1267301369, now seen corresponding path program 83 times [2022-01-18 13:25:27,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:27,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383500445] [2022-01-18 13:25:27,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:27,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:28,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:28,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:28,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383500445] [2022-01-18 13:25:28,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383500445] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:28,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:28,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:25:28,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521649617] [2022-01-18 13:25:28,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:28,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:25:28,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:28,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:25:28,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:25:28,296 INFO L87 Difference]: Start difference. First operand 24280 states and 97465 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:29,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:29,877 INFO L93 Difference]: Finished difference Result 60409 states and 236810 transitions. [2022-01-18 13:25:29,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:25:29,878 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:25:29,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:30,316 INFO L225 Difference]: With dead ends: 60409 [2022-01-18 13:25:30,316 INFO L226 Difference]: Without dead ends: 59815 [2022-01-18 13:25:30,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=259, Invalid=553, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:25:30,316 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 895 mSDsluCounter, 2932 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 2795 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:30,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [895 Valid, 2795 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:25:30,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59815 states. [2022-01-18 13:25:30,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59815 to 24316. [2022-01-18 13:25:30,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.01299609294674) internal successors, (97576), 24315 states have internal predecessors, (97576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:31,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97576 transitions. [2022-01-18 13:25:31,058 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97576 transitions. Word has length 117 [2022-01-18 13:25:31,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:31,058 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97576 transitions. [2022-01-18 13:25:31,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:31,058 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97576 transitions. [2022-01-18 13:25:31,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:25:31,104 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:31,104 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:25:31,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-18 13:25:31,104 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:25:31,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:31,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1967654833, now seen corresponding path program 84 times [2022-01-18 13:25:31,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:31,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146251176] [2022-01-18 13:25:31,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:31,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:31,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:31,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:31,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146251176] [2022-01-18 13:25:31,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146251176] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:31,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:31,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:25:31,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206482077] [2022-01-18 13:25:31,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:31,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:25:31,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:31,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:25:31,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:25:31,682 INFO L87 Difference]: Start difference. First operand 24316 states and 97576 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:33,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:33,455 INFO L93 Difference]: Finished difference Result 59920 states and 235217 transitions. [2022-01-18 13:25:33,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:25:33,456 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:25:33,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:33,649 INFO L225 Difference]: With dead ends: 59920 [2022-01-18 13:25:33,649 INFO L226 Difference]: Without dead ends: 59329 [2022-01-18 13:25:33,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=259, Invalid=553, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:25:33,650 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 669 mSDsluCounter, 3230 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 3052 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:33,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [669 Valid, 3052 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 13:25:33,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59329 states. [2022-01-18 13:25:34,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59329 to 24280. [2022-01-18 13:25:34,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24280 states, 24279 states have (on average 4.013880308085176) internal successors, (97453), 24279 states have internal predecessors, (97453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:34,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24280 states to 24280 states and 97453 transitions. [2022-01-18 13:25:34,619 INFO L78 Accepts]: Start accepts. Automaton has 24280 states and 97453 transitions. Word has length 117 [2022-01-18 13:25:34,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:34,619 INFO L470 AbstractCegarLoop]: Abstraction has 24280 states and 97453 transitions. [2022-01-18 13:25:34,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:34,619 INFO L276 IsEmpty]: Start isEmpty. Operand 24280 states and 97453 transitions. [2022-01-18 13:25:34,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:25:34,664 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:34,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:25:34,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-18 13:25:34,664 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:25:34,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:34,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1719476761, now seen corresponding path program 85 times [2022-01-18 13:25:34,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:34,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339196234] [2022-01-18 13:25:34,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:34,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:34,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:35,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:35,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:35,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339196234] [2022-01-18 13:25:35,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339196234] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:35,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:35,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:25:35,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249965167] [2022-01-18 13:25:35,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:35,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:25:35,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:35,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:25:35,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:25:35,193 INFO L87 Difference]: Start difference. First operand 24280 states and 97453 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:37,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:37,070 INFO L93 Difference]: Finished difference Result 60397 states and 236768 transitions. [2022-01-18 13:25:37,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:25:37,071 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:25:37,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:37,274 INFO L225 Difference]: With dead ends: 60397 [2022-01-18 13:25:37,274 INFO L226 Difference]: Without dead ends: 59815 [2022-01-18 13:25:37,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=259, Invalid=553, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:25:37,275 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 810 mSDsluCounter, 3219 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 3040 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:37,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [810 Valid, 3040 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:25:37,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59815 states. [2022-01-18 13:25:37,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59815 to 24316. [2022-01-18 13:25:37,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.012502570429776) internal successors, (97564), 24315 states have internal predecessors, (97564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:38,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97564 transitions. [2022-01-18 13:25:38,321 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97564 transitions. Word has length 117 [2022-01-18 13:25:38,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:38,321 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97564 transitions. [2022-01-18 13:25:38,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:38,322 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97564 transitions. [2022-01-18 13:25:38,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:25:38,367 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:38,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:25:38,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-01-18 13:25:38,368 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:25:38,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:38,368 INFO L85 PathProgramCache]: Analyzing trace with hash 36950639, now seen corresponding path program 86 times [2022-01-18 13:25:38,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:38,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752542534] [2022-01-18 13:25:38,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:38,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:38,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:38,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:38,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752542534] [2022-01-18 13:25:38,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752542534] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:38,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:38,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:25:38,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186029013] [2022-01-18 13:25:38,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:38,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:25:38,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:38,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:25:38,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:25:38,940 INFO L87 Difference]: Start difference. First operand 24316 states and 97564 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:40,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:40,502 INFO L93 Difference]: Finished difference Result 59920 states and 235205 transitions. [2022-01-18 13:25:40,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:25:40,502 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:25:40,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:40,972 INFO L225 Difference]: With dead ends: 59920 [2022-01-18 13:25:40,972 INFO L226 Difference]: Without dead ends: 59317 [2022-01-18 13:25:40,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=259, Invalid=553, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:25:40,976 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 786 mSDsluCounter, 2925 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 2793 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:40,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [786 Valid, 2793 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:25:41,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59317 states. [2022-01-18 13:25:41,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59317 to 24268. [2022-01-18 13:25:41,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24268 states, 24267 states have (on average 4.014175629455639) internal successors, (97412), 24267 states have internal predecessors, (97412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:41,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24268 states to 24268 states and 97412 transitions. [2022-01-18 13:25:41,750 INFO L78 Accepts]: Start accepts. Automaton has 24268 states and 97412 transitions. Word has length 117 [2022-01-18 13:25:41,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:41,750 INFO L470 AbstractCegarLoop]: Abstraction has 24268 states and 97412 transitions. [2022-01-18 13:25:41,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:41,750 INFO L276 IsEmpty]: Start isEmpty. Operand 24268 states and 97412 transitions. [2022-01-18 13:25:41,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:25:41,799 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:41,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:25:41,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-01-18 13:25:41,800 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:25:41,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:41,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1089919097, now seen corresponding path program 87 times [2022-01-18 13:25:41,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:41,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723001963] [2022-01-18 13:25:41,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:41,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:42,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:42,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:42,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723001963] [2022-01-18 13:25:42,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723001963] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:42,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:42,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:25:42,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419909266] [2022-01-18 13:25:42,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:42,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:25:42,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:42,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:25:42,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:25:42,410 INFO L87 Difference]: Start difference. First operand 24268 states and 97412 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:44,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:44,149 INFO L93 Difference]: Finished difference Result 60052 states and 235752 transitions. [2022-01-18 13:25:44,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:25:44,150 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:25:44,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:44,343 INFO L225 Difference]: With dead ends: 60052 [2022-01-18 13:25:44,343 INFO L226 Difference]: Without dead ends: 59458 [2022-01-18 13:25:44,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=261, Invalid=551, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:25:44,344 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 805 mSDsluCounter, 2868 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:44,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [805 Valid, 2747 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 13:25:44,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59458 states. [2022-01-18 13:25:45,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59458 to 24376. [2022-01-18 13:25:45,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24376 states, 24375 states have (on average 4.013005128205128) internal successors, (97817), 24375 states have internal predecessors, (97817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:45,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24376 states to 24376 states and 97817 transitions. [2022-01-18 13:25:45,340 INFO L78 Accepts]: Start accepts. Automaton has 24376 states and 97817 transitions. Word has length 117 [2022-01-18 13:25:45,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:45,341 INFO L470 AbstractCegarLoop]: Abstraction has 24376 states and 97817 transitions. [2022-01-18 13:25:45,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:45,341 INFO L276 IsEmpty]: Start isEmpty. Operand 24376 states and 97817 transitions. [2022-01-18 13:25:45,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:25:45,388 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:45,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:25:45,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-01-18 13:25:45,388 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:25:45,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:45,388 INFO L85 PathProgramCache]: Analyzing trace with hash -29908003, now seen corresponding path program 88 times [2022-01-18 13:25:45,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:45,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232439534] [2022-01-18 13:25:45,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:45,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:45,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:45,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:45,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232439534] [2022-01-18 13:25:45,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232439534] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:45,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:45,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:25:45,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219286518] [2022-01-18 13:25:45,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:45,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:25:45,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:45,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:25:45,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:25:45,952 INFO L87 Difference]: Start difference. First operand 24376 states and 97817 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:47,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:47,796 INFO L93 Difference]: Finished difference Result 60013 states and 235596 transitions. [2022-01-18 13:25:47,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:25:47,797 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:25:47,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:48,009 INFO L225 Difference]: With dead ends: 60013 [2022-01-18 13:25:48,009 INFO L226 Difference]: Without dead ends: 59422 [2022-01-18 13:25:48,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=261, Invalid=551, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:25:48,009 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 771 mSDsluCounter, 2913 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 2775 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:48,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [771 Valid, 2775 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:25:48,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59422 states. [2022-01-18 13:25:48,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59422 to 24340. [2022-01-18 13:25:48,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24340 states, 24339 states have (on average 4.012901105222071) internal successors, (97670), 24339 states have internal predecessors, (97670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:49,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24340 states to 24340 states and 97670 transitions. [2022-01-18 13:25:49,062 INFO L78 Accepts]: Start accepts. Automaton has 24340 states and 97670 transitions. Word has length 117 [2022-01-18 13:25:49,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:49,062 INFO L470 AbstractCegarLoop]: Abstraction has 24340 states and 97670 transitions. [2022-01-18 13:25:49,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:49,062 INFO L276 IsEmpty]: Start isEmpty. Operand 24340 states and 97670 transitions. [2022-01-18 13:25:49,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:25:49,109 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:49,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:25:49,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-01-18 13:25:49,109 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:25:49,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:49,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1760110767, now seen corresponding path program 89 times [2022-01-18 13:25:49,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:49,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071101596] [2022-01-18 13:25:49,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:49,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:49,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:49,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:49,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071101596] [2022-01-18 13:25:49,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071101596] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:49,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:49,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:25:49,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500067936] [2022-01-18 13:25:49,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:49,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:25:49,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:49,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:25:49,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:25:49,740 INFO L87 Difference]: Start difference. First operand 24340 states and 97670 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:51,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:51,352 INFO L93 Difference]: Finished difference Result 59635 states and 234417 transitions. [2022-01-18 13:25:51,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:25:51,352 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:25:51,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:51,794 INFO L225 Difference]: With dead ends: 59635 [2022-01-18 13:25:51,794 INFO L226 Difference]: Without dead ends: 58792 [2022-01-18 13:25:51,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=263, Invalid=549, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:25:51,795 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 751 mSDsluCounter, 2955 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 2811 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:51,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 2811 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:25:51,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58792 states. [2022-01-18 13:25:52,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58792 to 24268. [2022-01-18 13:25:52,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24268 states, 24267 states have (on average 4.013186632051758) internal successors, (97388), 24267 states have internal predecessors, (97388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:52,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24268 states to 24268 states and 97388 transitions. [2022-01-18 13:25:52,505 INFO L78 Accepts]: Start accepts. Automaton has 24268 states and 97388 transitions. Word has length 117 [2022-01-18 13:25:52,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:52,506 INFO L470 AbstractCegarLoop]: Abstraction has 24268 states and 97388 transitions. [2022-01-18 13:25:52,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:52,506 INFO L276 IsEmpty]: Start isEmpty. Operand 24268 states and 97388 transitions. [2022-01-18 13:25:52,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:25:52,550 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:52,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:25:52,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-01-18 13:25:52,551 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:25:52,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:52,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1375483783, now seen corresponding path program 90 times [2022-01-18 13:25:52,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:52,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713965958] [2022-01-18 13:25:52,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:52,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:53,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:53,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:53,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713965958] [2022-01-18 13:25:53,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713965958] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:53,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:53,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:25:53,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887118294] [2022-01-18 13:25:53,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:53,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:25:53,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:53,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:25:53,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:25:53,290 INFO L87 Difference]: Start difference. First operand 24268 states and 97388 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:54,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:54,941 INFO L93 Difference]: Finished difference Result 59428 states and 233595 transitions. [2022-01-18 13:25:54,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 13:25:54,941 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:25:54,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:55,172 INFO L225 Difference]: With dead ends: 59428 [2022-01-18 13:25:55,172 INFO L226 Difference]: Without dead ends: 58846 [2022-01-18 13:25:55,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=303, Invalid=627, Unknown=0, NotChecked=0, Total=930 [2022-01-18 13:25:55,173 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 736 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:55,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [736 Valid, 2849 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:25:55,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58846 states. [2022-01-18 13:25:56,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58846 to 24376. [2022-01-18 13:25:56,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24376 states, 24375 states have (on average 4.012020512820513) internal successors, (97793), 24375 states have internal predecessors, (97793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:56,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24376 states to 24376 states and 97793 transitions. [2022-01-18 13:25:56,154 INFO L78 Accepts]: Start accepts. Automaton has 24376 states and 97793 transitions. Word has length 117 [2022-01-18 13:25:56,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:56,155 INFO L470 AbstractCegarLoop]: Abstraction has 24376 states and 97793 transitions. [2022-01-18 13:25:56,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:56,155 INFO L276 IsEmpty]: Start isEmpty. Operand 24376 states and 97793 transitions. [2022-01-18 13:25:56,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:25:56,200 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:56,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:25:56,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-01-18 13:25:56,201 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:25:56,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:56,201 INFO L85 PathProgramCache]: Analyzing trace with hash -307042339, now seen corresponding path program 91 times [2022-01-18 13:25:56,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:56,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002585623] [2022-01-18 13:25:56,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:56,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:56,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:56,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:56,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002585623] [2022-01-18 13:25:56,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002585623] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:56,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:56,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:25:56,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505948000] [2022-01-18 13:25:56,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:56,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:25:56,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:56,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:25:56,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:25:56,841 INFO L87 Difference]: Start difference. First operand 24376 states and 97793 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:58,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:58,615 INFO L93 Difference]: Finished difference Result 58996 states and 231984 transitions. [2022-01-18 13:25:58,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 13:25:58,615 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:25:58,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:58,811 INFO L225 Difference]: With dead ends: 58996 [2022-01-18 13:25:58,811 INFO L226 Difference]: Without dead ends: 58405 [2022-01-18 13:25:58,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=283, Invalid=587, Unknown=0, NotChecked=0, Total=870 [2022-01-18 13:25:58,814 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 730 mSDsluCounter, 3233 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:58,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [730 Valid, 3050 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1387 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:25:58,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58405 states. [2022-01-18 13:25:59,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58405 to 24340. [2022-01-18 13:25:59,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24340 states, 24339 states have (on average 4.011915033485352) internal successors, (97646), 24339 states have internal predecessors, (97646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:59,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24340 states to 24340 states and 97646 transitions. [2022-01-18 13:25:59,844 INFO L78 Accepts]: Start accepts. Automaton has 24340 states and 97646 transitions. Word has length 117 [2022-01-18 13:25:59,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:59,844 INFO L470 AbstractCegarLoop]: Abstraction has 24340 states and 97646 transitions. [2022-01-18 13:25:59,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:59,844 INFO L276 IsEmpty]: Start isEmpty. Operand 24340 states and 97646 transitions. [2022-01-18 13:25:59,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:25:59,889 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:59,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:25:59,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-01-18 13:25:59,889 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:25:59,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:59,889 INFO L85 PathProgramCache]: Analyzing trace with hash -521629041, now seen corresponding path program 92 times [2022-01-18 13:25:59,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:59,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678408055] [2022-01-18 13:25:59,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:59,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:00,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:00,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:00,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678408055] [2022-01-18 13:26:00,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678408055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:00,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:00,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:26:00,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940037823] [2022-01-18 13:26:00,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:00,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:26:00,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:00,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:26:00,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:26:00,440 INFO L87 Difference]: Start difference. First operand 24340 states and 97646 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:02,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:02,099 INFO L93 Difference]: Finished difference Result 58618 states and 230805 transitions. [2022-01-18 13:26:02,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 13:26:02,099 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:26:02,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:02,547 INFO L225 Difference]: With dead ends: 58618 [2022-01-18 13:26:02,548 INFO L226 Difference]: Without dead ends: 57751 [2022-01-18 13:26:02,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=285, Invalid=585, Unknown=0, NotChecked=0, Total=870 [2022-01-18 13:26:02,548 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 651 mSDsluCounter, 3140 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 2965 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:02,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [651 Valid, 2965 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:26:02,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57751 states. [2022-01-18 13:26:03,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57751 to 24244. [2022-01-18 13:26:03,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24244 states, 24243 states have (on average 4.013282184548117) internal successors, (97294), 24243 states have internal predecessors, (97294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:03,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24244 states to 24244 states and 97294 transitions. [2022-01-18 13:26:03,281 INFO L78 Accepts]: Start accepts. Automaton has 24244 states and 97294 transitions. Word has length 117 [2022-01-18 13:26:03,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:03,281 INFO L470 AbstractCegarLoop]: Abstraction has 24244 states and 97294 transitions. [2022-01-18 13:26:03,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:03,281 INFO L276 IsEmpty]: Start isEmpty. Operand 24244 states and 97294 transitions. [2022-01-18 13:26:03,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:26:03,326 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:03,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:26:03,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-01-18 13:26:03,326 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:26:03,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:03,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1045290865, now seen corresponding path program 93 times [2022-01-18 13:26:03,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:03,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005901956] [2022-01-18 13:26:03,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:03,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:03,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:03,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:03,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:03,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005901956] [2022-01-18 13:26:03,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005901956] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:03,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:03,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:26:03,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894543303] [2022-01-18 13:26:03,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:03,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:26:03,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:03,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:26:03,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:26:03,892 INFO L87 Difference]: Start difference. First operand 24244 states and 97294 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:05,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:05,496 INFO L93 Difference]: Finished difference Result 57337 states and 225959 transitions. [2022-01-18 13:26:05,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:26:05,496 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:26:05,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:05,679 INFO L225 Difference]: With dead ends: 57337 [2022-01-18 13:26:05,679 INFO L226 Difference]: Without dead ends: 56302 [2022-01-18 13:26:05,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=243, Invalid=513, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:26:05,679 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 621 mSDsluCounter, 2946 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 2799 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:05,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [621 Valid, 2799 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:26:05,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56302 states. [2022-01-18 13:26:06,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56302 to 24568. [2022-01-18 13:26:06,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24568 states, 24567 states have (on average 4.009809907599625) internal successors, (98509), 24567 states have internal predecessors, (98509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:06,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24568 states to 24568 states and 98509 transitions. [2022-01-18 13:26:06,631 INFO L78 Accepts]: Start accepts. Automaton has 24568 states and 98509 transitions. Word has length 117 [2022-01-18 13:26:06,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:06,631 INFO L470 AbstractCegarLoop]: Abstraction has 24568 states and 98509 transitions. [2022-01-18 13:26:06,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:06,631 INFO L276 IsEmpty]: Start isEmpty. Operand 24568 states and 98509 transitions. [2022-01-18 13:26:06,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:26:06,676 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:06,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:26:06,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-01-18 13:26:06,677 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:26:06,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:06,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1000018873, now seen corresponding path program 94 times [2022-01-18 13:26:06,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:06,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212034759] [2022-01-18 13:26:06,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:06,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:07,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:07,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:07,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212034759] [2022-01-18 13:26:07,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212034759] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:07,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:07,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:26:07,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868640203] [2022-01-18 13:26:07,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:07,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:26:07,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:07,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:26:07,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:26:07,287 INFO L87 Difference]: Start difference. First operand 24568 states and 98509 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:08,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:08,905 INFO L93 Difference]: Finished difference Result 57490 states and 226265 transitions. [2022-01-18 13:26:08,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:26:08,905 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:26:08,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:09,106 INFO L225 Difference]: With dead ends: 57490 [2022-01-18 13:26:09,106 INFO L226 Difference]: Without dead ends: 56896 [2022-01-18 13:26:09,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=243, Invalid=513, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:26:09,107 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 744 mSDsluCounter, 2815 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:09,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [744 Valid, 2695 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:26:09,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56896 states. [2022-01-18 13:26:09,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56896 to 24604. [2022-01-18 13:26:09,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24604 states, 24603 states have (on average 4.008454253546316) internal successors, (98620), 24603 states have internal predecessors, (98620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:09,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24604 states to 24604 states and 98620 transitions. [2022-01-18 13:26:09,866 INFO L78 Accepts]: Start accepts. Automaton has 24604 states and 98620 transitions. Word has length 117 [2022-01-18 13:26:09,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:09,866 INFO L470 AbstractCegarLoop]: Abstraction has 24604 states and 98620 transitions. [2022-01-18 13:26:09,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:09,866 INFO L276 IsEmpty]: Start isEmpty. Operand 24604 states and 98620 transitions. [2022-01-18 13:26:09,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:26:09,917 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:09,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:26:09,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-01-18 13:26:09,917 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:26:09,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:09,917 INFO L85 PathProgramCache]: Analyzing trace with hash 2060029967, now seen corresponding path program 95 times [2022-01-18 13:26:09,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:09,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851583009] [2022-01-18 13:26:09,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:09,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:10,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:10,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:10,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851583009] [2022-01-18 13:26:10,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851583009] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:10,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:10,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:26:10,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343844920] [2022-01-18 13:26:10,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:10,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:26:10,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:10,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:26:10,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:26:10,710 INFO L87 Difference]: Start difference. First operand 24604 states and 98620 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:12,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:12,051 INFO L93 Difference]: Finished difference Result 56893 states and 224267 transitions. [2022-01-18 13:26:12,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:26:12,052 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:26:12,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:12,233 INFO L225 Difference]: With dead ends: 56893 [2022-01-18 13:26:12,233 INFO L226 Difference]: Without dead ends: 56194 [2022-01-18 13:26:12,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=243, Invalid=513, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:26:12,234 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 666 mSDsluCounter, 2704 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 2598 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:12,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [666 Valid, 2598 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1124 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:26:12,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56194 states. [2022-01-18 13:26:13,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56194 to 24460. [2022-01-18 13:26:13,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24460 states, 24459 states have (on average 4.009485261049103) internal successors, (98068), 24459 states have internal predecessors, (98068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:13,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24460 states to 24460 states and 98068 transitions. [2022-01-18 13:26:13,164 INFO L78 Accepts]: Start accepts. Automaton has 24460 states and 98068 transitions. Word has length 117 [2022-01-18 13:26:13,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:13,164 INFO L470 AbstractCegarLoop]: Abstraction has 24460 states and 98068 transitions. [2022-01-18 13:26:13,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:13,164 INFO L276 IsEmpty]: Start isEmpty. Operand 24460 states and 98068 transitions. [2022-01-18 13:26:13,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:26:13,210 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:13,211 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:26:13,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-01-18 13:26:13,211 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:26:13,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:13,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1872376457, now seen corresponding path program 96 times [2022-01-18 13:26:13,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:13,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993736627] [2022-01-18 13:26:13,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:13,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:13,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:13,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:13,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993736627] [2022-01-18 13:26:13,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993736627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:13,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:13,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:26:13,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970988119] [2022-01-18 13:26:13,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:13,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:26:13,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:13,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:26:13,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:26:13,741 INFO L87 Difference]: Start difference. First operand 24460 states and 98068 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:15,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:15,303 INFO L93 Difference]: Finished difference Result 56929 states and 224414 transitions. [2022-01-18 13:26:15,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:26:15,304 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:26:15,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:15,494 INFO L225 Difference]: With dead ends: 56929 [2022-01-18 13:26:15,494 INFO L226 Difference]: Without dead ends: 56335 [2022-01-18 13:26:15,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=245, Invalid=511, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:26:15,495 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 665 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 2676 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:15,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [665 Valid, 2676 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:26:15,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56335 states. [2022-01-18 13:26:16,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56335 to 24568. [2022-01-18 13:26:16,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24568 states, 24567 states have (on average 4.0083445272113) internal successors, (98473), 24567 states have internal predecessors, (98473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:16,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24568 states to 24568 states and 98473 transitions. [2022-01-18 13:26:16,504 INFO L78 Accepts]: Start accepts. Automaton has 24568 states and 98473 transitions. Word has length 117 [2022-01-18 13:26:16,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:16,504 INFO L470 AbstractCegarLoop]: Abstraction has 24568 states and 98473 transitions. [2022-01-18 13:26:16,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:16,504 INFO L276 IsEmpty]: Start isEmpty. Operand 24568 states and 98473 transitions. [2022-01-18 13:26:16,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:26:16,549 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:16,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:26:16,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-01-18 13:26:16,549 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:26:16,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:16,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1362579745, now seen corresponding path program 97 times [2022-01-18 13:26:16,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:16,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849657763] [2022-01-18 13:26:16,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:16,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:17,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:17,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:17,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849657763] [2022-01-18 13:26:17,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849657763] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:17,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:17,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:26:17,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644888308] [2022-01-18 13:26:17,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:17,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:26:17,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:17,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:26:17,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:26:17,162 INFO L87 Difference]: Start difference. First operand 24568 states and 98473 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:18,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:18,612 INFO L93 Difference]: Finished difference Result 56890 states and 224258 transitions. [2022-01-18 13:26:18,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:26:18,612 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:26:18,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:19,056 INFO L225 Difference]: With dead ends: 56890 [2022-01-18 13:26:19,056 INFO L226 Difference]: Without dead ends: 56299 [2022-01-18 13:26:19,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=245, Invalid=511, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:26:19,057 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 616 mSDsluCounter, 3195 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 3004 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:19,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [616 Valid, 3004 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:26:19,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56299 states. [2022-01-18 13:26:19,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56299 to 24532. [2022-01-18 13:26:19,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24532 states, 24531 states have (on average 4.008234478822714) internal successors, (98326), 24531 states have internal predecessors, (98326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:19,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24532 states to 24532 states and 98326 transitions. [2022-01-18 13:26:19,777 INFO L78 Accepts]: Start accepts. Automaton has 24532 states and 98326 transitions. Word has length 117 [2022-01-18 13:26:19,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:19,778 INFO L470 AbstractCegarLoop]: Abstraction has 24532 states and 98326 transitions. [2022-01-18 13:26:19,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:19,778 INFO L276 IsEmpty]: Start isEmpty. Operand 24532 states and 98326 transitions. [2022-01-18 13:26:19,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:26:19,823 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:19,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:26:19,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-01-18 13:26:19,823 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:26:19,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:19,824 INFO L85 PathProgramCache]: Analyzing trace with hash 427439025, now seen corresponding path program 98 times [2022-01-18 13:26:19,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:19,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200994485] [2022-01-18 13:26:19,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:19,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:20,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:20,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:20,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200994485] [2022-01-18 13:26:20,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200994485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:20,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:20,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:26:20,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138065168] [2022-01-18 13:26:20,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:20,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:26:20,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:20,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:26:20,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:26:20,379 INFO L87 Difference]: Start difference. First operand 24532 states and 98326 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:22,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:22,086 INFO L93 Difference]: Finished difference Result 56296 states and 222269 transitions. [2022-01-18 13:26:22,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:26:22,086 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:26:22,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:22,265 INFO L225 Difference]: With dead ends: 56296 [2022-01-18 13:26:22,266 INFO L226 Difference]: Without dead ends: 55165 [2022-01-18 13:26:22,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=247, Invalid=509, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:26:22,266 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 626 mSDsluCounter, 2583 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:22,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [626 Valid, 2478 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:26:22,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55165 states. [2022-01-18 13:26:23,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55165 to 24172. [2022-01-18 13:26:23,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24172 states, 24171 states have (on average 4.011584129742253) internal successors, (96964), 24171 states have internal predecessors, (96964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:23,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24172 states to 24172 states and 96964 transitions. [2022-01-18 13:26:23,228 INFO L78 Accepts]: Start accepts. Automaton has 24172 states and 96964 transitions. Word has length 117 [2022-01-18 13:26:23,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:23,228 INFO L470 AbstractCegarLoop]: Abstraction has 24172 states and 96964 transitions. [2022-01-18 13:26:23,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:23,229 INFO L276 IsEmpty]: Start isEmpty. Operand 24172 states and 96964 transitions. [2022-01-18 13:26:23,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:26:23,274 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:23,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:26:23,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-01-18 13:26:23,274 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:26:23,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:23,274 INFO L85 PathProgramCache]: Analyzing trace with hash 62850121, now seen corresponding path program 99 times [2022-01-18 13:26:23,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:23,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961739457] [2022-01-18 13:26:23,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:23,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:23,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:23,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:23,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961739457] [2022-01-18 13:26:23,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961739457] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:23,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:23,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:26:23,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89406868] [2022-01-18 13:26:23,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:23,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:26:23,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:23,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:26:23,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:26:23,793 INFO L87 Difference]: Start difference. First operand 24172 states and 96964 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:25,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:25,568 INFO L93 Difference]: Finished difference Result 57262 states and 225435 transitions. [2022-01-18 13:26:25,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:26:25,568 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:26:25,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:25,767 INFO L225 Difference]: With dead ends: 57262 [2022-01-18 13:26:25,768 INFO L226 Difference]: Without dead ends: 56668 [2022-01-18 13:26:25,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:26:25,768 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 763 mSDsluCounter, 2876 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 2735 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:25,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [763 Valid, 2735 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:26:25,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56668 states. [2022-01-18 13:26:26,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56668 to 24484. [2022-01-18 13:26:26,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24484 states, 24483 states have (on average 4.0113548176285585) internal successors, (98210), 24483 states have internal predecessors, (98210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:26,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24484 states to 24484 states and 98210 transitions. [2022-01-18 13:26:26,514 INFO L78 Accepts]: Start accepts. Automaton has 24484 states and 98210 transitions. Word has length 117 [2022-01-18 13:26:26,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:26,514 INFO L470 AbstractCegarLoop]: Abstraction has 24484 states and 98210 transitions. [2022-01-18 13:26:26,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:26,514 INFO L276 IsEmpty]: Start isEmpty. Operand 24484 states and 98210 transitions. [2022-01-18 13:26:26,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:26:26,560 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:26,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:26:26,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-01-18 13:26:26,560 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:26:26,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:26,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1395717737, now seen corresponding path program 100 times [2022-01-18 13:26:26,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:26,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726922709] [2022-01-18 13:26:26,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:26,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:27,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:27,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:27,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726922709] [2022-01-18 13:26:27,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726922709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:27,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:27,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:26:27,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493534190] [2022-01-18 13:26:27,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:27,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:26:27,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:27,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:26:27,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:26:27,348 INFO L87 Difference]: Start difference. First operand 24484 states and 98210 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:28,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:28,779 INFO L93 Difference]: Finished difference Result 57250 states and 225360 transitions. [2022-01-18 13:26:28,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:26:28,779 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:26:28,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:28,963 INFO L225 Difference]: With dead ends: 57250 [2022-01-18 13:26:28,963 INFO L226 Difference]: Without dead ends: 56623 [2022-01-18 13:26:28,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:26:28,963 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 696 mSDsluCounter, 2888 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:28,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 2743 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:26:29,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56623 states. [2022-01-18 13:26:29,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56623 to 24439. [2022-01-18 13:26:29,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24439 states, 24438 states have (on average 4.01137572632785) internal successors, (98030), 24438 states have internal predecessors, (98030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:29,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24439 states to 24439 states and 98030 transitions. [2022-01-18 13:26:29,891 INFO L78 Accepts]: Start accepts. Automaton has 24439 states and 98030 transitions. Word has length 117 [2022-01-18 13:26:29,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:29,891 INFO L470 AbstractCegarLoop]: Abstraction has 24439 states and 98030 transitions. [2022-01-18 13:26:29,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:29,892 INFO L276 IsEmpty]: Start isEmpty. Operand 24439 states and 98030 transitions. [2022-01-18 13:26:29,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:26:29,936 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:29,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:26:29,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-01-18 13:26:29,937 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:26:29,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:29,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1810500967, now seen corresponding path program 101 times [2022-01-18 13:26:29,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:29,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489270953] [2022-01-18 13:26:29,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:29,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:30,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:30,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:30,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489270953] [2022-01-18 13:26:30,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489270953] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:30,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:30,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:26:30,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924391067] [2022-01-18 13:26:30,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:30,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:26:30,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:30,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:26:30,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:26:30,540 INFO L87 Difference]: Start difference. First operand 24439 states and 98030 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:32,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:32,190 INFO L93 Difference]: Finished difference Result 57610 states and 226665 transitions. [2022-01-18 13:26:32,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:26:32,191 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:26:32,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:32,375 INFO L225 Difference]: With dead ends: 57610 [2022-01-18 13:26:32,375 INFO L226 Difference]: Without dead ends: 56488 [2022-01-18 13:26:32,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:26:32,376 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 637 mSDsluCounter, 3060 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 2881 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:32,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [637 Valid, 2881 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:26:32,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56488 states. [2022-01-18 13:26:33,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56488 to 24304. [2022-01-18 13:26:33,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24304 states, 24303 states have (on average 4.011809241657408) internal successors, (97499), 24303 states have internal predecessors, (97499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:33,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24304 states to 24304 states and 97499 transitions. [2022-01-18 13:26:33,356 INFO L78 Accepts]: Start accepts. Automaton has 24304 states and 97499 transitions. Word has length 117 [2022-01-18 13:26:33,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:33,356 INFO L470 AbstractCegarLoop]: Abstraction has 24304 states and 97499 transitions. [2022-01-18 13:26:33,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:33,356 INFO L276 IsEmpty]: Start isEmpty. Operand 24304 states and 97499 transitions. [2022-01-18 13:26:33,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:26:33,401 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:33,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:26:33,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-01-18 13:26:33,402 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:26:33,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:33,402 INFO L85 PathProgramCache]: Analyzing trace with hash 574597727, now seen corresponding path program 102 times [2022-01-18 13:26:33,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:33,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330423066] [2022-01-18 13:26:33,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:33,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:34,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:34,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:34,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330423066] [2022-01-18 13:26:34,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330423066] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:34,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:34,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:26:34,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796569804] [2022-01-18 13:26:34,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:34,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:26:34,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:34,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:26:34,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:26:34,009 INFO L87 Difference]: Start difference. First operand 24304 states and 97499 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:35,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:35,428 INFO L93 Difference]: Finished difference Result 58501 states and 229505 transitions. [2022-01-18 13:26:35,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:26:35,429 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:26:35,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:35,884 INFO L225 Difference]: With dead ends: 58501 [2022-01-18 13:26:35,884 INFO L226 Difference]: Without dead ends: 57907 [2022-01-18 13:26:35,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:26:35,884 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 880 mSDsluCounter, 2912 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 2761 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:35,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [880 Valid, 2761 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:26:35,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57907 states. [2022-01-18 13:26:36,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57907 to 24361. [2022-01-18 13:26:36,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24361 states, 24360 states have (on average 4.0101395730706075) internal successors, (97687), 24360 states have internal predecessors, (97687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:36,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24361 states to 24361 states and 97687 transitions. [2022-01-18 13:26:36,610 INFO L78 Accepts]: Start accepts. Automaton has 24361 states and 97687 transitions. Word has length 117 [2022-01-18 13:26:36,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:36,610 INFO L470 AbstractCegarLoop]: Abstraction has 24361 states and 97687 transitions. [2022-01-18 13:26:36,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:36,610 INFO L276 IsEmpty]: Start isEmpty. Operand 24361 states and 97687 transitions. [2022-01-18 13:26:36,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:26:36,655 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:36,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:26:36,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-01-18 13:26:36,655 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:26:36,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:36,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1907465343, now seen corresponding path program 103 times [2022-01-18 13:26:36,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:36,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183092176] [2022-01-18 13:26:36,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:36,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:37,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:37,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:37,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183092176] [2022-01-18 13:26:37,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183092176] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:37,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:37,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:26:37,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707287999] [2022-01-18 13:26:37,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:37,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:26:37,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:37,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:26:37,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:26:37,437 INFO L87 Difference]: Start difference. First operand 24361 states and 97687 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:38,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:38,950 INFO L93 Difference]: Finished difference Result 58489 states and 229430 transitions. [2022-01-18 13:26:38,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:26:38,951 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:26:38,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:39,135 INFO L225 Difference]: With dead ends: 58489 [2022-01-18 13:26:39,135 INFO L226 Difference]: Without dead ends: 57862 [2022-01-18 13:26:39,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:26:39,136 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 749 mSDsluCounter, 3088 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 2914 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:39,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [749 Valid, 2914 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:26:39,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57862 states. [2022-01-18 13:26:39,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57862 to 24316. [2022-01-18 13:26:40,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.011515525395846) internal successors, (97540), 24315 states have internal predecessors, (97540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:40,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97540 transitions. [2022-01-18 13:26:40,082 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97540 transitions. Word has length 117 [2022-01-18 13:26:40,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:40,082 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97540 transitions. [2022-01-18 13:26:40,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:40,082 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97540 transitions. [2022-01-18 13:26:40,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:26:40,128 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:40,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:26:40,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-01-18 13:26:40,128 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:26:40,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:40,128 INFO L85 PathProgramCache]: Analyzing trace with hash -44104503, now seen corresponding path program 104 times [2022-01-18 13:26:40,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:40,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894150742] [2022-01-18 13:26:40,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:40,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:40,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:40,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:40,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894150742] [2022-01-18 13:26:40,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894150742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:40,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:40,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:26:40,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233966039] [2022-01-18 13:26:40,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:40,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:26:40,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:40,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:26:40,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:26:40,660 INFO L87 Difference]: Start difference. First operand 24316 states and 97540 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:42,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:42,299 INFO L93 Difference]: Finished difference Result 57724 states and 226856 transitions. [2022-01-18 13:26:42,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:26:42,299 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:26:42,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:42,492 INFO L225 Difference]: With dead ends: 57724 [2022-01-18 13:26:42,492 INFO L226 Difference]: Without dead ends: 57130 [2022-01-18 13:26:42,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:26:42,493 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 744 mSDsluCounter, 2986 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 2818 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:42,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [744 Valid, 2818 Invalid, 1321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:26:42,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57130 states. [2022-01-18 13:26:43,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57130 to 24352. [2022-01-18 13:26:43,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24352 states, 24351 states have (on average 4.01014332060285) internal successors, (97651), 24351 states have internal predecessors, (97651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:43,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24352 states to 24352 states and 97651 transitions. [2022-01-18 13:26:43,552 INFO L78 Accepts]: Start accepts. Automaton has 24352 states and 97651 transitions. Word has length 117 [2022-01-18 13:26:43,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:43,553 INFO L470 AbstractCegarLoop]: Abstraction has 24352 states and 97651 transitions. [2022-01-18 13:26:43,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:43,553 INFO L276 IsEmpty]: Start isEmpty. Operand 24352 states and 97651 transitions. [2022-01-18 13:26:43,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:26:43,601 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:43,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:26:43,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-01-18 13:26:43,601 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:26:43,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:43,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1015906591, now seen corresponding path program 105 times [2022-01-18 13:26:43,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:43,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048217119] [2022-01-18 13:26:43,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:43,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:44,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:44,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:44,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048217119] [2022-01-18 13:26:44,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048217119] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:44,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:44,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:26:44,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143335907] [2022-01-18 13:26:44,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:44,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:26:44,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:44,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:26:44,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:26:44,209 INFO L87 Difference]: Start difference. First operand 24352 states and 97651 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:45,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:45,619 INFO L93 Difference]: Finished difference Result 57235 states and 225263 transitions. [2022-01-18 13:26:45,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:26:45,619 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:26:45,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:45,801 INFO L225 Difference]: With dead ends: 57235 [2022-01-18 13:26:45,801 INFO L226 Difference]: Without dead ends: 56644 [2022-01-18 13:26:45,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:26:45,802 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 736 mSDsluCounter, 2833 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:45,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [736 Valid, 2695 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:26:45,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56644 states. [2022-01-18 13:26:46,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56644 to 24316. [2022-01-18 13:26:46,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.011022002878882) internal successors, (97528), 24315 states have internal predecessors, (97528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:46,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97528 transitions. [2022-01-18 13:26:46,727 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97528 transitions. Word has length 117 [2022-01-18 13:26:46,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:46,727 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97528 transitions. [2022-01-18 13:26:46,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:46,728 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97528 transitions. [2022-01-18 13:26:46,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:26:46,772 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:46,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:26:46,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-01-18 13:26:46,772 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:26:46,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:46,773 INFO L85 PathProgramCache]: Analyzing trace with hash 408070889, now seen corresponding path program 106 times [2022-01-18 13:26:46,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:46,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553491504] [2022-01-18 13:26:46,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:46,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:47,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:47,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:47,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553491504] [2022-01-18 13:26:47,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553491504] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:47,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:47,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:26:47,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562448209] [2022-01-18 13:26:47,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:47,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:26:47,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:47,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:26:47,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:26:47,389 INFO L87 Difference]: Start difference. First operand 24316 states and 97528 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:48,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:48,932 INFO L93 Difference]: Finished difference Result 57820 states and 227219 transitions. [2022-01-18 13:26:48,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:26:48,932 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:26:48,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:49,112 INFO L225 Difference]: With dead ends: 57820 [2022-01-18 13:26:49,112 INFO L226 Difference]: Without dead ends: 57238 [2022-01-18 13:26:49,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:26:49,112 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 697 mSDsluCounter, 2997 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:49,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [697 Valid, 2826 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 13:26:49,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57238 states. [2022-01-18 13:26:49,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57238 to 24352. [2022-01-18 13:26:49,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24352 states, 24351 states have (on average 4.009650527699068) internal successors, (97639), 24351 states have internal predecessors, (97639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:50,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24352 states to 24352 states and 97639 transitions. [2022-01-18 13:26:50,060 INFO L78 Accepts]: Start accepts. Automaton has 24352 states and 97639 transitions. Word has length 117 [2022-01-18 13:26:50,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:50,060 INFO L470 AbstractCegarLoop]: Abstraction has 24352 states and 97639 transitions. [2022-01-18 13:26:50,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:50,060 INFO L276 IsEmpty]: Start isEmpty. Operand 24352 states and 97639 transitions. [2022-01-18 13:26:50,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:26:50,106 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:50,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:26:50,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-01-18 13:26:50,106 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:26:50,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:50,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1274455233, now seen corresponding path program 107 times [2022-01-18 13:26:50,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:50,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115305385] [2022-01-18 13:26:50,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:50,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:50,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:50,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:50,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115305385] [2022-01-18 13:26:50,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115305385] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:50,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:50,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:26:50,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981631639] [2022-01-18 13:26:50,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:50,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:26:50,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:50,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:26:50,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:26:50,702 INFO L87 Difference]: Start difference. First operand 24352 states and 97639 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:52,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:52,167 INFO L93 Difference]: Finished difference Result 57235 states and 225251 transitions. [2022-01-18 13:26:52,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:26:52,167 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:26:52,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:52,634 INFO L225 Difference]: With dead ends: 57235 [2022-01-18 13:26:52,634 INFO L226 Difference]: Without dead ends: 56632 [2022-01-18 13:26:52,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:26:52,634 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 609 mSDsluCounter, 3046 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:52,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [609 Valid, 2868 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:26:52,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56632 states. [2022-01-18 13:26:53,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56632 to 24304. [2022-01-18 13:26:53,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24304 states, 24303 states have (on average 4.011315475455705) internal successors, (97487), 24303 states have internal predecessors, (97487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:53,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24304 states to 24304 states and 97487 transitions. [2022-01-18 13:26:53,360 INFO L78 Accepts]: Start accepts. Automaton has 24304 states and 97487 transitions. Word has length 117 [2022-01-18 13:26:53,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:53,360 INFO L470 AbstractCegarLoop]: Abstraction has 24304 states and 97487 transitions. [2022-01-18 13:26:53,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:53,360 INFO L276 IsEmpty]: Start isEmpty. Operand 24304 states and 97487 transitions. [2022-01-18 13:26:53,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:26:53,406 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:53,406 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:26:53,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-01-18 13:26:53,406 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:26:53,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:53,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1721054147, now seen corresponding path program 108 times [2022-01-18 13:26:53,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:53,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497629763] [2022-01-18 13:26:53,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:53,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:54,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:54,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:54,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497629763] [2022-01-18 13:26:54,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497629763] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:54,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:54,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:26:54,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764318202] [2022-01-18 13:26:54,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:54,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:26:54,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:54,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:26:54,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:26:54,202 INFO L87 Difference]: Start difference. First operand 24304 states and 97487 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:55,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:55,646 INFO L93 Difference]: Finished difference Result 58312 states and 229047 transitions. [2022-01-18 13:26:55,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:26:55,647 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:26:55,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:55,828 INFO L225 Difference]: With dead ends: 58312 [2022-01-18 13:26:55,828 INFO L226 Difference]: Without dead ends: 57325 [2022-01-18 13:26:55,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:26:55,828 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 868 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 2677 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:55,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [868 Valid, 2677 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:26:55,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57325 states. [2022-01-18 13:26:56,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57325 to 24412. [2022-01-18 13:26:56,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24412 states, 24411 states have (on average 4.007209864405391) internal successors, (97820), 24411 states have internal predecessors, (97820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:56,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24412 states to 24412 states and 97820 transitions. [2022-01-18 13:26:56,747 INFO L78 Accepts]: Start accepts. Automaton has 24412 states and 97820 transitions. Word has length 117 [2022-01-18 13:26:56,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:56,748 INFO L470 AbstractCegarLoop]: Abstraction has 24412 states and 97820 transitions. [2022-01-18 13:26:56,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:56,748 INFO L276 IsEmpty]: Start isEmpty. Operand 24412 states and 97820 transitions. [2022-01-18 13:26:56,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:26:56,792 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:56,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:26:56,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-01-18 13:26:56,793 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:26:56,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:56,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1204947815, now seen corresponding path program 109 times [2022-01-18 13:26:56,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:56,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197275097] [2022-01-18 13:26:56,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:56,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:57,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:57,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:57,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197275097] [2022-01-18 13:26:57,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197275097] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:57,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:57,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:26:57,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465297247] [2022-01-18 13:26:57,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:57,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:26:57,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:57,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:26:57,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:26:57,380 INFO L87 Difference]: Start difference. First operand 24412 states and 97820 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:59,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:59,012 INFO L93 Difference]: Finished difference Result 57916 states and 227511 transitions. [2022-01-18 13:26:59,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:26:59,012 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:26:59,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:59,217 INFO L225 Difference]: With dead ends: 57916 [2022-01-18 13:26:59,217 INFO L226 Difference]: Without dead ends: 57334 [2022-01-18 13:26:59,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:26:59,217 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 711 mSDsluCounter, 3224 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:59,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [711 Valid, 3025 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:26:59,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57334 states. [2022-01-18 13:26:59,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57334 to 24448. [2022-01-18 13:26:59,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24448 states, 24447 states have (on average 4.005849388473023) internal successors, (97931), 24447 states have internal predecessors, (97931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:00,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24448 states to 24448 states and 97931 transitions. [2022-01-18 13:27:00,239 INFO L78 Accepts]: Start accepts. Automaton has 24448 states and 97931 transitions. Word has length 117 [2022-01-18 13:27:00,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:00,239 INFO L470 AbstractCegarLoop]: Abstraction has 24448 states and 97931 transitions. [2022-01-18 13:27:00,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:00,239 INFO L276 IsEmpty]: Start isEmpty. Operand 24448 states and 97931 transitions. [2022-01-18 13:27:00,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:00,285 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:00,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:00,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-01-18 13:27:00,285 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:00,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:00,286 INFO L85 PathProgramCache]: Analyzing trace with hash -477578307, now seen corresponding path program 110 times [2022-01-18 13:27:00,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:00,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747267552] [2022-01-18 13:27:00,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:00,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:00,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:00,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:00,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747267552] [2022-01-18 13:27:00,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747267552] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:00,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:00,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:27:00,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341189190] [2022-01-18 13:27:00,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:00,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:27:00,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:00,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:27:00,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:00,786 INFO L87 Difference]: Start difference. First operand 24448 states and 97931 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:02,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:02,252 INFO L93 Difference]: Finished difference Result 57331 states and 225543 transitions. [2022-01-18 13:27:02,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:27:02,252 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:27:02,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:02,432 INFO L225 Difference]: With dead ends: 57331 [2022-01-18 13:27:02,432 INFO L226 Difference]: Without dead ends: 56596 [2022-01-18 13:27:02,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:27:02,433 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 662 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 2765 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:02,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [662 Valid, 2765 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:27:02,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56596 states. [2022-01-18 13:27:03,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56596 to 24268. [2022-01-18 13:27:03,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24268 states, 24267 states have (on average 4.0112086372439935) internal successors, (97340), 24267 states have internal predecessors, (97340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:03,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24268 states to 24268 states and 97340 transitions. [2022-01-18 13:27:03,363 INFO L78 Accepts]: Start accepts. Automaton has 24268 states and 97340 transitions. Word has length 117 [2022-01-18 13:27:03,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:03,363 INFO L470 AbstractCegarLoop]: Abstraction has 24268 states and 97340 transitions. [2022-01-18 13:27:03,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:03,363 INFO L276 IsEmpty]: Start isEmpty. Operand 24268 states and 97340 transitions. [2022-01-18 13:27:03,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:03,407 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:03,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:03,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-01-18 13:27:03,408 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:03,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:03,408 INFO L85 PathProgramCache]: Analyzing trace with hash -432630929, now seen corresponding path program 111 times [2022-01-18 13:27:03,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:03,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146959105] [2022-01-18 13:27:03,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:03,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:03,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:03,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:03,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146959105] [2022-01-18 13:27:03,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146959105] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:03,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:03,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:27:03,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674642193] [2022-01-18 13:27:03,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:03,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:27:03,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:03,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:27:03,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:03,980 INFO L87 Difference]: Start difference. First operand 24268 states and 97340 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:05,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:05,613 INFO L93 Difference]: Finished difference Result 57928 states and 227613 transitions. [2022-01-18 13:27:05,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:27:05,614 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:27:05,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:05,795 INFO L225 Difference]: With dead ends: 57928 [2022-01-18 13:27:05,795 INFO L226 Difference]: Without dead ends: 57334 [2022-01-18 13:27:05,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:27:05,795 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 768 mSDsluCounter, 2966 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 2806 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:05,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [768 Valid, 2806 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:27:05,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57334 states. [2022-01-18 13:27:06,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57334 to 24349. [2022-01-18 13:27:06,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24349 states, 24348 states have (on average 4.0099392147198945) internal successors, (97634), 24348 states have internal predecessors, (97634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:06,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24349 states to 24349 states and 97634 transitions. [2022-01-18 13:27:06,733 INFO L78 Accepts]: Start accepts. Automaton has 24349 states and 97634 transitions. Word has length 117 [2022-01-18 13:27:06,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:06,733 INFO L470 AbstractCegarLoop]: Abstraction has 24349 states and 97634 transitions. [2022-01-18 13:27:06,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:06,733 INFO L276 IsEmpty]: Start isEmpty. Operand 24349 states and 97634 transitions. [2022-01-18 13:27:06,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:06,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:06,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:06,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-01-18 13:27:06,778 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:06,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:06,778 INFO L85 PathProgramCache]: Analyzing trace with hash 900236687, now seen corresponding path program 112 times [2022-01-18 13:27:06,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:06,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765543250] [2022-01-18 13:27:06,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:06,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:07,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:07,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:07,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765543250] [2022-01-18 13:27:07,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765543250] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:07,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:07,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:27:07,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184947308] [2022-01-18 13:27:07,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:07,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:27:07,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:07,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:27:07,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:07,377 INFO L87 Difference]: Start difference. First operand 24349 states and 97634 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:09,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:09,064 INFO L93 Difference]: Finished difference Result 57916 states and 227538 transitions. [2022-01-18 13:27:09,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:27:09,064 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:27:09,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:09,271 INFO L225 Difference]: With dead ends: 57916 [2022-01-18 13:27:09,271 INFO L226 Difference]: Without dead ends: 57289 [2022-01-18 13:27:09,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:27:09,271 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 925 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:09,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [925 Valid, 2592 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1125 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:27:09,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57289 states. [2022-01-18 13:27:09,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57289 to 24304. [2022-01-18 13:27:09,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24304 states, 24303 states have (on average 4.011315475455705) internal successors, (97487), 24303 states have internal predecessors, (97487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:10,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24304 states to 24304 states and 97487 transitions. [2022-01-18 13:27:10,017 INFO L78 Accepts]: Start accepts. Automaton has 24304 states and 97487 transitions. Word has length 117 [2022-01-18 13:27:10,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:10,017 INFO L470 AbstractCegarLoop]: Abstraction has 24304 states and 97487 transitions. [2022-01-18 13:27:10,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:10,018 INFO L276 IsEmpty]: Start isEmpty. Operand 24304 states and 97487 transitions. [2022-01-18 13:27:10,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:10,064 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:10,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:10,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-01-18 13:27:10,064 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:10,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:10,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1051333159, now seen corresponding path program 113 times [2022-01-18 13:27:10,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:10,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810508919] [2022-01-18 13:27:10,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:10,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:10,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:10,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:10,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810508919] [2022-01-18 13:27:10,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810508919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:10,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:10,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:27:10,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270840294] [2022-01-18 13:27:10,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:10,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:27:10,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:10,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:27:10,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:10,850 INFO L87 Difference]: Start difference. First operand 24304 states and 97487 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:12,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:12,274 INFO L93 Difference]: Finished difference Result 58477 states and 229410 transitions. [2022-01-18 13:27:12,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:27:12,274 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:27:12,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:12,457 INFO L225 Difference]: With dead ends: 58477 [2022-01-18 13:27:12,457 INFO L226 Difference]: Without dead ends: 57883 [2022-01-18 13:27:12,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:27:12,458 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 853 mSDsluCounter, 2918 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 2765 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:12,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [853 Valid, 2765 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1229 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:27:12,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57883 states. [2022-01-18 13:27:13,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57883 to 24340. [2022-01-18 13:27:13,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24340 states, 24339 states have (on average 4.009942890011915) internal successors, (97598), 24339 states have internal predecessors, (97598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:13,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24340 states to 24340 states and 97598 transitions. [2022-01-18 13:27:13,382 INFO L78 Accepts]: Start accepts. Automaton has 24340 states and 97598 transitions. Word has length 117 [2022-01-18 13:27:13,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:13,383 INFO L470 AbstractCegarLoop]: Abstraction has 24340 states and 97598 transitions. [2022-01-18 13:27:13,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:13,383 INFO L276 IsEmpty]: Start isEmpty. Operand 24340 states and 97598 transitions. [2022-01-18 13:27:13,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:13,427 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:13,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:13,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-01-18 13:27:13,427 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:13,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:13,428 INFO L85 PathProgramCache]: Analyzing trace with hash 8677935, now seen corresponding path program 114 times [2022-01-18 13:27:13,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:13,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755129653] [2022-01-18 13:27:13,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:13,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:14,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:14,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:14,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755129653] [2022-01-18 13:27:14,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755129653] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:14,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:14,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:27:14,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780187313] [2022-01-18 13:27:14,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:14,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:27:14,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:14,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:27:14,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:14,021 INFO L87 Difference]: Start difference. First operand 24340 states and 97598 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:15,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:15,546 INFO L93 Difference]: Finished difference Result 57988 states and 227817 transitions. [2022-01-18 13:27:15,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:27:15,546 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:27:15,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:15,733 INFO L225 Difference]: With dead ends: 57988 [2022-01-18 13:27:15,733 INFO L226 Difference]: Without dead ends: 57397 [2022-01-18 13:27:15,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:27:15,733 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 804 mSDsluCounter, 2783 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 2649 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:15,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [804 Valid, 2649 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:27:15,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57397 states. [2022-01-18 13:27:16,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57397 to 24304. [2022-01-18 13:27:16,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24304 states, 24303 states have (on average 4.010821709254001) internal successors, (97475), 24303 states have internal predecessors, (97475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:16,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24304 states to 24304 states and 97475 transitions. [2022-01-18 13:27:16,725 INFO L78 Accepts]: Start accepts. Automaton has 24304 states and 97475 transitions. Word has length 117 [2022-01-18 13:27:16,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:16,725 INFO L470 AbstractCegarLoop]: Abstraction has 24304 states and 97475 transitions. [2022-01-18 13:27:16,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:16,725 INFO L276 IsEmpty]: Start isEmpty. Operand 24304 states and 97475 transitions. [2022-01-18 13:27:16,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:16,771 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:16,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:16,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-01-18 13:27:16,771 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:16,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:16,772 INFO L85 PathProgramCache]: Analyzing trace with hash -599157767, now seen corresponding path program 115 times [2022-01-18 13:27:16,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:16,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856424657] [2022-01-18 13:27:16,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:16,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:17,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:17,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:17,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856424657] [2022-01-18 13:27:17,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856424657] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:17,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:17,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:27:17,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817623481] [2022-01-18 13:27:17,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:17,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:27:17,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:17,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:27:17,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:17,398 INFO L87 Difference]: Start difference. First operand 24304 states and 97475 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:18,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:18,893 INFO L93 Difference]: Finished difference Result 58465 states and 229368 transitions. [2022-01-18 13:27:18,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:27:18,894 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:27:18,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:19,331 INFO L225 Difference]: With dead ends: 58465 [2022-01-18 13:27:19,331 INFO L226 Difference]: Without dead ends: 57883 [2022-01-18 13:27:19,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:27:19,332 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 745 mSDsluCounter, 3064 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:19,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [745 Valid, 2885 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:27:19,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57883 states. [2022-01-18 13:27:19,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57883 to 24340. [2022-01-18 13:27:19,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24340 states, 24339 states have (on average 4.009449854143556) internal successors, (97586), 24339 states have internal predecessors, (97586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:20,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24340 states to 24340 states and 97586 transitions. [2022-01-18 13:27:20,038 INFO L78 Accepts]: Start accepts. Automaton has 24340 states and 97586 transitions. Word has length 117 [2022-01-18 13:27:20,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:20,039 INFO L470 AbstractCegarLoop]: Abstraction has 24340 states and 97586 transitions. [2022-01-18 13:27:20,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:20,039 INFO L276 IsEmpty]: Start isEmpty. Operand 24340 states and 97586 transitions. [2022-01-18 13:27:20,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:20,083 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:20,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:20,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-01-18 13:27:20,084 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:20,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:20,084 INFO L85 PathProgramCache]: Analyzing trace with hash 2013283407, now seen corresponding path program 116 times [2022-01-18 13:27:20,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:20,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606282151] [2022-01-18 13:27:20,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:20,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:20,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:20,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:20,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606282151] [2022-01-18 13:27:20,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606282151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:20,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:20,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:27:20,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322229562] [2022-01-18 13:27:20,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:20,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:27:20,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:20,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:27:20,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:20,900 INFO L87 Difference]: Start difference. First operand 24340 states and 97586 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:22,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:22,394 INFO L93 Difference]: Finished difference Result 57988 states and 227805 transitions. [2022-01-18 13:27:22,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:27:22,394 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:27:22,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:22,576 INFO L225 Difference]: With dead ends: 57988 [2022-01-18 13:27:22,576 INFO L226 Difference]: Without dead ends: 57385 [2022-01-18 13:27:22,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:27:22,576 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 845 mSDsluCounter, 2761 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 2625 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:22,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [845 Valid, 2625 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:27:22,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57385 states. [2022-01-18 13:27:23,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57385 to 24292. [2022-01-18 13:27:23,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24292 states, 24291 states have (on average 4.011115227862171) internal successors, (97434), 24291 states have internal predecessors, (97434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:23,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24292 states to 24292 states and 97434 transitions. [2022-01-18 13:27:23,507 INFO L78 Accepts]: Start accepts. Automaton has 24292 states and 97434 transitions. Word has length 117 [2022-01-18 13:27:23,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:23,507 INFO L470 AbstractCegarLoop]: Abstraction has 24292 states and 97434 transitions. [2022-01-18 13:27:23,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:23,507 INFO L276 IsEmpty]: Start isEmpty. Operand 24292 states and 97434 transitions. [2022-01-18 13:27:23,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:23,551 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:23,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:23,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-01-18 13:27:23,552 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:23,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:23,552 INFO L85 PathProgramCache]: Analyzing trace with hash 886413671, now seen corresponding path program 117 times [2022-01-18 13:27:23,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:23,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196125199] [2022-01-18 13:27:23,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:23,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:24,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:24,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:24,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196125199] [2022-01-18 13:27:24,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196125199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:24,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:24,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:27:24,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541810988] [2022-01-18 13:27:24,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:24,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:27:24,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:24,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:27:24,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:24,059 INFO L87 Difference]: Start difference. First operand 24292 states and 97434 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:25,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:25,681 INFO L93 Difference]: Finished difference Result 57103 states and 224764 transitions. [2022-01-18 13:27:25,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:27:25,681 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:27:25,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:25,876 INFO L225 Difference]: With dead ends: 57103 [2022-01-18 13:27:25,876 INFO L226 Difference]: Without dead ends: 56509 [2022-01-18 13:27:25,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=222, Invalid=480, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:27:25,876 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 665 mSDsluCounter, 3141 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 2952 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:25,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [665 Valid, 2952 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:27:25,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56509 states. [2022-01-18 13:27:26,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56509 to 24400. [2022-01-18 13:27:26,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24400 states, 24399 states have (on average 4.00995942456658) internal successors, (97839), 24399 states have internal predecessors, (97839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:26,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24400 states to 24400 states and 97839 transitions. [2022-01-18 13:27:26,618 INFO L78 Accepts]: Start accepts. Automaton has 24400 states and 97839 transitions. Word has length 117 [2022-01-18 13:27:26,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:26,618 INFO L470 AbstractCegarLoop]: Abstraction has 24400 states and 97839 transitions. [2022-01-18 13:27:26,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:26,618 INFO L276 IsEmpty]: Start isEmpty. Operand 24400 states and 97839 transitions. [2022-01-18 13:27:26,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:26,833 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:26,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:26,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-01-18 13:27:26,833 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:26,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:26,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1946424765, now seen corresponding path program 118 times [2022-01-18 13:27:26,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:26,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977518968] [2022-01-18 13:27:26,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:26,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:27,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:27,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:27,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977518968] [2022-01-18 13:27:27,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977518968] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:27,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:27,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:27:27,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432058092] [2022-01-18 13:27:27,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:27,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:27:27,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:27,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:27:27,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:27,349 INFO L87 Difference]: Start difference. First operand 24400 states and 97839 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:28,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:28,759 INFO L93 Difference]: Finished difference Result 57064 states and 224608 transitions. [2022-01-18 13:27:28,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:27:28,759 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:27:28,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:28,939 INFO L225 Difference]: With dead ends: 57064 [2022-01-18 13:27:28,939 INFO L226 Difference]: Without dead ends: 56473 [2022-01-18 13:27:28,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=222, Invalid=480, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:27:28,939 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 760 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 2664 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:28,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [760 Valid, 2664 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:27:29,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56473 states. [2022-01-18 13:27:29,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56473 to 24364. [2022-01-18 13:27:29,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.009851003570989) internal successors, (97692), 24363 states have internal predecessors, (97692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:29,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97692 transitions. [2022-01-18 13:27:29,840 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97692 transitions. Word has length 117 [2022-01-18 13:27:29,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:29,841 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97692 transitions. [2022-01-18 13:27:29,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:29,841 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97692 transitions. [2022-01-18 13:27:29,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:29,885 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:29,885 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:29,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-01-18 13:27:29,885 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:29,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:29,886 INFO L85 PathProgramCache]: Analyzing trace with hash -558523761, now seen corresponding path program 119 times [2022-01-18 13:27:29,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:29,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613924669] [2022-01-18 13:27:29,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:29,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:30,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:30,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:30,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613924669] [2022-01-18 13:27:30,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613924669] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:30,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:30,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:27:30,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606661253] [2022-01-18 13:27:30,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:30,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:27:30,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:30,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:27:30,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:30,492 INFO L87 Difference]: Start difference. First operand 24364 states and 97692 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:32,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:32,078 INFO L93 Difference]: Finished difference Result 56686 states and 223429 transitions. [2022-01-18 13:27:32,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:27:32,078 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:27:32,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:32,259 INFO L225 Difference]: With dead ends: 56686 [2022-01-18 13:27:32,259 INFO L226 Difference]: Without dead ends: 55843 [2022-01-18 13:27:32,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=224, Invalid=478, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:27:32,259 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 614 mSDsluCounter, 2864 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:32,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [614 Valid, 2699 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:27:32,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55843 states. [2022-01-18 13:27:33,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55843 to 24292. [2022-01-18 13:27:33,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24292 states, 24291 states have (on average 4.010127207607756) internal successors, (97410), 24291 states have internal predecessors, (97410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:33,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24292 states to 24292 states and 97410 transitions. [2022-01-18 13:27:33,256 INFO L78 Accepts]: Start accepts. Automaton has 24292 states and 97410 transitions. Word has length 117 [2022-01-18 13:27:33,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:33,256 INFO L470 AbstractCegarLoop]: Abstraction has 24292 states and 97410 transitions. [2022-01-18 13:27:33,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:33,257 INFO L276 IsEmpty]: Start isEmpty. Operand 24292 states and 97410 transitions. [2022-01-18 13:27:33,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:33,302 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:33,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:33,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-01-18 13:27:33,302 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:33,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:33,302 INFO L85 PathProgramCache]: Analyzing trace with hash -943150745, now seen corresponding path program 120 times [2022-01-18 13:27:33,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:33,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829981694] [2022-01-18 13:27:33,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:33,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:33,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:33,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:33,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829981694] [2022-01-18 13:27:33,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829981694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:33,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:33,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:27:33,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388349925] [2022-01-18 13:27:33,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:33,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:27:33,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:33,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:27:33,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:33,875 INFO L87 Difference]: Start difference. First operand 24292 states and 97410 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:35,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:35,354 INFO L93 Difference]: Finished difference Result 57307 states and 225520 transitions. [2022-01-18 13:27:35,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:27:35,354 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:27:35,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:35,796 INFO L225 Difference]: With dead ends: 57307 [2022-01-18 13:27:35,797 INFO L226 Difference]: Without dead ends: 56725 [2022-01-18 13:27:35,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=224, Invalid=478, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:27:35,797 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 636 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 2688 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:35,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [636 Valid, 2688 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:27:35,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56725 states. [2022-01-18 13:27:36,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56725 to 24400. [2022-01-18 13:27:36,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24400 states, 24399 states have (on average 4.008975777695807) internal successors, (97815), 24399 states have internal predecessors, (97815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:36,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24400 states to 24400 states and 97815 transitions. [2022-01-18 13:27:36,500 INFO L78 Accepts]: Start accepts. Automaton has 24400 states and 97815 transitions. Word has length 117 [2022-01-18 13:27:36,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:36,500 INFO L470 AbstractCegarLoop]: Abstraction has 24400 states and 97815 transitions. [2022-01-18 13:27:36,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:36,503 INFO L276 IsEmpty]: Start isEmpty. Operand 24400 states and 97815 transitions. [2022-01-18 13:27:36,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:36,549 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:36,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:36,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-01-18 13:27:36,549 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:36,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:36,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1669290429, now seen corresponding path program 121 times [2022-01-18 13:27:36,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:36,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105604095] [2022-01-18 13:27:36,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:36,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:37,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:37,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:37,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105604095] [2022-01-18 13:27:37,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105604095] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:37,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:37,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:27:37,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084664961] [2022-01-18 13:27:37,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:37,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:27:37,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:37,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:27:37,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:37,346 INFO L87 Difference]: Start difference. First operand 24400 states and 97815 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:38,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:38,768 INFO L93 Difference]: Finished difference Result 57280 states and 225394 transitions. [2022-01-18 13:27:38,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:27:38,768 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:27:38,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:38,949 INFO L225 Difference]: With dead ends: 57280 [2022-01-18 13:27:38,949 INFO L226 Difference]: Without dead ends: 56689 [2022-01-18 13:27:38,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=224, Invalid=478, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:27:38,949 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 657 mSDsluCounter, 2852 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 2707 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:38,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [657 Valid, 2707 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:27:39,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56689 states. [2022-01-18 13:27:39,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56689 to 24364. [2022-01-18 13:27:39,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.00886590321389) internal successors, (97668), 24363 states have internal predecessors, (97668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:39,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97668 transitions. [2022-01-18 13:27:39,895 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97668 transitions. Word has length 117 [2022-01-18 13:27:39,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:39,895 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97668 transitions. [2022-01-18 13:27:39,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:39,895 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97668 transitions. [2022-01-18 13:27:39,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:39,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:39,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:39,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-01-18 13:27:39,941 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:39,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:39,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1454703727, now seen corresponding path program 122 times [2022-01-18 13:27:39,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:39,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944001949] [2022-01-18 13:27:39,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:39,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:40,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:40,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:40,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944001949] [2022-01-18 13:27:40,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944001949] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:40,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:40,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:27:40,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187080317] [2022-01-18 13:27:40,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:40,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:27:40,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:40,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:27:40,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:40,537 INFO L87 Difference]: Start difference. First operand 24364 states and 97668 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:42,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:42,166 INFO L93 Difference]: Finished difference Result 56686 states and 223405 transitions. [2022-01-18 13:27:42,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:27:42,167 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:27:42,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:42,358 INFO L225 Difference]: With dead ends: 56686 [2022-01-18 13:27:42,358 INFO L226 Difference]: Without dead ends: 55819 [2022-01-18 13:27:42,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=226, Invalid=476, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:27:42,359 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 602 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 2507 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:42,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [602 Valid, 2507 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:27:42,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55819 states. [2022-01-18 13:27:42,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55819 to 24268. [2022-01-18 13:27:43,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24268 states, 24267 states have (on average 4.010219639840112) internal successors, (97316), 24267 states have internal predecessors, (97316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:43,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24268 states to 24268 states and 97316 transitions. [2022-01-18 13:27:43,105 INFO L78 Accepts]: Start accepts. Automaton has 24268 states and 97316 transitions. Word has length 117 [2022-01-18 13:27:43,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:43,105 INFO L470 AbstractCegarLoop]: Abstraction has 24268 states and 97316 transitions. [2022-01-18 13:27:43,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:43,106 INFO L276 IsEmpty]: Start isEmpty. Operand 24268 states and 97316 transitions. [2022-01-18 13:27:43,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:43,150 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:43,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:43,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-01-18 13:27:43,151 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:43,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:43,151 INFO L85 PathProgramCache]: Analyzing trace with hash 500065423, now seen corresponding path program 123 times [2022-01-18 13:27:43,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:43,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439512357] [2022-01-18 13:27:43,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:43,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:43,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:43,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:43,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439512357] [2022-01-18 13:27:43,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439512357] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:43,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:43,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:27:43,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696819870] [2022-01-18 13:27:43,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:43,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:27:43,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:43,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:27:43,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:43,985 INFO L87 Difference]: Start difference. First operand 24268 states and 97316 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:45,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:45,357 INFO L93 Difference]: Finished difference Result 56185 states and 221523 transitions. [2022-01-18 13:27:45,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:27:45,357 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:27:45,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:45,534 INFO L225 Difference]: With dead ends: 56185 [2022-01-18 13:27:45,534 INFO L226 Difference]: Without dead ends: 55198 [2022-01-18 13:27:45,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=479, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:27:45,535 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 628 mSDsluCounter, 2767 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:45,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [628 Valid, 2633 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:27:45,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55198 states. [2022-01-18 13:27:46,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55198 to 24664. [2022-01-18 13:27:46,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24664 states, 24663 states have (on average 4.005554879779426) internal successors, (98789), 24663 states have internal predecessors, (98789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:46,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24664 states to 24664 states and 98789 transitions. [2022-01-18 13:27:46,447 INFO L78 Accepts]: Start accepts. Automaton has 24664 states and 98789 transitions. Word has length 117 [2022-01-18 13:27:46,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:46,447 INFO L470 AbstractCegarLoop]: Abstraction has 24664 states and 98789 transitions. [2022-01-18 13:27:46,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:46,447 INFO L276 IsEmpty]: Start isEmpty. Operand 24664 states and 98789 transitions. [2022-01-18 13:27:46,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:46,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:46,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:46,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-01-18 13:27:46,498 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:46,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:46,499 INFO L85 PathProgramCache]: Analyzing trace with hash -868899911, now seen corresponding path program 124 times [2022-01-18 13:27:46,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:46,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599689979] [2022-01-18 13:27:46,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:46,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:47,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:47,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:47,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599689979] [2022-01-18 13:27:47,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599689979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:47,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:47,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:27:47,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572902971] [2022-01-18 13:27:47,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:47,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:27:47,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:47,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:27:47,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:47,080 INFO L87 Difference]: Start difference. First operand 24664 states and 98789 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:48,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:48,655 INFO L93 Difference]: Finished difference Result 56374 states and 221919 transitions. [2022-01-18 13:27:48,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:27:48,655 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:27:48,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:48,839 INFO L225 Difference]: With dead ends: 56374 [2022-01-18 13:27:48,840 INFO L226 Difference]: Without dead ends: 55792 [2022-01-18 13:27:48,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=479, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:27:48,840 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 783 mSDsluCounter, 2723 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 2599 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:48,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [783 Valid, 2599 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:27:48,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55792 states. [2022-01-18 13:27:49,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55792 to 24700. [2022-01-18 13:27:49,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24700 states, 24699 states have (on average 4.004210696789344) internal successors, (98900), 24699 states have internal predecessors, (98900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:49,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24700 states to 24700 states and 98900 transitions. [2022-01-18 13:27:49,830 INFO L78 Accepts]: Start accepts. Automaton has 24700 states and 98900 transitions. Word has length 117 [2022-01-18 13:27:49,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:49,830 INFO L470 AbstractCegarLoop]: Abstraction has 24700 states and 98900 transitions. [2022-01-18 13:27:49,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:49,830 INFO L276 IsEmpty]: Start isEmpty. Operand 24700 states and 98900 transitions. [2022-01-18 13:27:49,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:49,880 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:49,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:49,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-01-18 13:27:49,881 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:49,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:49,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1743541263, now seen corresponding path program 125 times [2022-01-18 13:27:49,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:49,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269271281] [2022-01-18 13:27:49,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:49,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:50,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:50,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:50,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269271281] [2022-01-18 13:27:50,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269271281] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:50,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:50,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:27:50,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130830891] [2022-01-18 13:27:50,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:50,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:27:50,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:50,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:27:50,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:50,436 INFO L87 Difference]: Start difference. First operand 24700 states and 98900 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:51,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:51,933 INFO L93 Difference]: Finished difference Result 55789 states and 219951 transitions. [2022-01-18 13:27:51,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:27:51,933 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:27:51,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:52,363 INFO L225 Difference]: With dead ends: 55789 [2022-01-18 13:27:52,363 INFO L226 Difference]: Without dead ends: 55090 [2022-01-18 13:27:52,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=479, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:27:52,363 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 605 mSDsluCounter, 2931 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 2767 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:52,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [605 Valid, 2767 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:27:52,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55090 states. [2022-01-18 13:27:52,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55090 to 24556. [2022-01-18 13:27:52,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24556 states, 24555 states have (on average 4.005212787619629) internal successors, (98348), 24555 states have internal predecessors, (98348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:53,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24556 states to 24556 states and 98348 transitions. [2022-01-18 13:27:53,053 INFO L78 Accepts]: Start accepts. Automaton has 24556 states and 98348 transitions. Word has length 117 [2022-01-18 13:27:53,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:53,053 INFO L470 AbstractCegarLoop]: Abstraction has 24556 states and 98348 transitions. [2022-01-18 13:27:53,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:53,053 INFO L276 IsEmpty]: Start isEmpty. Operand 24556 states and 98348 transitions. [2022-01-18 13:27:53,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:53,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:53,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:53,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-01-18 13:27:53,099 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:53,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:53,099 INFO L85 PathProgramCache]: Analyzing trace with hash -2009769815, now seen corresponding path program 126 times [2022-01-18 13:27:53,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:53,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329709366] [2022-01-18 13:27:53,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:53,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:53,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:53,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:53,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329709366] [2022-01-18 13:27:53,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329709366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:53,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:53,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:27:53,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716448605] [2022-01-18 13:27:53,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:53,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:27:53,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:53,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:27:53,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:53,697 INFO L87 Difference]: Start difference. First operand 24556 states and 98348 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:55,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:55,312 INFO L93 Difference]: Finished difference Result 55753 states and 219804 transitions. [2022-01-18 13:27:55,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:27:55,312 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:27:55,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:55,488 INFO L225 Difference]: With dead ends: 55753 [2022-01-18 13:27:55,488 INFO L226 Difference]: Without dead ends: 55171 [2022-01-18 13:27:55,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=227, Invalid=475, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:27:55,488 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 638 mSDsluCounter, 2812 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:55,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [638 Valid, 2674 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 13:27:55,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55171 states. [2022-01-18 13:27:56,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55171 to 24664. [2022-01-18 13:27:56,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24664 states, 24663 states have (on average 4.004095203341037) internal successors, (98753), 24663 states have internal predecessors, (98753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:56,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24664 states to 24664 states and 98753 transitions. [2022-01-18 13:27:56,452 INFO L78 Accepts]: Start accepts. Automaton has 24664 states and 98753 transitions. Word has length 117 [2022-01-18 13:27:56,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:56,452 INFO L470 AbstractCegarLoop]: Abstraction has 24664 states and 98753 transitions. [2022-01-18 13:27:56,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:56,452 INFO L276 IsEmpty]: Start isEmpty. Operand 24664 states and 98753 transitions. [2022-01-18 13:27:56,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:56,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:56,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:56,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-01-18 13:27:56,502 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:56,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:56,503 INFO L85 PathProgramCache]: Analyzing trace with hash 602671359, now seen corresponding path program 127 times [2022-01-18 13:27:56,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:56,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379813154] [2022-01-18 13:27:56,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:56,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:57,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:57,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379813154] [2022-01-18 13:27:57,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379813154] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:57,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:57,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:27:57,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789167976] [2022-01-18 13:27:57,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:57,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:27:57,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:57,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:27:57,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:57,057 INFO L87 Difference]: Start difference. First operand 24664 states and 98753 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:58,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:58,724 INFO L93 Difference]: Finished difference Result 55726 states and 219678 transitions. [2022-01-18 13:27:58,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:27:58,724 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:27:58,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:58,923 INFO L225 Difference]: With dead ends: 55726 [2022-01-18 13:27:58,923 INFO L226 Difference]: Without dead ends: 55135 [2022-01-18 13:27:58,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=227, Invalid=475, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:27:58,924 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 636 mSDsluCounter, 2719 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 2594 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:58,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [636 Valid, 2594 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1131 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:27:59,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55135 states. [2022-01-18 13:27:59,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55135 to 24628. [2022-01-18 13:27:59,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24628 states, 24627 states have (on average 4.003979372233728) internal successors, (98606), 24627 states have internal predecessors, (98606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:59,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24628 states to 24628 states and 98606 transitions. [2022-01-18 13:27:59,666 INFO L78 Accepts]: Start accepts. Automaton has 24628 states and 98606 transitions. Word has length 117 [2022-01-18 13:27:59,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:59,666 INFO L470 AbstractCegarLoop]: Abstraction has 24628 states and 98606 transitions. [2022-01-18 13:27:59,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:59,667 INFO L276 IsEmpty]: Start isEmpty. Operand 24628 states and 98606 transitions. [2022-01-18 13:27:59,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:27:59,717 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:59,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:27:59,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-01-18 13:27:59,717 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:27:59,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:59,717 INFO L85 PathProgramCache]: Analyzing trace with hash 388084657, now seen corresponding path program 128 times [2022-01-18 13:27:59,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:59,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033594308] [2022-01-18 13:27:59,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:59,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:00,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:00,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:00,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033594308] [2022-01-18 13:28:00,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033594308] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:00,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:00,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:28:00,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936958252] [2022-01-18 13:28:00,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:00,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:28:00,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:00,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:28:00,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:00,582 INFO L87 Difference]: Start difference. First operand 24628 states and 98606 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:01,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:01,989 INFO L93 Difference]: Finished difference Result 55132 states and 217689 transitions. [2022-01-18 13:28:01,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:28:01,989 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:28:01,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:02,151 INFO L225 Difference]: With dead ends: 55132 [2022-01-18 13:28:02,151 INFO L226 Difference]: Without dead ends: 53473 [2022-01-18 13:28:02,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=229, Invalid=473, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:28:02,152 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 549 mSDsluCounter, 2532 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:02,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [549 Valid, 2439 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 13:28:02,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53473 states. [2022-01-18 13:28:02,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53473 to 23740. [2022-01-18 13:28:03,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23740 states, 23739 states have (on average 4.016344412148785) internal successors, (95344), 23739 states have internal predecessors, (95344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:03,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23740 states to 23740 states and 95344 transitions. [2022-01-18 13:28:03,094 INFO L78 Accepts]: Start accepts. Automaton has 23740 states and 95344 transitions. Word has length 117 [2022-01-18 13:28:03,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:03,094 INFO L470 AbstractCegarLoop]: Abstraction has 23740 states and 95344 transitions. [2022-01-18 13:28:03,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:03,095 INFO L276 IsEmpty]: Start isEmpty. Operand 23740 states and 95344 transitions. [2022-01-18 13:28:03,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:28:03,140 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:03,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:28:03,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-01-18 13:28:03,140 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:28:03,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:03,140 INFO L85 PathProgramCache]: Analyzing trace with hash -514174005, now seen corresponding path program 129 times [2022-01-18 13:28:03,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:03,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720578221] [2022-01-18 13:28:03,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:03,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:03,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:03,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:03,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720578221] [2022-01-18 13:28:03,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720578221] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:03,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:03,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:28:03,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283120775] [2022-01-18 13:28:03,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:03,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:28:03,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:03,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:28:03,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:03,718 INFO L87 Difference]: Start difference. First operand 23740 states and 95344 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:05,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:05,429 INFO L93 Difference]: Finished difference Result 61186 states and 240347 transitions. [2022-01-18 13:28:05,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:28:05,430 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:28:05,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:05,646 INFO L225 Difference]: With dead ends: 61186 [2022-01-18 13:28:05,646 INFO L226 Difference]: Without dead ends: 60199 [2022-01-18 13:28:05,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=219, Invalid=483, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:28:05,647 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 736 mSDsluCounter, 3040 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 2892 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:05,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [736 Valid, 2892 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:28:05,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60199 states. [2022-01-18 13:28:06,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60199 to 24344. [2022-01-18 13:28:06,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24344 states, 24343 states have (on average 4.0089142669350535) internal successors, (97589), 24343 states have internal predecessors, (97589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:06,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24344 states to 24344 states and 97589 transitions. [2022-01-18 13:28:06,682 INFO L78 Accepts]: Start accepts. Automaton has 24344 states and 97589 transitions. Word has length 117 [2022-01-18 13:28:06,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:06,682 INFO L470 AbstractCegarLoop]: Abstraction has 24344 states and 97589 transitions. [2022-01-18 13:28:06,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:06,682 INFO L276 IsEmpty]: Start isEmpty. Operand 24344 states and 97589 transitions. [2022-01-18 13:28:06,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:28:06,731 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:06,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:28:06,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-01-18 13:28:06,731 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:28:06,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:06,731 INFO L85 PathProgramCache]: Analyzing trace with hash 457378891, now seen corresponding path program 130 times [2022-01-18 13:28:06,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:06,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177113245] [2022-01-18 13:28:06,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:06,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:07,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:07,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:07,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177113245] [2022-01-18 13:28:07,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177113245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:07,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:07,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:28:07,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101355333] [2022-01-18 13:28:07,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:07,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:28:07,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:07,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:28:07,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:07,309 INFO L87 Difference]: Start difference. First operand 24344 states and 97589 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:08,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:08,875 INFO L93 Difference]: Finished difference Result 61375 states and 240743 transitions. [2022-01-18 13:28:08,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:28:08,875 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:28:08,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:09,340 INFO L225 Difference]: With dead ends: 61375 [2022-01-18 13:28:09,340 INFO L226 Difference]: Without dead ends: 60793 [2022-01-18 13:28:09,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=219, Invalid=483, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:28:09,340 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 812 mSDsluCounter, 3189 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 3016 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:09,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [812 Valid, 3016 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:28:09,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60793 states. [2022-01-18 13:28:10,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60793 to 24380. [2022-01-18 13:28:10,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24380 states, 24379 states have (on average 4.0075474793879975) internal successors, (97700), 24379 states have internal predecessors, (97700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:10,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24380 states to 24380 states and 97700 transitions. [2022-01-18 13:28:10,157 INFO L78 Accepts]: Start accepts. Automaton has 24380 states and 97700 transitions. Word has length 117 [2022-01-18 13:28:10,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:10,158 INFO L470 AbstractCegarLoop]: Abstraction has 24380 states and 97700 transitions. [2022-01-18 13:28:10,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:10,158 INFO L276 IsEmpty]: Start isEmpty. Operand 24380 states and 97700 transitions. [2022-01-18 13:28:10,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:28:10,205 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:10,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:28:10,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-01-18 13:28:10,205 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:28:10,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:10,205 INFO L85 PathProgramCache]: Analyzing trace with hash 947247649, now seen corresponding path program 131 times [2022-01-18 13:28:10,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:10,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831318007] [2022-01-18 13:28:10,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:10,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:10,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:10,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:10,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831318007] [2022-01-18 13:28:10,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831318007] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:10,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:10,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:28:10,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881132231] [2022-01-18 13:28:10,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:10,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:28:10,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:10,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:28:10,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:10,729 INFO L87 Difference]: Start difference. First operand 24380 states and 97700 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:12,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:12,555 INFO L93 Difference]: Finished difference Result 60790 states and 238775 transitions. [2022-01-18 13:28:12,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:28:12,555 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:28:12,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:12,745 INFO L225 Difference]: With dead ends: 60790 [2022-01-18 13:28:12,745 INFO L226 Difference]: Without dead ends: 60091 [2022-01-18 13:28:12,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=219, Invalid=483, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:28:12,745 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 641 mSDsluCounter, 3312 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:12,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [641 Valid, 3111 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1409 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 13:28:12,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60091 states. [2022-01-18 13:28:13,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60091 to 24236. [2022-01-18 13:28:13,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24236 states, 24235 states have (on average 4.008582628429957) internal successors, (97148), 24235 states have internal predecessors, (97148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:13,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24236 states to 24236 states and 97148 transitions. [2022-01-18 13:28:13,770 INFO L78 Accepts]: Start accepts. Automaton has 24236 states and 97148 transitions. Word has length 117 [2022-01-18 13:28:13,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:13,770 INFO L470 AbstractCegarLoop]: Abstraction has 24236 states and 97148 transitions. [2022-01-18 13:28:13,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:13,770 INFO L276 IsEmpty]: Start isEmpty. Operand 24236 states and 97148 transitions. [2022-01-18 13:28:13,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:28:13,816 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:13,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:28:13,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-01-18 13:28:13,816 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:28:13,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:13,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1932432215, now seen corresponding path program 132 times [2022-01-18 13:28:13,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:13,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166852868] [2022-01-18 13:28:13,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:13,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:14,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:14,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:14,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166852868] [2022-01-18 13:28:14,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166852868] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:14,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:14,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:28:14,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535794815] [2022-01-18 13:28:14,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:14,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:28:14,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:14,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:28:14,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:14,355 INFO L87 Difference]: Start difference. First operand 24236 states and 97148 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:16,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:16,263 INFO L93 Difference]: Finished difference Result 61294 states and 240608 transitions. [2022-01-18 13:28:16,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:28:16,263 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:28:16,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:16,486 INFO L225 Difference]: With dead ends: 61294 [2022-01-18 13:28:16,486 INFO L226 Difference]: Without dead ends: 60712 [2022-01-18 13:28:16,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=262, Invalid=550, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:28:16,487 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 730 mSDsluCounter, 3107 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 2962 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:16,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [730 Valid, 2962 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:28:16,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60712 states. [2022-01-18 13:28:17,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60712 to 24344. [2022-01-18 13:28:17,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24344 states, 24343 states have (on average 4.007435402374399) internal successors, (97553), 24343 states have internal predecessors, (97553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:17,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24344 states to 24344 states and 97553 transitions. [2022-01-18 13:28:17,651 INFO L78 Accepts]: Start accepts. Automaton has 24344 states and 97553 transitions. Word has length 117 [2022-01-18 13:28:17,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:17,651 INFO L470 AbstractCegarLoop]: Abstraction has 24344 states and 97553 transitions. [2022-01-18 13:28:17,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:17,652 INFO L276 IsEmpty]: Start isEmpty. Operand 24344 states and 97553 transitions. [2022-01-18 13:28:17,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:28:17,711 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:17,711 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:28:17,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-01-18 13:28:17,711 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:28:17,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:17,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1442563457, now seen corresponding path program 133 times [2022-01-18 13:28:17,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:17,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541154625] [2022-01-18 13:28:17,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:17,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:18,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:18,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:18,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541154625] [2022-01-18 13:28:18,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541154625] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:18,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:18,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:28:18,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115844496] [2022-01-18 13:28:18,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:18,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:28:18,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:18,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:28:18,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:18,358 INFO L87 Difference]: Start difference. First operand 24344 states and 97553 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:19,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:19,831 INFO L93 Difference]: Finished difference Result 61267 states and 240482 transitions. [2022-01-18 13:28:19,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:28:19,831 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:28:19,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:20,026 INFO L225 Difference]: With dead ends: 61267 [2022-01-18 13:28:20,026 INFO L226 Difference]: Without dead ends: 60676 [2022-01-18 13:28:20,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=242, Invalid=514, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:28:20,026 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 719 mSDsluCounter, 3025 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 2877 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:20,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [719 Valid, 2877 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:28:20,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60676 states. [2022-01-18 13:28:20,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60676 to 24308. [2022-01-18 13:28:20,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24308 states, 24307 states have (on average 4.007322993376394) internal successors, (97406), 24307 states have internal predecessors, (97406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:21,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24308 states to 24308 states and 97406 transitions. [2022-01-18 13:28:21,027 INFO L78 Accepts]: Start accepts. Automaton has 24308 states and 97406 transitions. Word has length 117 [2022-01-18 13:28:21,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:21,027 INFO L470 AbstractCegarLoop]: Abstraction has 24308 states and 97406 transitions. [2022-01-18 13:28:21,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:21,027 INFO L276 IsEmpty]: Start isEmpty. Operand 24308 states and 97406 transitions. [2022-01-18 13:28:21,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:28:21,073 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:21,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:28:21,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-01-18 13:28:21,073 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:28:21,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:21,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1940449713, now seen corresponding path program 134 times [2022-01-18 13:28:21,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:21,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281691743] [2022-01-18 13:28:21,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:21,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:21,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:21,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:21,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281691743] [2022-01-18 13:28:21,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281691743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:21,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:21,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:28:21,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82064136] [2022-01-18 13:28:21,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:21,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:28:21,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:21,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:28:21,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:21,642 INFO L87 Difference]: Start difference. First operand 24308 states and 97406 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:23,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:23,308 INFO L93 Difference]: Finished difference Result 60673 states and 238493 transitions. [2022-01-18 13:28:23,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:28:23,309 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:28:23,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:23,502 INFO L225 Difference]: With dead ends: 60673 [2022-01-18 13:28:23,502 INFO L226 Difference]: Without dead ends: 59398 [2022-01-18 13:28:23,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=244, Invalid=512, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:28:23,502 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 632 mSDsluCounter, 3084 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 2939 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:23,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [632 Valid, 2939 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:28:23,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59398 states. [2022-01-18 13:28:24,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59398 to 23804. [2022-01-18 13:28:24,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23804 states, 23803 states have (on average 4.014283913792379) internal successors, (95552), 23803 states have internal predecessors, (95552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:24,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23804 states to 23804 states and 95552 transitions. [2022-01-18 13:28:24,458 INFO L78 Accepts]: Start accepts. Automaton has 23804 states and 95552 transitions. Word has length 117 [2022-01-18 13:28:24,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:24,458 INFO L470 AbstractCegarLoop]: Abstraction has 23804 states and 95552 transitions. [2022-01-18 13:28:24,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:24,458 INFO L276 IsEmpty]: Start isEmpty. Operand 23804 states and 95552 transitions. [2022-01-18 13:28:24,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:28:24,503 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:24,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:28:24,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-01-18 13:28:24,503 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:28:24,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:24,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1462146691, now seen corresponding path program 135 times [2022-01-18 13:28:24,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:24,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361023925] [2022-01-18 13:28:24,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:24,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:25,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:25,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361023925] [2022-01-18 13:28:25,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361023925] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:25,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:25,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:28:25,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806881463] [2022-01-18 13:28:25,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:25,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:28:25,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:25,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:28:25,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:25,077 INFO L87 Difference]: Start difference. First operand 23804 states and 95552 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:26,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:26,839 INFO L93 Difference]: Finished difference Result 60382 states and 237369 transitions. [2022-01-18 13:28:26,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:28:26,839 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:28:26,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:27,047 INFO L225 Difference]: With dead ends: 60382 [2022-01-18 13:28:27,048 INFO L226 Difference]: Without dead ends: 59788 [2022-01-18 13:28:27,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:28:27,048 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 823 mSDsluCounter, 3043 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:27,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [823 Valid, 2895 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:28:27,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59788 states. [2022-01-18 13:28:27,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59788 to 24116. [2022-01-18 13:28:27,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24116 states, 24115 states have (on average 4.0140161725067385) internal successors, (96798), 24115 states have internal predecessors, (96798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:27,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24116 states to 24116 states and 96798 transitions. [2022-01-18 13:28:27,809 INFO L78 Accepts]: Start accepts. Automaton has 24116 states and 96798 transitions. Word has length 117 [2022-01-18 13:28:27,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:27,809 INFO L470 AbstractCegarLoop]: Abstraction has 24116 states and 96798 transitions. [2022-01-18 13:28:27,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:27,810 INFO L276 IsEmpty]: Start isEmpty. Operand 24116 states and 96798 transitions. [2022-01-18 13:28:28,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:28:28,085 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:28,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:28:28,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-01-18 13:28:28,086 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:28:28,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:28,086 INFO L85 PathProgramCache]: Analyzing trace with hash -129279075, now seen corresponding path program 136 times [2022-01-18 13:28:28,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:28,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197466556] [2022-01-18 13:28:28,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:28,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:28,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:28,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:28,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197466556] [2022-01-18 13:28:28,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197466556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:28,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:28,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:28:28,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978428389] [2022-01-18 13:28:28,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:28,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:28:28,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:28,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:28:28,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:28,685 INFO L87 Difference]: Start difference. First operand 24116 states and 96798 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:30,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:30,241 INFO L93 Difference]: Finished difference Result 60370 states and 237294 transitions. [2022-01-18 13:28:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:28:30,241 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:28:30,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:30,436 INFO L225 Difference]: With dead ends: 60370 [2022-01-18 13:28:30,436 INFO L226 Difference]: Without dead ends: 59743 [2022-01-18 13:28:30,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:28:30,437 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 742 mSDsluCounter, 3128 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:30,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [742 Valid, 2969 Invalid, 1321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:28:30,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59743 states. [2022-01-18 13:28:31,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59743 to 24071. [2022-01-18 13:28:31,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24071 states, 24070 states have (on average 4.01404237640216) internal successors, (96618), 24070 states have internal predecessors, (96618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:31,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24071 states to 24071 states and 96618 transitions. [2022-01-18 13:28:31,402 INFO L78 Accepts]: Start accepts. Automaton has 24071 states and 96618 transitions. Word has length 117 [2022-01-18 13:28:31,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:31,403 INFO L470 AbstractCegarLoop]: Abstraction has 24071 states and 96618 transitions. [2022-01-18 13:28:31,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:31,403 INFO L276 IsEmpty]: Start isEmpty. Operand 24071 states and 96618 transitions. [2022-01-18 13:28:31,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:28:31,446 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:31,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:28:31,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-01-18 13:28:31,446 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:28:31,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:31,447 INFO L85 PathProgramCache]: Analyzing trace with hash 285504155, now seen corresponding path program 137 times [2022-01-18 13:28:31,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:31,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146898794] [2022-01-18 13:28:31,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:31,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:32,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:32,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:32,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146898794] [2022-01-18 13:28:32,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146898794] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:32,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:32,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:28:32,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442735333] [2022-01-18 13:28:32,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:32,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:28:32,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:32,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:28:32,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:32,005 INFO L87 Difference]: Start difference. First operand 24071 states and 96618 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:33,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:33,754 INFO L93 Difference]: Finished difference Result 60730 states and 238599 transitions. [2022-01-18 13:28:33,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:28:33,755 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:28:33,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:33,954 INFO L225 Difference]: With dead ends: 60730 [2022-01-18 13:28:33,954 INFO L226 Difference]: Without dead ends: 59608 [2022-01-18 13:28:33,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:28:33,955 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 854 mSDsluCounter, 3005 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 2851 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:33,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [854 Valid, 2851 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:28:34,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59608 states. [2022-01-18 13:28:34,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59608 to 23936. [2022-01-18 13:28:34,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23936 states, 23935 states have (on average 4.01449759766033) internal successors, (96087), 23935 states have internal predecessors, (96087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:34,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23936 states to 23936 states and 96087 transitions. [2022-01-18 13:28:34,942 INFO L78 Accepts]: Start accepts. Automaton has 23936 states and 96087 transitions. Word has length 117 [2022-01-18 13:28:34,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:34,942 INFO L470 AbstractCegarLoop]: Abstraction has 23936 states and 96087 transitions. [2022-01-18 13:28:34,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:34,942 INFO L276 IsEmpty]: Start isEmpty. Operand 23936 states and 96087 transitions. [2022-01-18 13:28:34,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:28:34,989 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:34,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:28:34,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-01-18 13:28:34,989 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:28:34,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:34,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1714429699, now seen corresponding path program 138 times [2022-01-18 13:28:34,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:34,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804372438] [2022-01-18 13:28:34,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:34,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:35,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:35,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:35,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804372438] [2022-01-18 13:28:35,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804372438] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:35,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:35,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:28:35,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56226001] [2022-01-18 13:28:35,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:35,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:28:35,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:35,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:28:35,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:35,546 INFO L87 Difference]: Start difference. First operand 23936 states and 96087 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:37,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:37,364 INFO L93 Difference]: Finished difference Result 61621 states and 241439 transitions. [2022-01-18 13:28:37,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:28:37,364 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:28:37,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:37,582 INFO L225 Difference]: With dead ends: 61621 [2022-01-18 13:28:37,582 INFO L226 Difference]: Without dead ends: 61027 [2022-01-18 13:28:37,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:28:37,582 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 1029 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 2862 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:37,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1029 Valid, 2862 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:28:37,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61027 states. [2022-01-18 13:28:38,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61027 to 23993. [2022-01-18 13:28:38,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23993 states, 23992 states have (on average 4.012795931977326) internal successors, (96275), 23992 states have internal predecessors, (96275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:38,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23993 states to 23993 states and 96275 transitions. [2022-01-18 13:28:38,413 INFO L78 Accepts]: Start accepts. Automaton has 23993 states and 96275 transitions. Word has length 117 [2022-01-18 13:28:38,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:38,413 INFO L470 AbstractCegarLoop]: Abstraction has 23993 states and 96275 transitions. [2022-01-18 13:28:38,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:38,413 INFO L276 IsEmpty]: Start isEmpty. Operand 23993 states and 96275 transitions. [2022-01-18 13:28:38,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:28:38,622 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:38,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:28:38,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-01-18 13:28:38,622 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:28:38,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:38,623 INFO L85 PathProgramCache]: Analyzing trace with hash -381562083, now seen corresponding path program 139 times [2022-01-18 13:28:38,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:38,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850938655] [2022-01-18 13:28:38,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:38,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:39,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:39,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:39,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850938655] [2022-01-18 13:28:39,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850938655] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:39,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:39,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:28:39,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540007220] [2022-01-18 13:28:39,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:39,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:28:39,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:39,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:28:39,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:39,238 INFO L87 Difference]: Start difference. First operand 23993 states and 96275 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:40,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:40,785 INFO L93 Difference]: Finished difference Result 61609 states and 241364 transitions. [2022-01-18 13:28:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:28:40,785 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:28:40,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:40,980 INFO L225 Difference]: With dead ends: 61609 [2022-01-18 13:28:40,980 INFO L226 Difference]: Without dead ends: 60982 [2022-01-18 13:28:40,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:28:40,981 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 879 mSDsluCounter, 3238 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 3060 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:40,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [879 Valid, 3060 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:28:41,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60982 states. [2022-01-18 13:28:41,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60982 to 23948. [2022-01-18 13:28:41,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23948 states, 23947 states have (on average 4.014198020628889) internal successors, (96128), 23947 states have internal predecessors, (96128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:41,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23948 states to 23948 states and 96128 transitions. [2022-01-18 13:28:41,894 INFO L78 Accepts]: Start accepts. Automaton has 23948 states and 96128 transitions. Word has length 117 [2022-01-18 13:28:41,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:41,894 INFO L470 AbstractCegarLoop]: Abstraction has 23948 states and 96128 transitions. [2022-01-18 13:28:41,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:41,894 INFO L276 IsEmpty]: Start isEmpty. Operand 23948 states and 96128 transitions. [2022-01-18 13:28:41,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:28:41,939 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:41,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:28:41,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-01-18 13:28:41,939 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:28:41,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:41,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1961835367, now seen corresponding path program 140 times [2022-01-18 13:28:41,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:41,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224144208] [2022-01-18 13:28:41,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:41,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:42,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:42,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:42,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224144208] [2022-01-18 13:28:42,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224144208] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:42,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:42,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:28:42,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499676367] [2022-01-18 13:28:42,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:42,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:28:42,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:42,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:28:42,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:42,470 INFO L87 Difference]: Start difference. First operand 23948 states and 96128 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:44,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:44,110 INFO L93 Difference]: Finished difference Result 60844 states and 238790 transitions. [2022-01-18 13:28:44,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:28:44,110 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:28:44,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:44,308 INFO L225 Difference]: With dead ends: 60844 [2022-01-18 13:28:44,308 INFO L226 Difference]: Without dead ends: 60250 [2022-01-18 13:28:44,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:28:44,309 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 917 mSDsluCounter, 2970 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 2827 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:44,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [917 Valid, 2827 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:28:44,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60250 states. [2022-01-18 13:28:45,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60250 to 23984. [2022-01-18 13:28:45,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23984 states, 23983 states have (on average 4.012800733853146) internal successors, (96239), 23983 states have internal predecessors, (96239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:45,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23984 states to 23984 states and 96239 transitions. [2022-01-18 13:28:45,254 INFO L78 Accepts]: Start accepts. Automaton has 23984 states and 96239 transitions. Word has length 117 [2022-01-18 13:28:45,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:45,254 INFO L470 AbstractCegarLoop]: Abstraction has 23984 states and 96239 transitions. [2022-01-18 13:28:45,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:45,254 INFO L276 IsEmpty]: Start isEmpty. Operand 23984 states and 96239 transitions. [2022-01-18 13:28:45,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:28:45,300 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:45,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:28:45,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-01-18 13:28:45,300 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:28:45,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:45,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1273120835, now seen corresponding path program 141 times [2022-01-18 13:28:45,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:45,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588462679] [2022-01-18 13:28:45,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:45,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:45,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:45,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:45,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588462679] [2022-01-18 13:28:45,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588462679] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:45,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:45,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:28:45,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861367050] [2022-01-18 13:28:45,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:45,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:28:45,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:45,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:28:45,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:45,889 INFO L87 Difference]: Start difference. First operand 23984 states and 96239 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:47,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:47,702 INFO L93 Difference]: Finished difference Result 60355 states and 237197 transitions. [2022-01-18 13:28:47,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:28:47,702 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:28:47,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:47,917 INFO L225 Difference]: With dead ends: 60355 [2022-01-18 13:28:47,917 INFO L226 Difference]: Without dead ends: 59764 [2022-01-18 13:28:47,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:28:47,917 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 780 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 3018 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:47,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [780 Valid, 3018 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:28:48,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59764 states. [2022-01-18 13:28:48,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59764 to 23948. [2022-01-18 13:28:48,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23948 states, 23947 states have (on average 4.013696914018458) internal successors, (96116), 23947 states have internal predecessors, (96116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:48,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23948 states to 23948 states and 96116 transitions. [2022-01-18 13:28:48,678 INFO L78 Accepts]: Start accepts. Automaton has 23948 states and 96116 transitions. Word has length 117 [2022-01-18 13:28:48,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:48,678 INFO L470 AbstractCegarLoop]: Abstraction has 23948 states and 96116 transitions. [2022-01-18 13:28:48,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:48,678 INFO L276 IsEmpty]: Start isEmpty. Operand 23948 states and 96116 transitions. [2022-01-18 13:28:48,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:28:48,725 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:48,725 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:28:48,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-01-18 13:28:48,725 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:28:48,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:48,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1880956537, now seen corresponding path program 142 times [2022-01-18 13:28:48,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:48,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613754604] [2022-01-18 13:28:48,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:48,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:49,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:49,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:49,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613754604] [2022-01-18 13:28:49,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613754604] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:49,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:49,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:28:49,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847536106] [2022-01-18 13:28:49,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:49,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:28:49,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:49,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:28:49,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:49,500 INFO L87 Difference]: Start difference. First operand 23948 states and 96116 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:51,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:51,040 INFO L93 Difference]: Finished difference Result 60940 states and 239153 transitions. [2022-01-18 13:28:51,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:28:51,040 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:28:51,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:51,234 INFO L225 Difference]: With dead ends: 60940 [2022-01-18 13:28:51,234 INFO L226 Difference]: Without dead ends: 60358 [2022-01-18 13:28:51,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:28:51,235 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 827 mSDsluCounter, 3134 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 2966 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:51,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [827 Valid, 2966 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:28:51,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60358 states. [2022-01-18 13:28:52,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60358 to 23984. [2022-01-18 13:28:52,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23984 states, 23983 states have (on average 4.012300379435433) internal successors, (96227), 23983 states have internal predecessors, (96227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:52,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23984 states to 23984 states and 96227 transitions. [2022-01-18 13:28:52,182 INFO L78 Accepts]: Start accepts. Automaton has 23984 states and 96227 transitions. Word has length 117 [2022-01-18 13:28:52,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:52,182 INFO L470 AbstractCegarLoop]: Abstraction has 23984 states and 96227 transitions. [2022-01-18 13:28:52,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:52,182 INFO L276 IsEmpty]: Start isEmpty. Operand 23984 states and 96227 transitions. [2022-01-18 13:28:52,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:28:52,226 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:52,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:28:52,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-01-18 13:28:52,226 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:28:52,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:52,227 INFO L85 PathProgramCache]: Analyzing trace with hash 731484637, now seen corresponding path program 143 times [2022-01-18 13:28:52,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:52,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55977869] [2022-01-18 13:28:52,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:52,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:52,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:52,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:52,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55977869] [2022-01-18 13:28:52,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55977869] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:52,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:52,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:28:52,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082066055] [2022-01-18 13:28:52,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:52,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:28:52,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:52,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:28:52,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:52,799 INFO L87 Difference]: Start difference. First operand 23984 states and 96227 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:54,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:54,427 INFO L93 Difference]: Finished difference Result 60355 states and 237185 transitions. [2022-01-18 13:28:54,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:28:54,427 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:28:54,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:54,620 INFO L225 Difference]: With dead ends: 60355 [2022-01-18 13:28:54,620 INFO L226 Difference]: Without dead ends: 59752 [2022-01-18 13:28:54,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:28:54,620 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 834 mSDsluCounter, 2860 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:54,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [834 Valid, 2728 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:28:54,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59752 states. [2022-01-18 13:28:55,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59752 to 23936. [2022-01-18 13:28:55,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23936 states, 23935 states have (on average 4.013996239816168) internal successors, (96075), 23935 states have internal predecessors, (96075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:55,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23936 states to 23936 states and 96075 transitions. [2022-01-18 13:28:55,577 INFO L78 Accepts]: Start accepts. Automaton has 23936 states and 96075 transitions. Word has length 117 [2022-01-18 13:28:55,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:55,577 INFO L470 AbstractCegarLoop]: Abstraction has 23936 states and 96075 transitions. [2022-01-18 13:28:55,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:55,577 INFO L276 IsEmpty]: Start isEmpty. Operand 23936 states and 96075 transitions. [2022-01-18 13:28:55,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:28:55,621 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:55,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:28:55,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-01-18 13:28:55,621 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:28:55,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:55,622 INFO L85 PathProgramCache]: Analyzing trace with hash 284885723, now seen corresponding path program 144 times [2022-01-18 13:28:55,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:55,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441404212] [2022-01-18 13:28:55,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:55,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:56,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:56,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:56,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441404212] [2022-01-18 13:28:56,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441404212] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:56,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:56,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:28:56,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649171666] [2022-01-18 13:28:56,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:56,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:28:56,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:56,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:28:56,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:56,219 INFO L87 Difference]: Start difference. First operand 23936 states and 96075 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:58,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:58,064 INFO L93 Difference]: Finished difference Result 61432 states and 240981 transitions. [2022-01-18 13:28:58,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:28:58,065 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:28:58,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:58,288 INFO L225 Difference]: With dead ends: 61432 [2022-01-18 13:28:58,288 INFO L226 Difference]: Without dead ends: 60445 [2022-01-18 13:28:58,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:28:58,288 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 863 mSDsluCounter, 2994 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:58,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [863 Valid, 2845 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:28:58,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60445 states. [2022-01-18 13:28:58,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60445 to 24044. [2022-01-18 13:28:59,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24044 states, 24043 states have (on average 4.009815746787007) internal successors, (96408), 24043 states have internal predecessors, (96408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:59,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24044 states to 24044 states and 96408 transitions. [2022-01-18 13:28:59,089 INFO L78 Accepts]: Start accepts. Automaton has 24044 states and 96408 transitions. Word has length 117 [2022-01-18 13:28:59,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:59,090 INFO L470 AbstractCegarLoop]: Abstraction has 24044 states and 96408 transitions. [2022-01-18 13:28:59,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:59,090 INFO L276 IsEmpty]: Start isEmpty. Operand 24044 states and 96408 transitions. [2022-01-18 13:28:59,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:28:59,136 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:59,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:28:59,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-01-18 13:28:59,136 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:28:59,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:59,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1084079611, now seen corresponding path program 145 times [2022-01-18 13:28:59,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:59,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823318896] [2022-01-18 13:28:59,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:59,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:59,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:59,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:59,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823318896] [2022-01-18 13:28:59,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823318896] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:59,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:59,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:28:59,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622085870] [2022-01-18 13:28:59,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:59,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:28:59,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:59,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:28:59,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:59,962 INFO L87 Difference]: Start difference. First operand 24044 states and 96408 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:01,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:01,446 INFO L93 Difference]: Finished difference Result 61036 states and 239445 transitions. [2022-01-18 13:29:01,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:29:01,446 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:29:01,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:01,650 INFO L225 Difference]: With dead ends: 61036 [2022-01-18 13:29:01,650 INFO L226 Difference]: Without dead ends: 60454 [2022-01-18 13:29:01,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:29:01,652 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 1036 mSDsluCounter, 2841 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 2715 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:01,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1036 Valid, 2715 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:29:01,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60454 states. [2022-01-18 13:29:02,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60454 to 24080. [2022-01-18 13:29:02,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24080 states, 24079 states have (on average 4.008430582665393) internal successors, (96519), 24079 states have internal predecessors, (96519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:02,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24080 states to 24080 states and 96519 transitions. [2022-01-18 13:29:02,654 INFO L78 Accepts]: Start accepts. Automaton has 24080 states and 96519 transitions. Word has length 117 [2022-01-18 13:29:02,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:02,654 INFO L470 AbstractCegarLoop]: Abstraction has 24080 states and 96519 transitions. [2022-01-18 13:29:02,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:02,655 INFO L276 IsEmpty]: Start isEmpty. Operand 24080 states and 96519 transitions. [2022-01-18 13:29:02,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:29:02,700 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:02,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:29:02,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-01-18 13:29:02,700 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:29:02,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:02,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1528361563, now seen corresponding path program 146 times [2022-01-18 13:29:02,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:02,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780001478] [2022-01-18 13:29:02,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:02,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:03,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:03,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:03,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780001478] [2022-01-18 13:29:03,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780001478] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:29:03,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:29:03,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:29:03,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593740681] [2022-01-18 13:29:03,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:29:03,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:29:03,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:03,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:29:03,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:29:03,268 INFO L87 Difference]: Start difference. First operand 24080 states and 96519 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:04,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:04,920 INFO L93 Difference]: Finished difference Result 60451 states and 237477 transitions. [2022-01-18 13:29:04,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:29:04,920 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:29:04,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:05,115 INFO L225 Difference]: With dead ends: 60451 [2022-01-18 13:29:05,115 INFO L226 Difference]: Without dead ends: 59716 [2022-01-18 13:29:05,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:29:05,115 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 723 mSDsluCounter, 3040 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:05,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [723 Valid, 2885 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:29:05,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59716 states. [2022-01-18 13:29:06,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59716 to 23900. [2022-01-18 13:29:06,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23900 states, 23899 states have (on average 4.013891794635759) internal successors, (95928), 23899 states have internal predecessors, (95928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:06,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23900 states to 23900 states and 95928 transitions. [2022-01-18 13:29:06,109 INFO L78 Accepts]: Start accepts. Automaton has 23900 states and 95928 transitions. Word has length 117 [2022-01-18 13:29:06,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:06,109 INFO L470 AbstractCegarLoop]: Abstraction has 23900 states and 95928 transitions. [2022-01-18 13:29:06,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:06,109 INFO L276 IsEmpty]: Start isEmpty. Operand 23900 states and 95928 transitions. [2022-01-18 13:29:06,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:29:06,154 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:06,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:29:06,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-01-18 13:29:06,154 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:29:06,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:06,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1095777247, now seen corresponding path program 147 times [2022-01-18 13:29:06,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:06,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258895482] [2022-01-18 13:29:06,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:06,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:06,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:06,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:06,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258895482] [2022-01-18 13:29:06,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258895482] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:29:06,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:29:06,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:29:06,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585121309] [2022-01-18 13:29:06,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:29:06,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:29:06,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:06,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:29:06,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:29:06,734 INFO L87 Difference]: Start difference. First operand 23900 states and 95928 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:08,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:08,391 INFO L93 Difference]: Finished difference Result 61768 states and 242247 transitions. [2022-01-18 13:29:08,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:29:08,391 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:29:08,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:08,851 INFO L225 Difference]: With dead ends: 61768 [2022-01-18 13:29:08,851 INFO L226 Difference]: Without dead ends: 61174 [2022-01-18 13:29:08,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=255, Invalid=557, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:29:08,851 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 983 mSDsluCounter, 3029 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 2912 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:08,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [983 Valid, 2912 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:29:08,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61174 states. [2022-01-18 13:29:09,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61174 to 23981. [2022-01-18 13:29:09,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23981 states, 23980 states have (on average 4.012593828190158) internal successors, (96222), 23980 states have internal predecessors, (96222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:09,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23981 states to 23981 states and 96222 transitions. [2022-01-18 13:29:09,588 INFO L78 Accepts]: Start accepts. Automaton has 23981 states and 96222 transitions. Word has length 117 [2022-01-18 13:29:09,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:09,588 INFO L470 AbstractCegarLoop]: Abstraction has 23981 states and 96222 transitions. [2022-01-18 13:29:09,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:09,588 INFO L276 IsEmpty]: Start isEmpty. Operand 23981 states and 96222 transitions. [2022-01-18 13:29:09,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:29:09,632 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:09,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:29:09,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-01-18 13:29:09,632 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:29:09,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:09,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1866322433, now seen corresponding path program 148 times [2022-01-18 13:29:09,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:09,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309066090] [2022-01-18 13:29:09,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:09,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:10,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:10,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:10,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309066090] [2022-01-18 13:29:10,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309066090] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:29:10,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:29:10,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:29:10,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031528069] [2022-01-18 13:29:10,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:29:10,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:29:10,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:10,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:29:10,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:29:10,362 INFO L87 Difference]: Start difference. First operand 23981 states and 96222 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:12,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:12,119 INFO L93 Difference]: Finished difference Result 62161 states and 243657 transitions. [2022-01-18 13:29:12,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 13:29:12,119 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:29:12,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:12,316 INFO L225 Difference]: With dead ends: 62161 [2022-01-18 13:29:12,316 INFO L226 Difference]: Without dead ends: 61534 [2022-01-18 13:29:12,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=275, Invalid=595, Unknown=0, NotChecked=0, Total=870 [2022-01-18 13:29:12,316 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 847 mSDsluCounter, 3236 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 3097 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:12,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [847 Valid, 3097 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:29:12,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61534 states. [2022-01-18 13:29:13,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61534 to 23936. [2022-01-18 13:29:13,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23936 states, 23935 states have (on average 4.013996239816168) internal successors, (96075), 23935 states have internal predecessors, (96075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:13,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23936 states to 23936 states and 96075 transitions. [2022-01-18 13:29:13,255 INFO L78 Accepts]: Start accepts. Automaton has 23936 states and 96075 transitions. Word has length 117 [2022-01-18 13:29:13,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:13,255 INFO L470 AbstractCegarLoop]: Abstraction has 23936 states and 96075 transitions. [2022-01-18 13:29:13,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:13,255 INFO L276 IsEmpty]: Start isEmpty. Operand 23936 states and 96075 transitions. [2022-01-18 13:29:13,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:29:13,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:13,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:29:13,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-01-18 13:29:13,299 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:29:13,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:13,300 INFO L85 PathProgramCache]: Analyzing trace with hash 477075017, now seen corresponding path program 149 times [2022-01-18 13:29:13,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:13,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137748931] [2022-01-18 13:29:13,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:13,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:13,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:13,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:13,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137748931] [2022-01-18 13:29:13,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137748931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:29:13,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:29:13,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:29:13,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353364572] [2022-01-18 13:29:13,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:29:13,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:29:13,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:13,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:29:13,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:29:13,834 INFO L87 Difference]: Start difference. First operand 23936 states and 96075 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:15,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:15,597 INFO L93 Difference]: Finished difference Result 62317 states and 244044 transitions. [2022-01-18 13:29:15,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:29:15,597 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:29:15,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:15,806 INFO L225 Difference]: With dead ends: 62317 [2022-01-18 13:29:15,806 INFO L226 Difference]: Without dead ends: 61723 [2022-01-18 13:29:15,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=236, Invalid=520, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:29:15,806 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 1138 mSDsluCounter, 2844 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 2734 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:15,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1138 Valid, 2734 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:29:15,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61723 states. [2022-01-18 13:29:16,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61723 to 23972. [2022-01-18 13:29:16,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23972 states, 23971 states have (on average 4.012598556589212) internal successors, (96186), 23971 states have internal predecessors, (96186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:16,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23972 states to 23972 states and 96186 transitions. [2022-01-18 13:29:16,841 INFO L78 Accepts]: Start accepts. Automaton has 23972 states and 96186 transitions. Word has length 117 [2022-01-18 13:29:16,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:16,841 INFO L470 AbstractCegarLoop]: Abstraction has 23972 states and 96186 transitions. [2022-01-18 13:29:16,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:16,841 INFO L276 IsEmpty]: Start isEmpty. Operand 23972 states and 96186 transitions. [2022-01-18 13:29:16,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:29:16,888 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:16,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:29:16,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-01-18 13:29:16,888 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:29:16,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:16,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1537086111, now seen corresponding path program 150 times [2022-01-18 13:29:16,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:16,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243346769] [2022-01-18 13:29:16,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:16,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:17,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:17,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243346769] [2022-01-18 13:29:17,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243346769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:29:17,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:29:17,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:29:17,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437209756] [2022-01-18 13:29:17,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:29:17,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:29:17,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:17,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:29:17,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:29:17,498 INFO L87 Difference]: Start difference. First operand 23972 states and 96186 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:19,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:19,341 INFO L93 Difference]: Finished difference Result 61828 states and 242451 transitions. [2022-01-18 13:29:19,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:29:19,341 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:29:19,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:19,560 INFO L225 Difference]: With dead ends: 61828 [2022-01-18 13:29:19,560 INFO L226 Difference]: Without dead ends: 61237 [2022-01-18 13:29:19,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=236, Invalid=520, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:29:19,560 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 910 mSDsluCounter, 3050 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 2899 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:19,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [910 Valid, 2899 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 13:29:19,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61237 states. [2022-01-18 13:29:20,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61237 to 23936. [2022-01-18 13:29:20,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23936 states, 23935 states have (on average 4.013494881972007) internal successors, (96063), 23935 states have internal predecessors, (96063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:20,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23936 states to 23936 states and 96063 transitions. [2022-01-18 13:29:20,318 INFO L78 Accepts]: Start accepts. Automaton has 23936 states and 96063 transitions. Word has length 117 [2022-01-18 13:29:20,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:20,318 INFO L470 AbstractCegarLoop]: Abstraction has 23936 states and 96063 transitions. [2022-01-18 13:29:20,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:20,318 INFO L276 IsEmpty]: Start isEmpty. Operand 23936 states and 96063 transitions. [2022-01-18 13:29:20,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:29:20,364 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:20,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:29:20,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-01-18 13:29:20,364 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:29:20,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:20,364 INFO L85 PathProgramCache]: Analyzing trace with hash 929250409, now seen corresponding path program 151 times [2022-01-18 13:29:20,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:20,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453981481] [2022-01-18 13:29:20,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:20,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:21,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:21,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:21,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453981481] [2022-01-18 13:29:21,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453981481] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:29:21,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:29:21,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:29:21,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256193063] [2022-01-18 13:29:21,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:29:21,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:29:21,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:21,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:29:21,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:29:21,269 INFO L87 Difference]: Start difference. First operand 23936 states and 96063 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:22,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:22,931 INFO L93 Difference]: Finished difference Result 62305 states and 244002 transitions. [2022-01-18 13:29:22,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:29:22,931 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:29:22,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:23,138 INFO L225 Difference]: With dead ends: 62305 [2022-01-18 13:29:23,138 INFO L226 Difference]: Without dead ends: 61723 [2022-01-18 13:29:23,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=236, Invalid=520, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:29:23,139 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 936 mSDsluCounter, 3080 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 2930 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:23,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [936 Valid, 2930 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:29:23,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61723 states. [2022-01-18 13:29:24,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61723 to 23972. [2022-01-18 13:29:24,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23972 states, 23971 states have (on average 4.0120979516916275) internal successors, (96174), 23971 states have internal predecessors, (96174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:24,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23972 states to 23972 states and 96174 transitions. [2022-01-18 13:29:24,128 INFO L78 Accepts]: Start accepts. Automaton has 23972 states and 96174 transitions. Word has length 117 [2022-01-18 13:29:24,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:24,128 INFO L470 AbstractCegarLoop]: Abstraction has 23972 states and 96174 transitions. [2022-01-18 13:29:24,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:24,128 INFO L276 IsEmpty]: Start isEmpty. Operand 23972 states and 96174 transitions. [2022-01-18 13:29:24,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:29:24,173 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:24,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:29:24,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-01-18 13:29:24,174 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:29:24,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:24,174 INFO L85 PathProgramCache]: Analyzing trace with hash -753275713, now seen corresponding path program 152 times [2022-01-18 13:29:24,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:24,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369714257] [2022-01-18 13:29:24,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:24,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:24,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:24,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:24,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369714257] [2022-01-18 13:29:24,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369714257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:29:24,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:29:24,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:29:24,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654035250] [2022-01-18 13:29:24,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:29:24,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:29:24,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:24,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:29:24,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:29:24,785 INFO L87 Difference]: Start difference. First operand 23972 states and 96174 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:26,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:26,530 INFO L93 Difference]: Finished difference Result 61828 states and 242439 transitions. [2022-01-18 13:29:26,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:29:26,530 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:29:26,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:26,734 INFO L225 Difference]: With dead ends: 61828 [2022-01-18 13:29:26,734 INFO L226 Difference]: Without dead ends: 61225 [2022-01-18 13:29:26,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=236, Invalid=520, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:29:26,735 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 850 mSDsluCounter, 3147 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 2982 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:26,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [850 Valid, 2982 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:29:26,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61225 states. [2022-01-18 13:29:27,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61225 to 23924. [2022-01-18 13:29:27,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23924 states, 23923 states have (on average 4.013794256573172) internal successors, (96022), 23923 states have internal predecessors, (96022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:27,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23924 states to 23924 states and 96022 transitions. [2022-01-18 13:29:27,739 INFO L78 Accepts]: Start accepts. Automaton has 23924 states and 96022 transitions. Word has length 117 [2022-01-18 13:29:27,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:27,739 INFO L470 AbstractCegarLoop]: Abstraction has 23924 states and 96022 transitions. [2022-01-18 13:29:27,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:27,739 INFO L276 IsEmpty]: Start isEmpty. Operand 23924 states and 96022 transitions. [2022-01-18 13:29:27,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:29:27,784 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:27,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:29:27,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-01-18 13:29:27,784 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:29:27,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:27,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1880145449, now seen corresponding path program 153 times [2022-01-18 13:29:27,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:27,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188292300] [2022-01-18 13:29:27,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:27,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:28,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:28,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:28,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188292300] [2022-01-18 13:29:28,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188292300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:29:28,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:29:28,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:29:28,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479337314] [2022-01-18 13:29:28,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:29:28,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:29:28,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:28,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:29:28,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:29:28,326 INFO L87 Difference]: Start difference. First operand 23924 states and 96022 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:30,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:30,230 INFO L93 Difference]: Finished difference Result 60943 states and 239398 transitions. [2022-01-18 13:29:30,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:29:30,231 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:29:30,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:30,454 INFO L225 Difference]: With dead ends: 60943 [2022-01-18 13:29:30,455 INFO L226 Difference]: Without dead ends: 60349 [2022-01-18 13:29:30,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=239, Invalid=517, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:29:30,455 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 752 mSDsluCounter, 3077 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 2925 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:30,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 2925 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:29:30,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60349 states. [2022-01-18 13:29:31,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60349 to 24032. [2022-01-18 13:29:31,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24032 states, 24031 states have (on average 4.012608713744746) internal successors, (96427), 24031 states have internal predecessors, (96427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:31,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24032 states to 24032 states and 96427 transitions. [2022-01-18 13:29:31,234 INFO L78 Accepts]: Start accepts. Automaton has 24032 states and 96427 transitions. Word has length 117 [2022-01-18 13:29:31,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:31,235 INFO L470 AbstractCegarLoop]: Abstraction has 24032 states and 96427 transitions. [2022-01-18 13:29:31,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:31,235 INFO L276 IsEmpty]: Start isEmpty. Operand 24032 states and 96427 transitions. [2022-01-18 13:29:31,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:29:31,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:31,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:29:31,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-01-18 13:29:31,280 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:29:31,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:31,280 INFO L85 PathProgramCache]: Analyzing trace with hash -820134355, now seen corresponding path program 154 times [2022-01-18 13:29:31,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:31,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682244602] [2022-01-18 13:29:31,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:31,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:32,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:32,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:32,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682244602] [2022-01-18 13:29:32,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682244602] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:29:32,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:29:32,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:29:32,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292353099] [2022-01-18 13:29:32,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:29:32,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:29:32,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:32,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:29:32,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:29:32,048 INFO L87 Difference]: Start difference. First operand 24032 states and 96427 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:33,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:33,659 INFO L93 Difference]: Finished difference Result 60904 states and 239242 transitions. [2022-01-18 13:29:33,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:29:33,659 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:29:33,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:33,862 INFO L225 Difference]: With dead ends: 60904 [2022-01-18 13:29:33,863 INFO L226 Difference]: Without dead ends: 60313 [2022-01-18 13:29:33,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:29:33,863 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 760 mSDsluCounter, 2923 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 2798 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:33,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [760 Valid, 2798 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:29:33,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60313 states. [2022-01-18 13:29:34,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60313 to 23996. [2022-01-18 13:29:34,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23996 states, 23995 states have (on average 4.012502604709314) internal successors, (96280), 23995 states have internal predecessors, (96280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:34,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23996 states to 23996 states and 96280 transitions. [2022-01-18 13:29:34,857 INFO L78 Accepts]: Start accepts. Automaton has 23996 states and 96280 transitions. Word has length 117 [2022-01-18 13:29:34,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:34,858 INFO L470 AbstractCegarLoop]: Abstraction has 23996 states and 96280 transitions. [2022-01-18 13:29:34,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:34,858 INFO L276 IsEmpty]: Start isEmpty. Operand 23996 states and 96280 transitions. [2022-01-18 13:29:34,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:29:34,903 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:34,903 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:29:34,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-01-18 13:29:34,903 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:29:34,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:34,904 INFO L85 PathProgramCache]: Analyzing trace with hash 969884415, now seen corresponding path program 155 times [2022-01-18 13:29:34,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:34,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257224080] [2022-01-18 13:29:34,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:34,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:35,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:35,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:35,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257224080] [2022-01-18 13:29:35,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257224080] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:29:35,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:29:35,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:29:35,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423930338] [2022-01-18 13:29:35,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:29:35,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:29:35,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:35,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:29:35,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:29:35,445 INFO L87 Difference]: Start difference. First operand 23996 states and 96280 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:37,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:37,259 INFO L93 Difference]: Finished difference Result 60526 states and 238063 transitions. [2022-01-18 13:29:37,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:29:37,260 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:29:37,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:37,460 INFO L225 Difference]: With dead ends: 60526 [2022-01-18 13:29:37,460 INFO L226 Difference]: Without dead ends: 59683 [2022-01-18 13:29:37,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=240, Invalid=516, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:29:37,461 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 669 mSDsluCounter, 3296 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 3099 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:37,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [669 Valid, 3099 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:29:37,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59683 states. [2022-01-18 13:29:38,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59683 to 23924. [2022-01-18 13:29:38,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23924 states, 23923 states have (on average 4.012791037913305) internal successors, (95998), 23923 states have internal predecessors, (95998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:38,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23924 states to 23924 states and 95998 transitions. [2022-01-18 13:29:38,472 INFO L78 Accepts]: Start accepts. Automaton has 23924 states and 95998 transitions. Word has length 117 [2022-01-18 13:29:38,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:38,472 INFO L470 AbstractCegarLoop]: Abstraction has 23924 states and 95998 transitions. [2022-01-18 13:29:38,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:38,472 INFO L276 IsEmpty]: Start isEmpty. Operand 23924 states and 95998 transitions. [2022-01-18 13:29:38,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:29:38,518 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:38,518 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:29:38,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-01-18 13:29:38,518 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:29:38,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:38,519 INFO L85 PathProgramCache]: Analyzing trace with hash 585257431, now seen corresponding path program 156 times [2022-01-18 13:29:38,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:38,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193916392] [2022-01-18 13:29:38,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:38,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:39,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:39,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:39,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193916392] [2022-01-18 13:29:39,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193916392] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:29:39,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:29:39,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:29:39,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777892332] [2022-01-18 13:29:39,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:29:39,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:29:39,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:39,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:29:39,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:29:39,067 INFO L87 Difference]: Start difference. First operand 23924 states and 95998 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:41,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:41,060 INFO L93 Difference]: Finished difference Result 62092 states and 243619 transitions. [2022-01-18 13:29:41,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 13:29:41,060 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:29:41,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:41,290 INFO L225 Difference]: With dead ends: 62092 [2022-01-18 13:29:41,290 INFO L226 Difference]: Without dead ends: 61510 [2022-01-18 13:29:41,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=279, Invalid=591, Unknown=0, NotChecked=0, Total=870 [2022-01-18 13:29:41,290 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 843 mSDsluCounter, 3077 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 2943 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:41,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [843 Valid, 2943 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:29:41,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61510 states. [2022-01-18 13:29:41,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61510 to 24032. [2022-01-18 13:29:42,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24032 states, 24031 states have (on average 4.0116100037451625) internal successors, (96403), 24031 states have internal predecessors, (96403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:42,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24032 states to 24032 states and 96403 transitions. [2022-01-18 13:29:42,105 INFO L78 Accepts]: Start accepts. Automaton has 24032 states and 96403 transitions. Word has length 117 [2022-01-18 13:29:42,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:42,105 INFO L470 AbstractCegarLoop]: Abstraction has 24032 states and 96403 transitions. [2022-01-18 13:29:42,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:42,105 INFO L276 IsEmpty]: Start isEmpty. Operand 24032 states and 96403 transitions. [2022-01-18 13:29:42,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:29:42,151 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:42,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:29:42,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-01-18 13:29:42,151 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:29:42,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:42,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1097268691, now seen corresponding path program 157 times [2022-01-18 13:29:42,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:42,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281694749] [2022-01-18 13:29:42,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:42,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:42,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:42,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:42,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281694749] [2022-01-18 13:29:42,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281694749] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:29:42,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:29:42,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:29:42,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822458655] [2022-01-18 13:29:42,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:29:42,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:29:42,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:42,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:29:42,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:29:42,951 INFO L87 Difference]: Start difference. First operand 24032 states and 96403 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:44,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:44,623 INFO L93 Difference]: Finished difference Result 61660 states and 242008 transitions. [2022-01-18 13:29:44,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:29:44,623 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:29:44,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:44,827 INFO L225 Difference]: With dead ends: 61660 [2022-01-18 13:29:44,827 INFO L226 Difference]: Without dead ends: 61069 [2022-01-18 13:29:44,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=260, Invalid=552, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:29:44,828 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 743 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 2949 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:44,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [743 Valid, 2949 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:29:44,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61069 states. [2022-01-18 13:29:45,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61069 to 23996. [2022-01-18 13:29:45,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23996 states, 23995 states have (on average 4.0115023963325696) internal successors, (96256), 23995 states have internal predecessors, (96256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:45,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23996 states to 23996 states and 96256 transitions. [2022-01-18 13:29:45,832 INFO L78 Accepts]: Start accepts. Automaton has 23996 states and 96256 transitions. Word has length 117 [2022-01-18 13:29:45,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:45,832 INFO L470 AbstractCegarLoop]: Abstraction has 23996 states and 96256 transitions. [2022-01-18 13:29:45,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:45,832 INFO L276 IsEmpty]: Start isEmpty. Operand 23996 states and 96256 transitions. [2022-01-18 13:29:45,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:29:45,877 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:45,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:29:45,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-01-18 13:29:45,877 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:29:45,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:45,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1311855393, now seen corresponding path program 158 times [2022-01-18 13:29:45,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:45,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021197797] [2022-01-18 13:29:45,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:45,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:46,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:46,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:46,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021197797] [2022-01-18 13:29:46,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021197797] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:29:46,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:29:46,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:29:46,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127111608] [2022-01-18 13:29:46,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:29:46,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:29:46,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:46,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:29:46,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:29:46,435 INFO L87 Difference]: Start difference. First operand 23996 states and 96256 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:48,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:48,302 INFO L93 Difference]: Finished difference Result 61066 states and 240019 transitions. [2022-01-18 13:29:48,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:29:48,303 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:29:48,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:48,505 INFO L225 Difference]: With dead ends: 61066 [2022-01-18 13:29:48,505 INFO L226 Difference]: Without dead ends: 60199 [2022-01-18 13:29:48,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=261, Invalid=551, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:29:48,506 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 667 mSDsluCounter, 3273 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:48,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [667 Valid, 3088 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:29:48,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60199 states. [2022-01-18 13:29:49,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60199 to 23900. [2022-01-18 13:29:49,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23900 states, 23899 states have (on average 4.012887568517511) internal successors, (95904), 23899 states have internal predecessors, (95904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:49,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23900 states to 23900 states and 95904 transitions. [2022-01-18 13:29:49,512 INFO L78 Accepts]: Start accepts. Automaton has 23900 states and 95904 transitions. Word has length 117 [2022-01-18 13:29:49,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:49,513 INFO L470 AbstractCegarLoop]: Abstraction has 23900 states and 95904 transitions. [2022-01-18 13:29:49,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:49,513 INFO L276 IsEmpty]: Start isEmpty. Operand 23900 states and 95904 transitions. [2022-01-18 13:29:49,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:29:49,558 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:49,558 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:29:49,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-01-18 13:29:49,558 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:29:49,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:49,559 INFO L85 PathProgramCache]: Analyzing trace with hash 2028473599, now seen corresponding path program 159 times [2022-01-18 13:29:49,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:49,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668649263] [2022-01-18 13:29:49,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:49,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:50,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:50,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:50,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668649263] [2022-01-18 13:29:50,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668649263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:29:50,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:29:50,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:29:50,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330348184] [2022-01-18 13:29:50,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:29:50,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:29:50,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:50,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:29:50,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:29:50,100 INFO L87 Difference]: Start difference. First operand 23900 states and 95904 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:51,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:51,993 INFO L93 Difference]: Finished difference Result 61123 states and 240111 transitions. [2022-01-18 13:29:51,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:29:51,993 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:29:51,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:52,225 INFO L225 Difference]: With dead ends: 61123 [2022-01-18 13:29:52,225 INFO L226 Difference]: Without dead ends: 60136 [2022-01-18 13:29:52,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:29:52,225 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 671 mSDsluCounter, 3199 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 3009 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:52,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [671 Valid, 3009 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:29:52,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60136 states. [2022-01-18 13:29:52,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60136 to 24296. [2022-01-18 13:29:52,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24296 states, 24295 states have (on average 4.008108664334225) internal successors, (97377), 24295 states have internal predecessors, (97377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:53,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24296 states to 24296 states and 97377 transitions. [2022-01-18 13:29:53,036 INFO L78 Accepts]: Start accepts. Automaton has 24296 states and 97377 transitions. Word has length 117 [2022-01-18 13:29:53,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:53,036 INFO L470 AbstractCegarLoop]: Abstraction has 24296 states and 97377 transitions. [2022-01-18 13:29:53,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:53,036 INFO L276 IsEmpty]: Start isEmpty. Operand 24296 states and 97377 transitions. [2022-01-18 13:29:53,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:29:53,085 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:53,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:29:53,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-01-18 13:29:53,085 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:29:53,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:53,085 INFO L85 PathProgramCache]: Analyzing trace with hash 659508265, now seen corresponding path program 160 times [2022-01-18 13:29:53,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:53,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361643122] [2022-01-18 13:29:53,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:53,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:53,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:53,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:53,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361643122] [2022-01-18 13:29:53,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361643122] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:29:53,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:29:53,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:29:53,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497140698] [2022-01-18 13:29:53,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:29:53,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:29:53,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:53,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:29:53,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:29:53,889 INFO L87 Difference]: Start difference. First operand 24296 states and 97377 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:55,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:55,397 INFO L93 Difference]: Finished difference Result 61312 states and 240507 transitions. [2022-01-18 13:29:55,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:29:55,398 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:29:55,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:55,601 INFO L225 Difference]: With dead ends: 61312 [2022-01-18 13:29:55,601 INFO L226 Difference]: Without dead ends: 60730 [2022-01-18 13:29:55,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:29:55,602 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 945 mSDsluCounter, 2835 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:55,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [945 Valid, 2699 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:29:55,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60730 states. [2022-01-18 13:29:56,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60730 to 24332. [2022-01-18 13:29:56,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24332 states, 24331 states have (on average 4.006740372364473) internal successors, (97488), 24331 states have internal predecessors, (97488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:56,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24332 states to 24332 states and 97488 transitions. [2022-01-18 13:29:56,608 INFO L78 Accepts]: Start accepts. Automaton has 24332 states and 97488 transitions. Word has length 117 [2022-01-18 13:29:56,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:56,608 INFO L470 AbstractCegarLoop]: Abstraction has 24332 states and 97488 transitions. [2022-01-18 13:29:56,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:56,608 INFO L276 IsEmpty]: Start isEmpty. Operand 24332 states and 97488 transitions. [2022-01-18 13:29:56,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:29:56,654 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:56,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:29:56,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-01-18 13:29:56,654 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:29:56,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:56,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1023017857, now seen corresponding path program 161 times [2022-01-18 13:29:56,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:56,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145077547] [2022-01-18 13:29:56,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:56,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:57,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:57,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:57,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145077547] [2022-01-18 13:29:57,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145077547] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:29:57,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:29:57,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:29:57,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96213735] [2022-01-18 13:29:57,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:29:57,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:29:57,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:57,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:29:57,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:29:57,225 INFO L87 Difference]: Start difference. First operand 24332 states and 97488 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:58,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:58,927 INFO L93 Difference]: Finished difference Result 60727 states and 238539 transitions. [2022-01-18 13:29:58,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:29:58,927 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:29:58,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:59,133 INFO L225 Difference]: With dead ends: 60727 [2022-01-18 13:29:59,133 INFO L226 Difference]: Without dead ends: 60028 [2022-01-18 13:29:59,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:29:59,133 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 713 mSDsluCounter, 3087 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:59,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [713 Valid, 2906 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:29:59,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60028 states. [2022-01-18 13:30:00,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60028 to 24188. [2022-01-18 13:30:00,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24188 states, 24187 states have (on average 4.007772770496548) internal successors, (96936), 24187 states have internal predecessors, (96936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:00,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24188 states to 24188 states and 96936 transitions. [2022-01-18 13:30:00,168 INFO L78 Accepts]: Start accepts. Automaton has 24188 states and 96936 transitions. Word has length 117 [2022-01-18 13:30:00,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:00,168 INFO L470 AbstractCegarLoop]: Abstraction has 24188 states and 96936 transitions. [2022-01-18 13:30:00,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:00,169 INFO L276 IsEmpty]: Start isEmpty. Operand 24188 states and 96936 transitions. [2022-01-18 13:30:00,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:30:00,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:00,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:30:00,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-01-18 13:30:00,214 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:30:00,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:00,214 INFO L85 PathProgramCache]: Analyzing trace with hash -481361639, now seen corresponding path program 162 times [2022-01-18 13:30:00,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:00,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42164191] [2022-01-18 13:30:00,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:00,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:00,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:00,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:00,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42164191] [2022-01-18 13:30:00,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42164191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:30:00,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:30:00,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:30:00,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902296832] [2022-01-18 13:30:00,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:30:00,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:30:00,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:00,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:30:00,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:30:00,754 INFO L87 Difference]: Start difference. First operand 24188 states and 96936 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:02,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:30:02,594 INFO L93 Difference]: Finished difference Result 60691 states and 238392 transitions. [2022-01-18 13:30:02,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:30:02,595 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:30:02,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:30:02,826 INFO L225 Difference]: With dead ends: 60691 [2022-01-18 13:30:02,826 INFO L226 Difference]: Without dead ends: 60109 [2022-01-18 13:30:02,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=221, Invalid=481, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:30:02,827 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 717 mSDsluCounter, 2981 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 2818 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:30:02,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [717 Valid, 2818 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:30:02,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60109 states. [2022-01-18 13:30:03,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60109 to 24296. [2022-01-18 13:30:03,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24296 states, 24295 states have (on average 4.0066268779584275) internal successors, (97341), 24295 states have internal predecessors, (97341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:03,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24296 states to 24296 states and 97341 transitions. [2022-01-18 13:30:03,616 INFO L78 Accepts]: Start accepts. Automaton has 24296 states and 97341 transitions. Word has length 117 [2022-01-18 13:30:03,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:03,616 INFO L470 AbstractCegarLoop]: Abstraction has 24296 states and 97341 transitions. [2022-01-18 13:30:03,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:03,617 INFO L276 IsEmpty]: Start isEmpty. Operand 24296 states and 97341 transitions. [2022-01-18 13:30:03,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:30:03,662 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:03,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:30:03,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-01-18 13:30:03,662 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:30:03,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:03,662 INFO L85 PathProgramCache]: Analyzing trace with hash 2131079535, now seen corresponding path program 163 times [2022-01-18 13:30:03,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:03,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970350705] [2022-01-18 13:30:03,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:03,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:04,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:04,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:04,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970350705] [2022-01-18 13:30:04,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970350705] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:30:04,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:30:04,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:30:04,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783942175] [2022-01-18 13:30:04,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:30:04,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:30:04,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:04,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:30:04,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:30:04,456 INFO L87 Difference]: Start difference. First operand 24296 states and 97341 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:05,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:30:05,957 INFO L93 Difference]: Finished difference Result 60664 states and 238266 transitions. [2022-01-18 13:30:05,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:30:05,957 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:30:05,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:30:06,161 INFO L225 Difference]: With dead ends: 60664 [2022-01-18 13:30:06,161 INFO L226 Difference]: Without dead ends: 60073 [2022-01-18 13:30:06,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=221, Invalid=481, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:30:06,161 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 829 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 2588 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:30:06,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [829 Valid, 2588 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:30:06,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60073 states. [2022-01-18 13:30:07,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60073 to 24260. [2022-01-18 13:30:07,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24260 states, 24259 states have (on average 4.006513046704316) internal successors, (97194), 24259 states have internal predecessors, (97194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:07,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24260 states to 24260 states and 97194 transitions. [2022-01-18 13:30:07,172 INFO L78 Accepts]: Start accepts. Automaton has 24260 states and 97194 transitions. Word has length 117 [2022-01-18 13:30:07,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:07,172 INFO L470 AbstractCegarLoop]: Abstraction has 24260 states and 97194 transitions. [2022-01-18 13:30:07,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:07,173 INFO L276 IsEmpty]: Start isEmpty. Operand 24260 states and 97194 transitions. [2022-01-18 13:30:07,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:30:07,218 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:07,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:30:07,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-01-18 13:30:07,218 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:30:07,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:07,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1916492833, now seen corresponding path program 164 times [2022-01-18 13:30:07,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:07,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526751076] [2022-01-18 13:30:07,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:07,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:07,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:07,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:07,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526751076] [2022-01-18 13:30:07,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526751076] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:30:07,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:30:07,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:30:07,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993227721] [2022-01-18 13:30:07,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:30:07,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:30:07,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:07,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:30:07,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:30:07,801 INFO L87 Difference]: Start difference. First operand 24260 states and 97194 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:09,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:30:09,494 INFO L93 Difference]: Finished difference Result 60070 states and 236277 transitions. [2022-01-18 13:30:09,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:30:09,495 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:30:09,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:30:09,698 INFO L225 Difference]: With dead ends: 60070 [2022-01-18 13:30:09,699 INFO L226 Difference]: Without dead ends: 58795 [2022-01-18 13:30:09,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=479, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:30:09,699 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 630 mSDsluCounter, 3003 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 2848 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:30:09,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [630 Valid, 2848 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:30:09,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58795 states. [2022-01-18 13:30:10,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58795 to 23756. [2022-01-18 13:30:10,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23756 states, 23755 states have (on average 4.015828246684908) internal successors, (95396), 23755 states have internal predecessors, (95396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:10,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23756 states to 23756 states and 95396 transitions. [2022-01-18 13:30:10,739 INFO L78 Accepts]: Start accepts. Automaton has 23756 states and 95396 transitions. Word has length 117 [2022-01-18 13:30:10,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:10,739 INFO L470 AbstractCegarLoop]: Abstraction has 23756 states and 95396 transitions. [2022-01-18 13:30:10,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:10,739 INFO L276 IsEmpty]: Start isEmpty. Operand 23756 states and 95396 transitions. [2022-01-18 13:30:10,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:30:10,784 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:10,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:30:10,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-01-18 13:30:10,785 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:30:10,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:10,785 INFO L85 PathProgramCache]: Analyzing trace with hash -330487075, now seen corresponding path program 165 times [2022-01-18 13:30:10,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:10,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460404277] [2022-01-18 13:30:10,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:10,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:11,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:11,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:11,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460404277] [2022-01-18 13:30:11,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460404277] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:30:11,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:30:11,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:30:11,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756751843] [2022-01-18 13:30:11,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:30:11,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:30:11,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:11,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:30:11,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:30:11,362 INFO L87 Difference]: Start difference. First operand 23756 states and 95396 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:12,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:30:12,884 INFO L93 Difference]: Finished difference Result 58213 states and 229207 transitions. [2022-01-18 13:30:12,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:30:12,884 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:30:12,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:30:13,345 INFO L225 Difference]: With dead ends: 58213 [2022-01-18 13:30:13,345 INFO L226 Difference]: Without dead ends: 57226 [2022-01-18 13:30:13,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=219, Invalid=483, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:30:13,345 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 686 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:30:13,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [686 Valid, 2903 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:30:13,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57226 states. [2022-01-18 13:30:14,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57226 to 24344. [2022-01-18 13:30:14,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24344 states, 24343 states have (on average 4.0082569937969845) internal successors, (97573), 24343 states have internal predecessors, (97573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:14,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24344 states to 24344 states and 97573 transitions. [2022-01-18 13:30:14,204 INFO L78 Accepts]: Start accepts. Automaton has 24344 states and 97573 transitions. Word has length 117 [2022-01-18 13:30:14,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:14,205 INFO L470 AbstractCegarLoop]: Abstraction has 24344 states and 97573 transitions. [2022-01-18 13:30:14,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:14,205 INFO L276 IsEmpty]: Start isEmpty. Operand 24344 states and 97573 transitions. [2022-01-18 13:30:14,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:30:14,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:14,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:30:14,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-01-18 13:30:14,251 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:30:14,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:14,254 INFO L85 PathProgramCache]: Analyzing trace with hash 641065821, now seen corresponding path program 166 times [2022-01-18 13:30:14,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:14,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626021189] [2022-01-18 13:30:14,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:14,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:14,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:14,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:14,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626021189] [2022-01-18 13:30:14,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626021189] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:30:14,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:30:14,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:30:14,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986781916] [2022-01-18 13:30:14,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:30:14,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:30:14,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:14,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:30:14,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:30:14,808 INFO L87 Difference]: Start difference. First operand 24344 states and 97573 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:16,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:30:16,629 INFO L93 Difference]: Finished difference Result 58402 states and 229603 transitions. [2022-01-18 13:30:16,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:30:16,629 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:30:16,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:30:16,832 INFO L225 Difference]: With dead ends: 58402 [2022-01-18 13:30:16,832 INFO L226 Difference]: Without dead ends: 57820 [2022-01-18 13:30:16,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=219, Invalid=483, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:30:16,833 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 786 mSDsluCounter, 3178 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 2992 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 13:30:16,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [786 Valid, 2992 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 13:30:16,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57820 states. [2022-01-18 13:30:17,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57820 to 24380. [2022-01-18 13:30:17,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24380 states, 24379 states have (on average 4.00689117683252) internal successors, (97684), 24379 states have internal predecessors, (97684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:17,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24380 states to 24380 states and 97684 transitions. [2022-01-18 13:30:17,887 INFO L78 Accepts]: Start accepts. Automaton has 24380 states and 97684 transitions. Word has length 117 [2022-01-18 13:30:17,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:17,887 INFO L470 AbstractCegarLoop]: Abstraction has 24380 states and 97684 transitions. [2022-01-18 13:30:17,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:17,887 INFO L276 IsEmpty]: Start isEmpty. Operand 24380 states and 97684 transitions. [2022-01-18 13:30:17,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:30:17,934 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:17,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:30:17,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-01-18 13:30:17,934 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:30:17,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:17,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1130934579, now seen corresponding path program 167 times [2022-01-18 13:30:17,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:17,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512279463] [2022-01-18 13:30:17,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:17,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:18,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:18,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:18,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512279463] [2022-01-18 13:30:18,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512279463] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:30:18,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:30:18,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:30:18,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751260136] [2022-01-18 13:30:18,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:30:18,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:30:18,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:18,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:30:18,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:30:18,494 INFO L87 Difference]: Start difference. First operand 24380 states and 97684 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:20,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:30:20,254 INFO L93 Difference]: Finished difference Result 57817 states and 227635 transitions. [2022-01-18 13:30:20,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:30:20,255 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:30:20,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:30:20,463 INFO L225 Difference]: With dead ends: 57817 [2022-01-18 13:30:20,463 INFO L226 Difference]: Without dead ends: 57118 [2022-01-18 13:30:20,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=219, Invalid=483, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:30:20,463 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 703 mSDsluCounter, 2941 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:30:20,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [703 Valid, 2788 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:30:20,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57118 states. [2022-01-18 13:30:21,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57118 to 24236. [2022-01-18 13:30:21,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24236 states, 24235 states have (on average 4.007922426243037) internal successors, (97132), 24235 states have internal predecessors, (97132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:21,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24236 states to 24236 states and 97132 transitions. [2022-01-18 13:30:21,286 INFO L78 Accepts]: Start accepts. Automaton has 24236 states and 97132 transitions. Word has length 117 [2022-01-18 13:30:21,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:21,287 INFO L470 AbstractCegarLoop]: Abstraction has 24236 states and 97132 transitions. [2022-01-18 13:30:21,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:21,287 INFO L276 IsEmpty]: Start isEmpty. Operand 24236 states and 97132 transitions. [2022-01-18 13:30:21,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:30:21,496 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:21,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:30:21,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-01-18 13:30:21,496 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:30:21,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:21,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1748745285, now seen corresponding path program 168 times [2022-01-18 13:30:21,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:21,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430298192] [2022-01-18 13:30:21,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:21,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:22,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:22,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:22,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430298192] [2022-01-18 13:30:22,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430298192] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:30:22,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:30:22,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:30:22,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824634679] [2022-01-18 13:30:22,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:30:22,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:30:22,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:22,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:30:22,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:30:22,057 INFO L87 Difference]: Start difference. First operand 24236 states and 97132 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:23,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:30:23,635 INFO L93 Difference]: Finished difference Result 58321 states and 229468 transitions. [2022-01-18 13:30:23,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:30:23,635 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:30:23,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:30:23,816 INFO L225 Difference]: With dead ends: 58321 [2022-01-18 13:30:23,816 INFO L226 Difference]: Without dead ends: 57739 [2022-01-18 13:30:23,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=262, Invalid=550, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:30:23,817 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 694 mSDsluCounter, 3221 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 3068 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:30:23,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [694 Valid, 3068 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:30:23,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57739 states. [2022-01-18 13:30:24,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57739 to 24344. [2022-01-18 13:30:24,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24344 states, 24343 states have (on average 4.006778129236331) internal successors, (97537), 24343 states have internal predecessors, (97537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:24,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24344 states to 24344 states and 97537 transitions. [2022-01-18 13:30:24,700 INFO L78 Accepts]: Start accepts. Automaton has 24344 states and 97537 transitions. Word has length 117 [2022-01-18 13:30:24,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:24,701 INFO L470 AbstractCegarLoop]: Abstraction has 24344 states and 97537 transitions. [2022-01-18 13:30:24,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:24,701 INFO L276 IsEmpty]: Start isEmpty. Operand 24344 states and 97537 transitions. [2022-01-18 13:30:24,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:30:24,745 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:24,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:30:24,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-01-18 13:30:24,745 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:30:24,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:24,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1258876527, now seen corresponding path program 169 times [2022-01-18 13:30:24,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:24,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766011762] [2022-01-18 13:30:24,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:24,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:25,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:25,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:25,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766011762] [2022-01-18 13:30:25,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766011762] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:30:25,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:30:25,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:30:25,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312900093] [2022-01-18 13:30:25,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:30:25,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:30:25,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:25,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:30:25,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:30:25,293 INFO L87 Difference]: Start difference. First operand 24344 states and 97537 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:26,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:30:26,908 INFO L93 Difference]: Finished difference Result 58294 states and 229342 transitions. [2022-01-18 13:30:26,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:30:26,909 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:30:26,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:30:27,090 INFO L225 Difference]: With dead ends: 58294 [2022-01-18 13:30:27,090 INFO L226 Difference]: Without dead ends: 57703 [2022-01-18 13:30:27,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=242, Invalid=514, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:30:27,091 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 736 mSDsluCounter, 3056 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 2898 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:30:27,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [736 Valid, 2898 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:30:27,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57703 states. [2022-01-18 13:30:27,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57703 to 24308. [2022-01-18 13:30:27,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24308 states, 24307 states have (on average 4.006664746780762) internal successors, (97390), 24307 states have internal predecessors, (97390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:28,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24308 states to 24308 states and 97390 transitions. [2022-01-18 13:30:28,025 INFO L78 Accepts]: Start accepts. Automaton has 24308 states and 97390 transitions. Word has length 117 [2022-01-18 13:30:28,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:28,025 INFO L470 AbstractCegarLoop]: Abstraction has 24308 states and 97390 transitions. [2022-01-18 13:30:28,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:28,025 INFO L276 IsEmpty]: Start isEmpty. Operand 24308 states and 97390 transitions. [2022-01-18 13:30:28,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:30:28,069 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:28,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:30:28,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-01-18 13:30:28,069 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:30:28,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:28,070 INFO L85 PathProgramCache]: Analyzing trace with hash 2124136643, now seen corresponding path program 170 times [2022-01-18 13:30:28,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:28,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779465568] [2022-01-18 13:30:28,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:28,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:28,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:28,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:28,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779465568] [2022-01-18 13:30:28,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779465568] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:30:28,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:30:28,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:30:28,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142382419] [2022-01-18 13:30:28,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:30:28,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:30:28,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:28,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:30:28,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:30:28,633 INFO L87 Difference]: Start difference. First operand 24308 states and 97390 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:30,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:30:30,437 INFO L93 Difference]: Finished difference Result 57700 states and 227353 transitions. [2022-01-18 13:30:30,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:30:30,437 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:30:30,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:30:30,643 INFO L225 Difference]: With dead ends: 57700 [2022-01-18 13:30:30,643 INFO L226 Difference]: Without dead ends: 56425 [2022-01-18 13:30:30,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=244, Invalid=512, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:30:30,644 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 644 mSDsluCounter, 3028 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 2871 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:30:30,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [644 Valid, 2871 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:30:30,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56425 states. [2022-01-18 13:30:31,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56425 to 23804. [2022-01-18 13:30:31,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23804 states, 23803 states have (on average 4.013611729613914) internal successors, (95536), 23803 states have internal predecessors, (95536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:31,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23804 states to 23804 states and 95536 transitions. [2022-01-18 13:30:31,376 INFO L78 Accepts]: Start accepts. Automaton has 23804 states and 95536 transitions. Word has length 117 [2022-01-18 13:30:31,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:31,376 INFO L470 AbstractCegarLoop]: Abstraction has 23804 states and 95536 transitions. [2022-01-18 13:30:31,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:31,376 INFO L276 IsEmpty]: Start isEmpty. Operand 23804 states and 95536 transitions. [2022-01-18 13:30:31,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:30:31,420 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:31,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:30:31,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-01-18 13:30:31,420 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:30:31,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:31,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1991293655, now seen corresponding path program 171 times [2022-01-18 13:30:31,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:31,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385609539] [2022-01-18 13:30:31,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:31,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:32,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:32,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:32,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385609539] [2022-01-18 13:30:32,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385609539] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:30:32,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:30:32,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:30:32,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726958018] [2022-01-18 13:30:32,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:30:32,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:30:32,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:32,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:30:32,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:30:32,169 INFO L87 Difference]: Start difference. First operand 23804 states and 95536 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:33,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:30:33,700 INFO L93 Difference]: Finished difference Result 57751 states and 227492 transitions. [2022-01-18 13:30:33,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:30:33,701 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:30:33,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:30:33,885 INFO L225 Difference]: With dead ends: 57751 [2022-01-18 13:30:33,886 INFO L226 Difference]: Without dead ends: 56764 [2022-01-18 13:30:33,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:30:33,886 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 684 mSDsluCounter, 3183 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 3003 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:30:33,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [684 Valid, 3003 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:30:33,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56764 states. [2022-01-18 13:30:34,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56764 to 24071. [2022-01-18 13:30:34,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24071 states, 24070 states have (on average 4.009638554216868) internal successors, (96512), 24070 states have internal predecessors, (96512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:34,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24071 states to 24071 states and 96512 transitions. [2022-01-18 13:30:34,826 INFO L78 Accepts]: Start accepts. Automaton has 24071 states and 96512 transitions. Word has length 117 [2022-01-18 13:30:34,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:34,826 INFO L470 AbstractCegarLoop]: Abstraction has 24071 states and 96512 transitions. [2022-01-18 13:30:34,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:34,826 INFO L276 IsEmpty]: Start isEmpty. Operand 24071 states and 96512 transitions. [2022-01-18 13:30:34,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:30:34,871 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:34,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:30:34,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-01-18 13:30:34,871 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:30:34,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:34,871 INFO L85 PathProgramCache]: Analyzing trace with hash 79882795, now seen corresponding path program 172 times [2022-01-18 13:30:34,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:34,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916847455] [2022-01-18 13:30:34,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:34,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:35,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:35,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:35,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916847455] [2022-01-18 13:30:35,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916847455] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:30:35,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:30:35,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:30:35,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695861499] [2022-01-18 13:30:35,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:30:35,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:30:35,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:35,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:30:35,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:30:35,449 INFO L87 Difference]: Start difference. First operand 24071 states and 96512 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:37,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:30:37,120 INFO L93 Difference]: Finished difference Result 57985 states and 228008 transitions. [2022-01-18 13:30:37,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:30:37,121 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:30:37,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:30:37,315 INFO L225 Difference]: With dead ends: 57985 [2022-01-18 13:30:37,315 INFO L226 Difference]: Without dead ends: 57403 [2022-01-18 13:30:37,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:30:37,315 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 822 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 2999 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:30:37,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [822 Valid, 2999 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:30:37,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57403 states. [2022-01-18 13:30:37,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57403 to 24116. [2022-01-18 13:30:38,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24116 states, 24115 states have (on average 4.007754509641302) internal successors, (96647), 24115 states have internal predecessors, (96647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:38,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24116 states to 24116 states and 96647 transitions. [2022-01-18 13:30:38,356 INFO L78 Accepts]: Start accepts. Automaton has 24116 states and 96647 transitions. Word has length 117 [2022-01-18 13:30:38,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:38,357 INFO L470 AbstractCegarLoop]: Abstraction has 24116 states and 96647 transitions. [2022-01-18 13:30:38,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:38,363 INFO L276 IsEmpty]: Start isEmpty. Operand 24116 states and 96647 transitions. [2022-01-18 13:30:38,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:30:38,408 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:38,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:30:38,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-01-18 13:30:38,408 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:30:38,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:38,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1738417351, now seen corresponding path program 173 times [2022-01-18 13:30:38,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:38,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911614729] [2022-01-18 13:30:38,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:38,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:38,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:38,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:38,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911614729] [2022-01-18 13:30:38,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911614729] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:30:38,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:30:38,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:30:38,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634064813] [2022-01-18 13:30:38,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:30:38,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:30:38,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:38,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:30:38,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:30:38,961 INFO L87 Difference]: Start difference. First operand 24116 states and 96647 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:40,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:30:40,481 INFO L93 Difference]: Finished difference Result 57400 states and 226031 transitions. [2022-01-18 13:30:40,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:30:40,482 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:30:40,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:30:40,662 INFO L225 Difference]: With dead ends: 57400 [2022-01-18 13:30:40,662 INFO L226 Difference]: Without dead ends: 56629 [2022-01-18 13:30:40,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:30:40,662 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 743 mSDsluCounter, 2860 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:30:40,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [743 Valid, 2729 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:30:40,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56629 states. [2022-01-18 13:30:41,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56629 to 23936. [2022-01-18 13:30:41,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23936 states, 23935 states have (on average 4.013829120534782) internal successors, (96071), 23935 states have internal predecessors, (96071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:41,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23936 states to 23936 states and 96071 transitions. [2022-01-18 13:30:41,606 INFO L78 Accepts]: Start accepts. Automaton has 23936 states and 96071 transitions. Word has length 117 [2022-01-18 13:30:41,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:41,606 INFO L470 AbstractCegarLoop]: Abstraction has 23936 states and 96071 transitions. [2022-01-18 13:30:41,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:41,606 INFO L276 IsEmpty]: Start isEmpty. Operand 23936 states and 96071 transitions. [2022-01-18 13:30:41,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:30:41,650 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:41,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:30:41,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-01-18 13:30:41,650 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:30:41,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:41,651 INFO L85 PathProgramCache]: Analyzing trace with hash -23163657, now seen corresponding path program 174 times [2022-01-18 13:30:41,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:41,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436939389] [2022-01-18 13:30:41,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:41,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:42,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:42,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:42,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436939389] [2022-01-18 13:30:42,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436939389] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:30:42,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:30:42,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:30:42,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568901169] [2022-01-18 13:30:42,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:30:42,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:30:42,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:42,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:30:42,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:30:42,176 INFO L87 Difference]: Start difference. First operand 23936 states and 96071 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:43,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:30:43,815 INFO L93 Difference]: Finished difference Result 58453 states and 229841 transitions. [2022-01-18 13:30:43,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:30:43,815 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:30:43,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:30:44,005 INFO L225 Difference]: With dead ends: 58453 [2022-01-18 13:30:44,005 INFO L226 Difference]: Without dead ends: 57466 [2022-01-18 13:30:44,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:30:44,006 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 742 mSDsluCounter, 3157 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 2971 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:30:44,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [742 Valid, 2971 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:30:44,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57466 states. [2022-01-18 13:30:44,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57466 to 24044. [2022-01-18 13:30:44,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24044 states, 24043 states have (on average 4.0096493781973965) internal successors, (96404), 24043 states have internal predecessors, (96404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:44,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24044 states to 24044 states and 96404 transitions. [2022-01-18 13:30:44,967 INFO L78 Accepts]: Start accepts. Automaton has 24044 states and 96404 transitions. Word has length 117 [2022-01-18 13:30:44,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:44,967 INFO L470 AbstractCegarLoop]: Abstraction has 24044 states and 96404 transitions. [2022-01-18 13:30:44,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:44,967 INFO L276 IsEmpty]: Start isEmpty. Operand 24044 states and 96404 transitions. [2022-01-18 13:30:45,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:30:45,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:45,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:30:45,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-01-18 13:30:45,012 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:30:45,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:45,012 INFO L85 PathProgramCache]: Analyzing trace with hash 505888119, now seen corresponding path program 175 times [2022-01-18 13:30:45,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:45,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741683315] [2022-01-18 13:30:45,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:45,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:45,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:45,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:45,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741683315] [2022-01-18 13:30:45,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741683315] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:30:45,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:30:45,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:30:45,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437880486] [2022-01-18 13:30:45,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:30:45,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:30:45,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:45,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:30:45,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:30:45,553 INFO L87 Difference]: Start difference. First operand 24044 states and 96404 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:47,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:30:47,360 INFO L93 Difference]: Finished difference Result 58057 states and 228305 transitions. [2022-01-18 13:30:47,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:30:47,361 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:30:47,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:30:47,574 INFO L225 Difference]: With dead ends: 58057 [2022-01-18 13:30:47,574 INFO L226 Difference]: Without dead ends: 57475 [2022-01-18 13:30:47,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:30:47,575 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 842 mSDsluCounter, 2837 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:30:47,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [842 Valid, 2711 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:30:47,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57475 states. [2022-01-18 13:30:48,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57475 to 24080. [2022-01-18 13:30:48,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24080 states, 24079 states have (on average 4.008264462809917) internal successors, (96515), 24079 states have internal predecessors, (96515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:48,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24080 states to 24080 states and 96515 transitions. [2022-01-18 13:30:48,364 INFO L78 Accepts]: Start accepts. Automaton has 24080 states and 96515 transitions. Word has length 117 [2022-01-18 13:30:48,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:48,364 INFO L470 AbstractCegarLoop]: Abstraction has 24080 states and 96515 transitions. [2022-01-18 13:30:48,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:48,365 INFO L276 IsEmpty]: Start isEmpty. Operand 24080 states and 96515 transitions. [2022-01-18 13:30:48,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:30:48,413 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:48,413 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:30:48,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-01-18 13:30:48,413 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:30:48,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:48,413 INFO L85 PathProgramCache]: Analyzing trace with hash 995756877, now seen corresponding path program 176 times [2022-01-18 13:30:48,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:48,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784681997] [2022-01-18 13:30:48,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:48,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:49,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:49,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:49,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784681997] [2022-01-18 13:30:49,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784681997] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:30:49,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:30:49,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:30:49,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155712098] [2022-01-18 13:30:49,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:30:49,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:30:49,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:49,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:30:49,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:30:49,214 INFO L87 Difference]: Start difference. First operand 24080 states and 96515 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:50,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:30:50,729 INFO L93 Difference]: Finished difference Result 57472 states and 226337 transitions. [2022-01-18 13:30:50,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:30:50,730 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:30:50,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:30:50,909 INFO L225 Difference]: With dead ends: 57472 [2022-01-18 13:30:50,909 INFO L226 Difference]: Without dead ends: 56773 [2022-01-18 13:30:50,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:30:50,910 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 685 mSDsluCounter, 2950 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 2804 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:30:50,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [685 Valid, 2804 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:30:50,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56773 states. [2022-01-18 13:30:51,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56773 to 23936. [2022-01-18 13:30:51,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23936 states, 23935 states have (on average 4.012325047002298) internal successors, (96035), 23935 states have internal predecessors, (96035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:51,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23936 states to 23936 states and 96035 transitions. [2022-01-18 13:30:51,838 INFO L78 Accepts]: Start accepts. Automaton has 23936 states and 96035 transitions. Word has length 117 [2022-01-18 13:30:51,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:51,838 INFO L470 AbstractCegarLoop]: Abstraction has 23936 states and 96035 transitions. [2022-01-18 13:30:51,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:51,838 INFO L276 IsEmpty]: Start isEmpty. Operand 23936 states and 96035 transitions. [2022-01-18 13:30:51,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:30:51,883 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:51,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:30:51,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-01-18 13:30:51,884 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:30:51,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:51,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1276382091, now seen corresponding path program 177 times [2022-01-18 13:30:51,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:51,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328868332] [2022-01-18 13:30:51,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:51,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:52,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:52,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:52,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328868332] [2022-01-18 13:30:52,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328868332] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:30:52,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:30:52,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:30:52,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046874760] [2022-01-18 13:30:52,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:30:52,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:30:52,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:52,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:30:52,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:30:52,444 INFO L87 Difference]: Start difference. First operand 23936 states and 96035 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:54,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:30:54,133 INFO L93 Difference]: Finished difference Result 58627 states and 230215 transitions. [2022-01-18 13:30:54,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:30:54,134 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:30:54,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:30:54,326 INFO L225 Difference]: With dead ends: 58627 [2022-01-18 13:30:54,326 INFO L226 Difference]: Without dead ends: 58045 [2022-01-18 13:30:54,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:30:54,326 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 887 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 2890 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:30:54,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [887 Valid, 2890 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:30:54,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58045 states. [2022-01-18 13:30:54,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58045 to 23993. [2022-01-18 13:30:55,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23993 states, 23992 states have (on average 4.010628542847616) internal successors, (96223), 23992 states have internal predecessors, (96223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:55,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23993 states to 23993 states and 96223 transitions. [2022-01-18 13:30:55,337 INFO L78 Accepts]: Start accepts. Automaton has 23993 states and 96223 transitions. Word has length 117 [2022-01-18 13:30:55,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:55,337 INFO L470 AbstractCegarLoop]: Abstraction has 23993 states and 96223 transitions. [2022-01-18 13:30:55,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:55,337 INFO L276 IsEmpty]: Start isEmpty. Operand 23993 states and 96223 transitions. [2022-01-18 13:30:55,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:30:55,383 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:55,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:30:55,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-01-18 13:30:55,383 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:30:55,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:55,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1990700359, now seen corresponding path program 178 times [2022-01-18 13:30:55,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:55,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83113877] [2022-01-18 13:30:55,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:55,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:55,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:55,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:55,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83113877] [2022-01-18 13:30:55,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83113877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:30:55,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:30:55,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:30:55,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658351560] [2022-01-18 13:30:55,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:30:55,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:30:55,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:55,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:30:55,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:30:55,996 INFO L87 Difference]: Start difference. First operand 23993 states and 96223 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:57,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:30:57,493 INFO L93 Difference]: Finished difference Result 58636 states and 230194 transitions. [2022-01-18 13:30:57,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:30:57,493 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:30:57,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:30:57,685 INFO L225 Difference]: With dead ends: 58636 [2022-01-18 13:30:57,686 INFO L226 Difference]: Without dead ends: 58000 [2022-01-18 13:30:57,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:30:57,686 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 936 mSDsluCounter, 2846 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 2719 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:30:57,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [936 Valid, 2719 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:30:58,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58000 states. [2022-01-18 13:30:58,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58000 to 23948. [2022-01-18 13:30:58,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23948 states, 23947 states have (on average 4.012026558650353) internal successors, (96076), 23947 states have internal predecessors, (96076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:58,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23948 states to 23948 states and 96076 transitions. [2022-01-18 13:30:58,644 INFO L78 Accepts]: Start accepts. Automaton has 23948 states and 96076 transitions. Word has length 117 [2022-01-18 13:30:58,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:58,644 INFO L470 AbstractCegarLoop]: Abstraction has 23948 states and 96076 transitions. [2022-01-18 13:30:58,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:58,644 INFO L276 IsEmpty]: Start isEmpty. Operand 23948 states and 96076 transitions. [2022-01-18 13:30:58,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:30:58,689 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:58,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:30:58,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-01-18 13:30:58,689 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:30:58,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:58,690 INFO L85 PathProgramCache]: Analyzing trace with hash 728223381, now seen corresponding path program 179 times [2022-01-18 13:30:58,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:58,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711197025] [2022-01-18 13:30:58,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:58,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:59,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:59,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:59,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711197025] [2022-01-18 13:30:59,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711197025] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:30:59,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:30:59,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:30:59,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527798990] [2022-01-18 13:30:59,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:30:59,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:30:59,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:59,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:30:59,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:30:59,253 INFO L87 Difference]: Start difference. First operand 23948 states and 96076 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:00,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:31:00,869 INFO L93 Difference]: Finished difference Result 58591 states and 230080 transitions. [2022-01-18 13:31:00,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:31:00,869 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:31:00,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:31:01,052 INFO L225 Difference]: With dead ends: 58591 [2022-01-18 13:31:01,052 INFO L226 Difference]: Without dead ends: 58009 [2022-01-18 13:31:01,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:31:01,052 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 819 mSDsluCounter, 3214 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 3035 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:31:01,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [819 Valid, 3035 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:31:01,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58009 states. [2022-01-18 13:31:01,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58009 to 23984. [2022-01-18 13:31:01,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23984 states, 23983 states have (on average 4.010632531376392) internal successors, (96187), 23983 states have internal predecessors, (96187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:01,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23984 states to 23984 states and 96187 transitions. [2022-01-18 13:31:01,959 INFO L78 Accepts]: Start accepts. Automaton has 23984 states and 96187 transitions. Word has length 117 [2022-01-18 13:31:01,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:31:01,960 INFO L470 AbstractCegarLoop]: Abstraction has 23984 states and 96187 transitions. [2022-01-18 13:31:01,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:01,960 INFO L276 IsEmpty]: Start isEmpty. Operand 23984 states and 96187 transitions. [2022-01-18 13:31:02,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:31:02,004 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:31:02,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:31:02,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-01-18 13:31:02,004 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:31:02,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:31:02,004 INFO L85 PathProgramCache]: Analyzing trace with hash -2049403797, now seen corresponding path program 180 times [2022-01-18 13:31:02,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:31:02,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660002097] [2022-01-18 13:31:02,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:31:02,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:31:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:31:02,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:31:02,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:31:02,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660002097] [2022-01-18 13:31:02,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660002097] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:31:02,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:31:02,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:31:02,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459121120] [2022-01-18 13:31:02,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:31:02,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:31:02,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:31:02,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:31:02,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:31:02,551 INFO L87 Difference]: Start difference. First operand 23984 states and 96187 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:04,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:31:04,280 INFO L93 Difference]: Finished difference Result 58114 states and 228517 transitions. [2022-01-18 13:31:04,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:31:04,280 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:31:04,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:31:04,480 INFO L225 Difference]: With dead ends: 58114 [2022-01-18 13:31:04,481 INFO L226 Difference]: Without dead ends: 57523 [2022-01-18 13:31:04,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:31:04,481 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 880 mSDsluCounter, 2878 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:31:04,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [880 Valid, 2747 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:31:04,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57523 states. [2022-01-18 13:31:05,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57523 to 23948. [2022-01-18 13:31:05,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23948 states, 23947 states have (on average 4.011525452039922) internal successors, (96064), 23947 states have internal predecessors, (96064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:05,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23948 states to 23948 states and 96064 transitions. [2022-01-18 13:31:05,201 INFO L78 Accepts]: Start accepts. Automaton has 23948 states and 96064 transitions. Word has length 117 [2022-01-18 13:31:05,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:31:05,201 INFO L470 AbstractCegarLoop]: Abstraction has 23948 states and 96064 transitions. [2022-01-18 13:31:05,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:05,201 INFO L276 IsEmpty]: Start isEmpty. Operand 23948 states and 96064 transitions. [2022-01-18 13:31:05,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:31:05,244 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:31:05,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:31:05,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-01-18 13:31:05,244 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:31:05,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:31:05,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1952278247, now seen corresponding path program 181 times [2022-01-18 13:31:05,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:31:05,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856603793] [2022-01-18 13:31:05,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:31:05,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:31:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:31:05,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:31:05,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:31:05,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856603793] [2022-01-18 13:31:05,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856603793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:31:05,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:31:05,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:31:05,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49948030] [2022-01-18 13:31:05,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:31:05,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:31:05,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:31:05,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:31:05,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:31:05,996 INFO L87 Difference]: Start difference. First operand 23948 states and 96064 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:07,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:31:07,580 INFO L93 Difference]: Finished difference Result 57862 states and 227584 transitions. [2022-01-18 13:31:07,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:31:07,580 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:31:07,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:31:07,759 INFO L225 Difference]: With dead ends: 57862 [2022-01-18 13:31:07,760 INFO L226 Difference]: Without dead ends: 57271 [2022-01-18 13:31:07,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:31:07,760 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 763 mSDsluCounter, 3273 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:31:07,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [763 Valid, 3079 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:31:07,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57271 states. [2022-01-18 13:31:08,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57271 to 23984. [2022-01-18 13:31:08,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23984 states, 23983 states have (on average 4.010132176958679) internal successors, (96175), 23983 states have internal predecessors, (96175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:08,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23984 states to 23984 states and 96175 transitions. [2022-01-18 13:31:08,657 INFO L78 Accepts]: Start accepts. Automaton has 23984 states and 96175 transitions. Word has length 117 [2022-01-18 13:31:08,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:31:08,657 INFO L470 AbstractCegarLoop]: Abstraction has 23984 states and 96175 transitions. [2022-01-18 13:31:08,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:08,657 INFO L276 IsEmpty]: Start isEmpty. Operand 23984 states and 96175 transitions. [2022-01-18 13:31:08,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:31:08,701 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:31:08,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:31:08,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-01-18 13:31:08,701 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:31:08,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:31:08,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1714617081, now seen corresponding path program 182 times [2022-01-18 13:31:08,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:31:08,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61705994] [2022-01-18 13:31:08,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:31:08,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:31:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:31:09,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:31:09,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:31:09,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61705994] [2022-01-18 13:31:09,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61705994] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:31:09,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:31:09,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:31:09,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038438000] [2022-01-18 13:31:09,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:31:09,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:31:09,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:31:09,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:31:09,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:31:09,265 INFO L87 Difference]: Start difference. First operand 23984 states and 96175 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:10,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:31:10,854 INFO L93 Difference]: Finished difference Result 57376 states and 225997 transitions. [2022-01-18 13:31:10,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:31:10,855 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:31:10,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:31:11,040 INFO L225 Difference]: With dead ends: 57376 [2022-01-18 13:31:11,040 INFO L226 Difference]: Without dead ends: 56737 [2022-01-18 13:31:11,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=487, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:31:11,041 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 830 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 2661 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:31:11,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [830 Valid, 2661 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:31:11,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56737 states. [2022-01-18 13:31:11,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56737 to 23900. [2022-01-18 13:31:11,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23900 states, 23899 states have (on average 4.013222310556927) internal successors, (95912), 23899 states have internal predecessors, (95912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:12,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23900 states to 23900 states and 95912 transitions. [2022-01-18 13:31:12,038 INFO L78 Accepts]: Start accepts. Automaton has 23900 states and 95912 transitions. Word has length 117 [2022-01-18 13:31:12,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:31:12,038 INFO L470 AbstractCegarLoop]: Abstraction has 23900 states and 95912 transitions. [2022-01-18 13:31:12,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:12,039 INFO L276 IsEmpty]: Start isEmpty. Operand 23900 states and 95912 transitions. [2022-01-18 13:31:12,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:31:12,082 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:31:12,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:31:12,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-01-18 13:31:12,082 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:31:12,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:31:12,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1271383541, now seen corresponding path program 183 times [2022-01-18 13:31:12,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:31:12,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701206573] [2022-01-18 13:31:12,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:31:12,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:31:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:31:12,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:31:12,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:31:12,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701206573] [2022-01-18 13:31:12,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701206573] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:31:12,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:31:12,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:31:12,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355398087] [2022-01-18 13:31:12,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:31:12,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:31:12,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:31:12,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:31:12,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:31:12,634 INFO L87 Difference]: Start difference. First operand 23900 states and 95912 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:14,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:31:14,188 INFO L93 Difference]: Finished difference Result 57355 states and 225968 transitions. [2022-01-18 13:31:14,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:31:14,189 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:31:14,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:31:14,603 INFO L225 Difference]: With dead ends: 57355 [2022-01-18 13:31:14,604 INFO L226 Difference]: Without dead ends: 56368 [2022-01-18 13:31:14,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:31:14,604 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 630 mSDsluCounter, 3170 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 2979 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:31:14,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [630 Valid, 2979 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:31:14,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56368 states. [2022-01-18 13:31:15,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56368 to 24296. [2022-01-18 13:31:15,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24296 states, 24295 states have (on average 4.008437950195513) internal successors, (97385), 24295 states have internal predecessors, (97385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:15,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24296 states to 24296 states and 97385 transitions. [2022-01-18 13:31:15,340 INFO L78 Accepts]: Start accepts. Automaton has 24296 states and 97385 transitions. Word has length 117 [2022-01-18 13:31:15,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:31:15,340 INFO L470 AbstractCegarLoop]: Abstraction has 24296 states and 97385 transitions. [2022-01-18 13:31:15,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:15,340 INFO L276 IsEmpty]: Start isEmpty. Operand 24296 states and 97385 transitions. [2022-01-18 13:31:15,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:31:15,384 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:31:15,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:31:15,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-01-18 13:31:15,384 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:31:15,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:31:15,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1800435317, now seen corresponding path program 184 times [2022-01-18 13:31:15,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:31:15,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512892920] [2022-01-18 13:31:15,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:31:15,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:31:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:31:15,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:31:15,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:31:15,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512892920] [2022-01-18 13:31:15,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512892920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:31:15,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:31:15,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:31:15,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744550785] [2022-01-18 13:31:15,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:31:15,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:31:15,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:31:15,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:31:15,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:31:15,859 INFO L87 Difference]: Start difference. First operand 24296 states and 97385 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:17,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:31:17,492 INFO L93 Difference]: Finished difference Result 57544 states and 226364 transitions. [2022-01-18 13:31:17,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:31:17,492 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:31:17,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:31:17,673 INFO L225 Difference]: With dead ends: 57544 [2022-01-18 13:31:17,673 INFO L226 Difference]: Without dead ends: 56962 [2022-01-18 13:31:17,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:31:17,673 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 786 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 13:31:17,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [786 Valid, 2777 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 13:31:17,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56962 states. [2022-01-18 13:31:18,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56962 to 24332. [2022-01-18 13:31:18,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24332 states, 24331 states have (on average 4.007069171016399) internal successors, (97496), 24331 states have internal predecessors, (97496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:18,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24332 states to 24332 states and 97496 transitions. [2022-01-18 13:31:18,618 INFO L78 Accepts]: Start accepts. Automaton has 24332 states and 97496 transitions. Word has length 117 [2022-01-18 13:31:18,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:31:18,618 INFO L470 AbstractCegarLoop]: Abstraction has 24332 states and 97496 transitions. [2022-01-18 13:31:18,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:18,618 INFO L276 IsEmpty]: Start isEmpty. Operand 24332 states and 97496 transitions. [2022-01-18 13:31:18,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:31:18,662 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:31:18,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:31:18,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-01-18 13:31:18,663 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:31:18,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:31:18,663 INFO L85 PathProgramCache]: Analyzing trace with hash -2004663221, now seen corresponding path program 185 times [2022-01-18 13:31:18,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:31:18,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806432372] [2022-01-18 13:31:18,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:31:18,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:31:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:31:19,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:31:19,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:31:19,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806432372] [2022-01-18 13:31:19,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806432372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:31:19,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:31:19,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:31:19,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044064129] [2022-01-18 13:31:19,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:31:19,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:31:19,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:31:19,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:31:19,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:31:19,224 INFO L87 Difference]: Start difference. First operand 24332 states and 97496 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:20,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:31:20,945 INFO L93 Difference]: Finished difference Result 56959 states and 224396 transitions. [2022-01-18 13:31:20,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:31:20,945 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:31:20,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:31:21,151 INFO L225 Difference]: With dead ends: 56959 [2022-01-18 13:31:21,151 INFO L226 Difference]: Without dead ends: 56260 [2022-01-18 13:31:21,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:31:21,151 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 692 mSDsluCounter, 2985 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:31:21,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [692 Valid, 2834 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:31:21,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56260 states. [2022-01-18 13:31:21,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56260 to 24188. [2022-01-18 13:31:21,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24188 states, 24187 states have (on average 4.00810352668789) internal successors, (96944), 24187 states have internal predecessors, (96944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:21,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24188 states to 24188 states and 96944 transitions. [2022-01-18 13:31:21,884 INFO L78 Accepts]: Start accepts. Automaton has 24188 states and 96944 transitions. Word has length 117 [2022-01-18 13:31:21,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:31:21,884 INFO L470 AbstractCegarLoop]: Abstraction has 24188 states and 96944 transitions. [2022-01-18 13:31:21,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:21,884 INFO L276 IsEmpty]: Start isEmpty. Operand 24188 states and 96944 transitions. [2022-01-18 13:31:21,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:31:21,928 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:31:21,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:31:21,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-01-18 13:31:21,929 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:31:21,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:31:21,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1950986481, now seen corresponding path program 186 times [2022-01-18 13:31:21,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:31:21,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385267263] [2022-01-18 13:31:21,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:31:21,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:31:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:31:22,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:31:22,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:31:22,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385267263] [2022-01-18 13:31:22,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385267263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:31:22,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:31:22,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:31:22,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859710430] [2022-01-18 13:31:22,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:31:22,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:31:22,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:31:22,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:31:22,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:31:22,704 INFO L87 Difference]: Start difference. First operand 24188 states and 96944 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:24,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:31:24,029 INFO L93 Difference]: Finished difference Result 56995 states and 224543 transitions. [2022-01-18 13:31:24,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:31:24,030 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:31:24,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:31:24,206 INFO L225 Difference]: With dead ends: 56995 [2022-01-18 13:31:24,207 INFO L226 Difference]: Without dead ends: 56413 [2022-01-18 13:31:24,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=221, Invalid=481, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:31:24,207 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 761 mSDsluCounter, 2779 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:31:24,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [761 Valid, 2656 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:31:24,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56413 states. [2022-01-18 13:31:25,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56413 to 24296. [2022-01-18 13:31:25,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24296 states, 24295 states have (on average 4.006956163819716) internal successors, (97349), 24295 states have internal predecessors, (97349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:25,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24296 states to 24296 states and 97349 transitions. [2022-01-18 13:31:25,147 INFO L78 Accepts]: Start accepts. Automaton has 24296 states and 97349 transitions. Word has length 117 [2022-01-18 13:31:25,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:31:25,147 INFO L470 AbstractCegarLoop]: Abstraction has 24296 states and 97349 transitions. [2022-01-18 13:31:25,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:25,147 INFO L276 IsEmpty]: Start isEmpty. Operand 24296 states and 97349 transitions. [2022-01-18 13:31:25,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:31:25,191 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:31:25,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:31:25,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-01-18 13:31:25,191 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:31:25,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:31:25,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1854112057, now seen corresponding path program 187 times [2022-01-18 13:31:25,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:31:25,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142586223] [2022-01-18 13:31:25,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:31:25,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:31:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:31:25,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:31:25,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:31:25,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142586223] [2022-01-18 13:31:25,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142586223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:31:25,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:31:25,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:31:25,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828562498] [2022-01-18 13:31:25,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:31:25,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:31:25,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:31:25,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:31:25,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:31:25,723 INFO L87 Difference]: Start difference. First operand 24296 states and 97349 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:27,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:31:27,322 INFO L93 Difference]: Finished difference Result 56968 states and 224417 transitions. [2022-01-18 13:31:27,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:31:27,323 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:31:27,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:31:27,508 INFO L225 Difference]: With dead ends: 56968 [2022-01-18 13:31:27,509 INFO L226 Difference]: Without dead ends: 56377 [2022-01-18 13:31:27,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=221, Invalid=481, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:31:27,509 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 693 mSDsluCounter, 2895 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 2754 SdHoareTripleChecker+Invalid, 1247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:31:27,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [693 Valid, 2754 Invalid, 1247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:31:27,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56377 states. [2022-01-18 13:31:28,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56377 to 24260. [2022-01-18 13:31:28,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24260 states, 24259 states have (on average 4.006842821220991) internal successors, (97202), 24259 states have internal predecessors, (97202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:28,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24260 states to 24260 states and 97202 transitions. [2022-01-18 13:31:28,450 INFO L78 Accepts]: Start accepts. Automaton has 24260 states and 97202 transitions. Word has length 117 [2022-01-18 13:31:28,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:31:28,450 INFO L470 AbstractCegarLoop]: Abstraction has 24260 states and 97202 transitions. [2022-01-18 13:31:28,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:28,450 INFO L276 IsEmpty]: Start isEmpty. Operand 24260 states and 97202 transitions. [2022-01-18 13:31:28,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:31:28,497 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:31:28,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:31:28,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-01-18 13:31:28,497 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:31:28,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:31:28,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1528901113, now seen corresponding path program 188 times [2022-01-18 13:31:28,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:31:28,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72111137] [2022-01-18 13:31:28,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:31:28,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:31:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:31:29,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:31:29,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:31:29,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72111137] [2022-01-18 13:31:29,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72111137] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:31:29,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:31:29,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:31:29,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420947120] [2022-01-18 13:31:29,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:31:29,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:31:29,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:31:29,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:31:29,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:31:29,050 INFO L87 Difference]: Start difference. First operand 24260 states and 97202 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:30,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:31:30,433 INFO L93 Difference]: Finished difference Result 56374 states and 222428 transitions. [2022-01-18 13:31:30,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:31:30,433 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:31:30,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:31:30,612 INFO L225 Difference]: With dead ends: 56374 [2022-01-18 13:31:30,612 INFO L226 Difference]: Without dead ends: 55243 [2022-01-18 13:31:30,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=223, Invalid=479, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:31:30,612 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 591 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 1167 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 2673 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:31:30,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [591 Valid, 2673 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1167 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:31:30,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55243 states. [2022-01-18 13:31:31,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55243 to 23900. [2022-01-18 13:31:31,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23900 states, 23899 states have (on average 4.009205406083937) internal successors, (95816), 23899 states have internal predecessors, (95816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:31,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23900 states to 23900 states and 95816 transitions. [2022-01-18 13:31:31,527 INFO L78 Accepts]: Start accepts. Automaton has 23900 states and 95816 transitions. Word has length 117 [2022-01-18 13:31:31,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:31:31,527 INFO L470 AbstractCegarLoop]: Abstraction has 23900 states and 95816 transitions. [2022-01-18 13:31:31,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:31,528 INFO L276 IsEmpty]: Start isEmpty. Operand 23900 states and 95816 transitions. [2022-01-18 13:31:31,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:31:31,571 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:31:31,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:31:31,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-01-18 13:31:31,571 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:31:31,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:31:31,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1533824855, now seen corresponding path program 189 times [2022-01-18 13:31:31,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:31:31,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560923666] [2022-01-18 13:31:31,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:31:31,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:31:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:31:32,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:31:32,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:31:32,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560923666] [2022-01-18 13:31:32,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560923666] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:31:32,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:31:32,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:31:32,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628839847] [2022-01-18 13:31:32,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:31:32,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:31:32,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:31:32,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:31:32,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:31:32,124 INFO L87 Difference]: Start difference. First operand 23900 states and 95816 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:33,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:31:33,865 INFO L93 Difference]: Finished difference Result 57652 states and 226904 transitions. [2022-01-18 13:31:33,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 13:31:33,865 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:31:33,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:31:34,047 INFO L225 Difference]: With dead ends: 57652 [2022-01-18 13:31:34,047 INFO L226 Difference]: Without dead ends: 57070 [2022-01-18 13:31:34,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=277, Invalid=593, Unknown=0, NotChecked=0, Total=870 [2022-01-18 13:31:34,047 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 734 mSDsluCounter, 2967 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 2866 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 13:31:34,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [734 Valid, 2866 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 13:31:34,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57070 states. [2022-01-18 13:31:34,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57070 to 23981. [2022-01-18 13:31:34,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23981 states, 23980 states have (on average 4.007923269391159) internal successors, (96110), 23980 states have internal predecessors, (96110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:34,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23981 states to 23981 states and 96110 transitions. [2022-01-18 13:31:34,981 INFO L78 Accepts]: Start accepts. Automaton has 23981 states and 96110 transitions. Word has length 117 [2022-01-18 13:31:34,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:31:34,982 INFO L470 AbstractCegarLoop]: Abstraction has 23981 states and 96110 transitions. [2022-01-18 13:31:34,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:34,982 INFO L276 IsEmpty]: Start isEmpty. Operand 23981 states and 96110 transitions. [2022-01-18 13:31:35,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:31:35,025 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:31:35,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:31:35,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-01-18 13:31:35,026 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:31:35,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:31:35,026 INFO L85 PathProgramCache]: Analyzing trace with hash 819506587, now seen corresponding path program 190 times [2022-01-18 13:31:35,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:31:35,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863963622] [2022-01-18 13:31:35,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:31:35,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:31:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:31:35,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:31:35,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:31:35,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863963622] [2022-01-18 13:31:35,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863963622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:31:35,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:31:35,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:31:35,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856742029] [2022-01-18 13:31:35,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:31:35,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:31:35,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:31:35,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:31:35,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:31:35,576 INFO L87 Difference]: Start difference. First operand 23981 states and 96110 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:37,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:31:37,140 INFO L93 Difference]: Finished difference Result 57256 states and 225398 transitions. [2022-01-18 13:31:37,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:31:37,140 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:31:37,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:31:37,607 INFO L225 Difference]: With dead ends: 57256 [2022-01-18 13:31:37,607 INFO L226 Difference]: Without dead ends: 56620 [2022-01-18 13:31:37,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=257, Invalid=555, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:31:37,608 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 763 mSDsluCounter, 2816 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 2719 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:31:37,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [763 Valid, 2719 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:31:37,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56620 states. [2022-01-18 13:31:38,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56620 to 23936. [2022-01-18 13:31:38,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23936 states, 23935 states have (on average 4.00931689993733) internal successors, (95963), 23935 states have internal predecessors, (95963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:38,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23936 states to 23936 states and 95963 transitions. [2022-01-18 13:31:38,323 INFO L78 Accepts]: Start accepts. Automaton has 23936 states and 95963 transitions. Word has length 117 [2022-01-18 13:31:38,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:31:38,323 INFO L470 AbstractCegarLoop]: Abstraction has 23936 states and 95963 transitions. [2022-01-18 13:31:38,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:38,323 INFO L276 IsEmpty]: Start isEmpty. Operand 23936 states and 95963 transitions. [2022-01-18 13:31:38,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:31:38,366 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:31:38,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:31:38,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-01-18 13:31:38,366 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:31:38,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:31:38,367 INFO L85 PathProgramCache]: Analyzing trace with hash -756536969, now seen corresponding path program 191 times [2022-01-18 13:31:38,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:31:38,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870481030] [2022-01-18 13:31:38,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:31:38,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:31:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:31:39,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:31:39,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:31:39,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870481030] [2022-01-18 13:31:39,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870481030] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:31:39,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:31:39,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:31:39,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132959126] [2022-01-18 13:31:39,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:31:39,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:31:39,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:31:39,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:31:39,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:31:39,067 INFO L87 Difference]: Start difference. First operand 23936 states and 95963 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:40,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:31:40,518 INFO L93 Difference]: Finished difference Result 57796 states and 227216 transitions. [2022-01-18 13:31:40,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:31:40,519 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:31:40,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:31:40,699 INFO L225 Difference]: With dead ends: 57796 [2022-01-18 13:31:40,700 INFO L226 Difference]: Without dead ends: 57214 [2022-01-18 13:31:40,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=237, Invalid=519, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:31:40,700 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 820 mSDsluCounter, 2900 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 2775 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:31:40,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [820 Valid, 2775 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:31:40,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57214 states. [2022-01-18 13:31:41,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57214 to 23972. [2022-01-18 13:31:41,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23972 states, 23971 states have (on average 4.007926244211756) internal successors, (96074), 23971 states have internal predecessors, (96074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:41,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23972 states to 23972 states and 96074 transitions. [2022-01-18 13:31:41,583 INFO L78 Accepts]: Start accepts. Automaton has 23972 states and 96074 transitions. Word has length 117 [2022-01-18 13:31:41,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:31:41,583 INFO L470 AbstractCegarLoop]: Abstraction has 23972 states and 96074 transitions. [2022-01-18 13:31:41,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:41,583 INFO L276 IsEmpty]: Start isEmpty. Operand 23972 states and 96074 transitions. [2022-01-18 13:31:41,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:31:41,627 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:31:41,627 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:31:41,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-01-18 13:31:41,628 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:31:41,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:31:41,628 INFO L85 PathProgramCache]: Analyzing trace with hash 760803149, now seen corresponding path program 192 times [2022-01-18 13:31:41,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:31:41,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541697588] [2022-01-18 13:31:41,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:31:41,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:31:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:31:42,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:31:42,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:31:42,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541697588] [2022-01-18 13:31:42,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541697588] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:31:42,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:31:42,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:31:42,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105838752] [2022-01-18 13:31:42,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:31:42,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:31:42,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:31:42,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:31:42,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:31:42,202 INFO L87 Difference]: Start difference. First operand 23972 states and 96074 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:43,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:31:43,911 INFO L93 Difference]: Finished difference Result 57319 states and 225653 transitions. [2022-01-18 13:31:43,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:31:43,912 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:31:43,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:31:44,102 INFO L225 Difference]: With dead ends: 57319 [2022-01-18 13:31:44,102 INFO L226 Difference]: Without dead ends: 56728 [2022-01-18 13:31:44,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=236, Invalid=520, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:31:44,102 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 691 mSDsluCounter, 2880 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 2753 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:31:44,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [691 Valid, 2753 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:31:44,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56728 states. [2022-01-18 13:31:44,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56728 to 23936. [2022-01-18 13:31:44,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23936 states, 23935 states have (on average 4.008815542093169) internal successors, (95951), 23935 states have internal predecessors, (95951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:45,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23936 states to 23936 states and 95951 transitions. [2022-01-18 13:31:45,102 INFO L78 Accepts]: Start accepts. Automaton has 23936 states and 95951 transitions. Word has length 117 [2022-01-18 13:31:45,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:31:45,102 INFO L470 AbstractCegarLoop]: Abstraction has 23936 states and 95951 transitions. [2022-01-18 13:31:45,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:45,102 INFO L276 IsEmpty]: Start isEmpty. Operand 23936 states and 95951 transitions. [2022-01-18 13:31:45,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:31:45,154 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:31:45,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:31:45,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-01-18 13:31:45,154 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:31:45,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:31:45,155 INFO L85 PathProgramCache]: Analyzing trace with hash 857928699, now seen corresponding path program 193 times [2022-01-18 13:31:45,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:31:45,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955291973] [2022-01-18 13:31:45,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:31:45,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:31:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:31:45,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:31:45,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:31:45,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955291973] [2022-01-18 13:31:45,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955291973] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:31:45,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:31:45,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:31:45,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976635244] [2022-01-18 13:31:45,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:31:45,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:31:45,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:31:45,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:31:45,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:31:45,705 INFO L87 Difference]: Start difference. First operand 23936 states and 95951 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:47,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:31:47,262 INFO L93 Difference]: Finished difference Result 57805 states and 227228 transitions. [2022-01-18 13:31:47,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:31:47,263 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:31:47,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:31:47,441 INFO L225 Difference]: With dead ends: 57805 [2022-01-18 13:31:47,442 INFO L226 Difference]: Without dead ends: 57214 [2022-01-18 13:31:47,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=237, Invalid=519, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:31:47,442 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 829 mSDsluCounter, 3080 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 2926 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:31:47,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [829 Valid, 2926 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:31:47,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57214 states. [2022-01-18 13:31:48,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57214 to 23972. [2022-01-18 13:31:48,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23972 states, 23971 states have (on average 4.007425639314171) internal successors, (96062), 23971 states have internal predecessors, (96062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:48,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23972 states to 23972 states and 96062 transitions. [2022-01-18 13:31:48,317 INFO L78 Accepts]: Start accepts. Automaton has 23972 states and 96062 transitions. Word has length 117 [2022-01-18 13:31:48,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:31:48,317 INFO L470 AbstractCegarLoop]: Abstraction has 23972 states and 96062 transitions. [2022-01-18 13:31:48,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:48,317 INFO L276 IsEmpty]: Start isEmpty. Operand 23972 states and 96062 transitions. [2022-01-18 13:31:48,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:31:48,359 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:31:48,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:31:48,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-01-18 13:31:48,359 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:31:48,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:31:48,360 INFO L85 PathProgramCache]: Analyzing trace with hash 229856731, now seen corresponding path program 194 times [2022-01-18 13:31:48,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:31:48,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194218461] [2022-01-18 13:31:48,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:31:48,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:31:48,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:31:48,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:31:48,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:31:48,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194218461] [2022-01-18 13:31:48,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194218461] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:31:48,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:31:48,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:31:48,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922153653] [2022-01-18 13:31:48,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:31:48,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:31:48,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:31:48,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:31:48,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:31:48,922 INFO L87 Difference]: Start difference. First operand 23972 states and 96062 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:50,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:31:50,609 INFO L93 Difference]: Finished difference Result 57319 states and 225641 transitions. [2022-01-18 13:31:50,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:31:50,610 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:31:50,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:31:50,791 INFO L225 Difference]: With dead ends: 57319 [2022-01-18 13:31:50,791 INFO L226 Difference]: Without dead ends: 56716 [2022-01-18 13:31:50,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=236, Invalid=520, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:31:50,791 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 678 mSDsluCounter, 3257 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 3071 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:31:50,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [678 Valid, 3071 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:31:50,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56716 states. [2022-01-18 13:31:51,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56716 to 23924. [2022-01-18 13:31:51,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23924 states, 23923 states have (on average 4.009112569493793) internal successors, (95910), 23923 states have internal predecessors, (95910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:51,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23924 states to 23924 states and 95910 transitions. [2022-01-18 13:31:51,725 INFO L78 Accepts]: Start accepts. Automaton has 23924 states and 95910 transitions. Word has length 117 [2022-01-18 13:31:51,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:31:51,725 INFO L470 AbstractCegarLoop]: Abstraction has 23924 states and 95910 transitions. [2022-01-18 13:31:51,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:51,726 INFO L276 IsEmpty]: Start isEmpty. Operand 23924 states and 95910 transitions. [2022-01-18 13:31:51,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:31:51,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:31:51,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:31:51,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-01-18 13:31:51,769 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:31:51,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:31:51,770 INFO L85 PathProgramCache]: Analyzing trace with hash 40339957, now seen corresponding path program 195 times [2022-01-18 13:31:51,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:31:51,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044242451] [2022-01-18 13:31:51,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:31:51,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:31:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:31:52,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:31:52,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:31:52,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044242451] [2022-01-18 13:31:52,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044242451] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:31:52,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:31:52,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:31:52,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033763129] [2022-01-18 13:31:52,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:31:52,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:31:52,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:31:52,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:31:52,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:31:52,240 INFO L87 Difference]: Start difference. First operand 23924 states and 95910 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:54,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:31:54,336 INFO L93 Difference]: Finished difference Result 58108 states and 228549 transitions. [2022-01-18 13:31:54,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 13:31:54,336 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:31:54,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:31:54,553 INFO L225 Difference]: With dead ends: 58108 [2022-01-18 13:31:54,553 INFO L226 Difference]: Without dead ends: 57526 [2022-01-18 13:31:54,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=279, Invalid=591, Unknown=0, NotChecked=0, Total=870 [2022-01-18 13:31:54,553 INFO L933 BasicCegarLoop]: 360 mSDtfsCounter, 621 mSDsluCounter, 3673 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:31:54,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [621 Valid, 3453 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:31:54,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57526 states. [2022-01-18 13:31:55,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57526 to 24032. [2022-01-18 13:31:55,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24032 states, 24031 states have (on average 4.007948067080021) internal successors, (96315), 24031 states have internal predecessors, (96315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:55,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24032 states to 24032 states and 96315 transitions. [2022-01-18 13:31:55,290 INFO L78 Accepts]: Start accepts. Automaton has 24032 states and 96315 transitions. Word has length 117 [2022-01-18 13:31:55,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:31:55,290 INFO L470 AbstractCegarLoop]: Abstraction has 24032 states and 96315 transitions. [2022-01-18 13:31:55,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:55,290 INFO L276 IsEmpty]: Start isEmpty. Operand 24032 states and 96315 transitions. [2022-01-18 13:31:55,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:31:55,337 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:31:55,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:31:55,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-01-18 13:31:55,337 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:31:55,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:31:55,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1557680075, now seen corresponding path program 196 times [2022-01-18 13:31:55,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:31:55,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638649451] [2022-01-18 13:31:55,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:31:55,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:31:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:31:56,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:31:56,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:31:56,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638649451] [2022-01-18 13:31:56,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638649451] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:31:56,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:31:56,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:31:56,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022837505] [2022-01-18 13:31:56,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:31:56,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:31:56,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:31:56,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:31:56,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:31:56,125 INFO L87 Difference]: Start difference. First operand 24032 states and 96315 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:57,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:31:57,549 INFO L93 Difference]: Finished difference Result 57676 states and 226938 transitions. [2022-01-18 13:31:57,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:31:57,549 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:31:57,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:31:57,731 INFO L225 Difference]: With dead ends: 57676 [2022-01-18 13:31:57,732 INFO L226 Difference]: Without dead ends: 57085 [2022-01-18 13:31:57,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=260, Invalid=552, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:31:57,732 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 723 mSDsluCounter, 2889 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:31:57,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [723 Valid, 2782 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:31:57,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57085 states. [2022-01-18 13:31:58,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57085 to 23996. [2022-01-18 13:31:58,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23996 states, 23995 states have (on average 4.007834965617837) internal successors, (96168), 23995 states have internal predecessors, (96168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:58,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23996 states to 23996 states and 96168 transitions. [2022-01-18 13:31:58,687 INFO L78 Accepts]: Start accepts. Automaton has 23996 states and 96168 transitions. Word has length 117 [2022-01-18 13:31:58,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:31:58,687 INFO L470 AbstractCegarLoop]: Abstraction has 23996 states and 96168 transitions. [2022-01-18 13:31:58,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:31:58,687 INFO L276 IsEmpty]: Start isEmpty. Operand 23996 states and 96168 transitions. [2022-01-18 13:31:58,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:31:58,732 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:31:58,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:31:58,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-01-18 13:31:58,732 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:31:58,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:31:58,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1618200731, now seen corresponding path program 197 times [2022-01-18 13:31:58,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:31:58,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951059746] [2022-01-18 13:31:58,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:31:58,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:31:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:31:59,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:31:59,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:31:59,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951059746] [2022-01-18 13:31:59,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951059746] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:31:59,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:31:59,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:31:59,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531351579] [2022-01-18 13:31:59,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:31:59,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:31:59,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:31:59,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:31:59,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:31:59,280 INFO L87 Difference]: Start difference. First operand 23996 states and 96168 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:01,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:32:01,057 INFO L93 Difference]: Finished difference Result 57298 states and 225759 transitions. [2022-01-18 13:32:01,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:32:01,057 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:32:01,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:32:01,243 INFO L225 Difference]: With dead ends: 57298 [2022-01-18 13:32:01,243 INFO L226 Difference]: Without dead ends: 56455 [2022-01-18 13:32:01,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=261, Invalid=551, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:32:01,243 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 578 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 2946 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:32:01,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [578 Valid, 2946 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:32:01,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56455 states. [2022-01-18 13:32:01,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56455 to 23924. [2022-01-18 13:32:01,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23924 states, 23923 states have (on average 4.008109350833926) internal successors, (95886), 23923 states have internal predecessors, (95886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:02,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23924 states to 23924 states and 95886 transitions. [2022-01-18 13:32:02,252 INFO L78 Accepts]: Start accepts. Automaton has 23924 states and 95886 transitions. Word has length 117 [2022-01-18 13:32:02,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:32:02,252 INFO L470 AbstractCegarLoop]: Abstraction has 23924 states and 95886 transitions. [2022-01-18 13:32:02,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:02,252 INFO L276 IsEmpty]: Start isEmpty. Operand 23924 states and 95886 transitions. [2022-01-18 13:32:02,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:32:02,298 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:32:02,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:32:02,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-01-18 13:32:02,298 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:32:02,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:32:02,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1499291767, now seen corresponding path program 198 times [2022-01-18 13:32:02,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:32:02,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958211630] [2022-01-18 13:32:02,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:32:02,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:32:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:32:02,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:32:02,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:32:02,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958211630] [2022-01-18 13:32:02,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958211630] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:32:02,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:32:02,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:32:02,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846117523] [2022-01-18 13:32:02,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:32:02,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:32:02,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:32:02,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:32:02,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:32:02,815 INFO L87 Difference]: Start difference. First operand 23924 states and 95886 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:04,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:32:04,389 INFO L93 Difference]: Finished difference Result 56362 states and 222282 transitions. [2022-01-18 13:32:04,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:32:04,389 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:32:04,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:32:04,566 INFO L225 Difference]: With dead ends: 56362 [2022-01-18 13:32:04,566 INFO L226 Difference]: Without dead ends: 55771 [2022-01-18 13:32:04,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:32:04,566 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 654 mSDsluCounter, 2908 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 2778 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:32:04,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [654 Valid, 2778 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:32:04,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55771 states. [2022-01-18 13:32:05,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55771 to 24032. [2022-01-18 13:32:05,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24032 states, 24031 states have (on average 4.006949357080438) internal successors, (96291), 24031 states have internal predecessors, (96291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:05,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24032 states to 24032 states and 96291 transitions. [2022-01-18 13:32:05,484 INFO L78 Accepts]: Start accepts. Automaton has 24032 states and 96291 transitions. Word has length 117 [2022-01-18 13:32:05,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:32:05,484 INFO L470 AbstractCegarLoop]: Abstraction has 24032 states and 96291 transitions. [2022-01-18 13:32:05,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:05,484 INFO L276 IsEmpty]: Start isEmpty. Operand 24032 states and 96291 transitions. [2022-01-18 13:32:05,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:32:05,529 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:32:05,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:32:05,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-01-18 13:32:05,529 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:32:05,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:32:05,529 INFO L85 PathProgramCache]: Analyzing trace with hash -2127363735, now seen corresponding path program 199 times [2022-01-18 13:32:05,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:32:05,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552879192] [2022-01-18 13:32:05,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:32:05,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:32:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:32:06,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:32:06,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:32:06,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552879192] [2022-01-18 13:32:06,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552879192] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:32:06,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:32:06,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:32:06,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309213393] [2022-01-18 13:32:06,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:32:06,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:32:06,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:32:06,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:32:06,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:32:06,067 INFO L87 Difference]: Start difference. First operand 24032 states and 96291 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:07,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:32:07,794 INFO L93 Difference]: Finished difference Result 56326 states and 222132 transitions. [2022-01-18 13:32:07,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:32:07,794 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:32:07,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:32:07,972 INFO L225 Difference]: With dead ends: 56326 [2022-01-18 13:32:07,972 INFO L226 Difference]: Without dead ends: 55735 [2022-01-18 13:32:07,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:32:07,972 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 577 mSDsluCounter, 3134 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 2965 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 13:32:07,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [577 Valid, 2965 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 13:32:08,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55735 states. [2022-01-18 13:32:08,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55735 to 23996. [2022-01-18 13:32:08,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23996 states, 23995 states have (on average 4.006834757241092) internal successors, (96144), 23995 states have internal predecessors, (96144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:08,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23996 states to 23996 states and 96144 transitions. [2022-01-18 13:32:08,895 INFO L78 Accepts]: Start accepts. Automaton has 23996 states and 96144 transitions. Word has length 117 [2022-01-18 13:32:08,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:32:08,895 INFO L470 AbstractCegarLoop]: Abstraction has 23996 states and 96144 transitions. [2022-01-18 13:32:08,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:08,895 INFO L276 IsEmpty]: Start isEmpty. Operand 23996 states and 96144 transitions. [2022-01-18 13:32:08,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:32:08,939 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:32:08,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:32:08,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-01-18 13:32:08,939 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:32:08,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:32:08,940 INFO L85 PathProgramCache]: Analyzing trace with hash 807835947, now seen corresponding path program 200 times [2022-01-18 13:32:08,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:32:08,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462000328] [2022-01-18 13:32:08,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:32:08,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:32:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:32:09,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:32:09,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:32:09,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462000328] [2022-01-18 13:32:09,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462000328] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:32:09,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:32:09,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:32:09,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429492173] [2022-01-18 13:32:09,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:32:09,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:32:09,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:32:09,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:32:09,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:32:09,496 INFO L87 Difference]: Start difference. First operand 23996 states and 96144 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:11,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:32:11,347 INFO L93 Difference]: Finished difference Result 55732 states and 220143 transitions. [2022-01-18 13:32:11,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:32:11,348 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:32:11,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:32:11,546 INFO L225 Difference]: With dead ends: 55732 [2022-01-18 13:32:11,546 INFO L226 Difference]: Without dead ends: 54721 [2022-01-18 13:32:11,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=239, Invalid=517, Unknown=0, NotChecked=0, Total=756 [2022-01-18 13:32:11,546 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 493 mSDsluCounter, 3236 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:32:11,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [493 Valid, 3054 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:32:11,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54721 states. [2022-01-18 13:32:12,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54721 to 23756. [2022-01-18 13:32:12,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23756 states, 23755 states have (on average 4.015154704272785) internal successors, (95380), 23755 states have internal predecessors, (95380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:12,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23756 states to 23756 states and 95380 transitions. [2022-01-18 13:32:12,252 INFO L78 Accepts]: Start accepts. Automaton has 23756 states and 95380 transitions. Word has length 117 [2022-01-18 13:32:12,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:32:12,252 INFO L470 AbstractCegarLoop]: Abstraction has 23756 states and 95380 transitions. [2022-01-18 13:32:12,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:12,252 INFO L276 IsEmpty]: Start isEmpty. Operand 23756 states and 95380 transitions. [2022-01-18 13:32:12,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:32:12,298 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:32:12,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:32:12,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-01-18 13:32:12,298 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:32:12,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:32:12,298 INFO L85 PathProgramCache]: Analyzing trace with hash 209567201, now seen corresponding path program 201 times [2022-01-18 13:32:12,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:32:12,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15715443] [2022-01-18 13:32:12,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:32:12,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:32:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:32:13,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:32:13,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:32:13,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15715443] [2022-01-18 13:32:13,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15715443] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:32:13,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:32:13,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:32:13,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358019390] [2022-01-18 13:32:13,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:32:13,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:32:13,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:32:13,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:32:13,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:32:13,043 INFO L87 Difference]: Start difference. First operand 23756 states and 95380 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:14,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:32:14,686 INFO L93 Difference]: Finished difference Result 59718 states and 234923 transitions. [2022-01-18 13:32:14,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:32:14,686 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:32:14,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:32:14,874 INFO L225 Difference]: With dead ends: 59718 [2022-01-18 13:32:14,874 INFO L226 Difference]: Without dead ends: 59124 [2022-01-18 13:32:14,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=213, Invalid=489, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:32:14,874 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 779 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 1417 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:32:14,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [779 Valid, 3079 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1417 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:32:14,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59124 states. [2022-01-18 13:32:15,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59124 to 24025. [2022-01-18 13:32:15,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24025 states, 24024 states have (on average 4.01494338994339) internal successors, (96455), 24024 states have internal predecessors, (96455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:15,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24025 states to 24025 states and 96455 transitions. [2022-01-18 13:32:15,839 INFO L78 Accepts]: Start accepts. Automaton has 24025 states and 96455 transitions. Word has length 117 [2022-01-18 13:32:15,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:32:15,839 INFO L470 AbstractCegarLoop]: Abstraction has 24025 states and 96455 transitions. [2022-01-18 13:32:15,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:15,840 INFO L276 IsEmpty]: Start isEmpty. Operand 24025 states and 96455 transitions. [2022-01-18 13:32:15,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:32:15,883 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:32:15,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:32:15,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-01-18 13:32:15,884 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:32:15,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:32:15,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1542434817, now seen corresponding path program 202 times [2022-01-18 13:32:15,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:32:15,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581055348] [2022-01-18 13:32:15,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:32:15,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:32:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:32:16,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:32:16,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:32:16,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581055348] [2022-01-18 13:32:16,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581055348] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:32:16,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:32:16,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:32:16,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282111124] [2022-01-18 13:32:16,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:32:16,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:32:16,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:32:16,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:32:16,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:32:16,448 INFO L87 Difference]: Start difference. First operand 24025 states and 96455 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:18,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:32:18,228 INFO L93 Difference]: Finished difference Result 59706 states and 234848 transitions. [2022-01-18 13:32:18,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:32:18,228 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:32:18,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:32:18,422 INFO L225 Difference]: With dead ends: 59706 [2022-01-18 13:32:18,422 INFO L226 Difference]: Without dead ends: 59079 [2022-01-18 13:32:18,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=213, Invalid=489, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:32:18,422 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 763 mSDsluCounter, 3170 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 2997 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:32:18,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [763 Valid, 2997 Invalid, 1410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:32:18,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59079 states. [2022-01-18 13:32:19,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59079 to 23980. [2022-01-18 13:32:19,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23980 states, 23979 states have (on average 4.014971433337504) internal successors, (96275), 23979 states have internal predecessors, (96275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:19,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23980 states to 23980 states and 96275 transitions. [2022-01-18 13:32:19,415 INFO L78 Accepts]: Start accepts. Automaton has 23980 states and 96275 transitions. Word has length 117 [2022-01-18 13:32:19,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:32:19,415 INFO L470 AbstractCegarLoop]: Abstraction has 23980 states and 96275 transitions. [2022-01-18 13:32:19,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:19,416 INFO L276 IsEmpty]: Start isEmpty. Operand 23980 states and 96275 transitions. [2022-01-18 13:32:19,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:32:19,459 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:32:19,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:32:19,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-01-18 13:32:19,459 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:32:19,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:32:19,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1957218047, now seen corresponding path program 203 times [2022-01-18 13:32:19,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:32:19,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241872783] [2022-01-18 13:32:19,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:32:19,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:32:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:32:20,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:32:20,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:32:20,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241872783] [2022-01-18 13:32:20,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241872783] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:32:20,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:32:20,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:32:20,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832315116] [2022-01-18 13:32:20,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:32:20,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:32:20,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:32:20,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:32:20,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:32:20,042 INFO L87 Difference]: Start difference. First operand 23980 states and 96275 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:22,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:32:22,020 INFO L93 Difference]: Finished difference Result 60066 states and 236153 transitions. [2022-01-18 13:32:22,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:32:22,020 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:32:22,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:32:22,236 INFO L225 Difference]: With dead ends: 60066 [2022-01-18 13:32:22,236 INFO L226 Difference]: Without dead ends: 58944 [2022-01-18 13:32:22,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=213, Invalid=489, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:32:22,236 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 727 mSDsluCounter, 3305 mSDsCounter, 0 mSdLazyCounter, 1459 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 3109 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 13:32:22,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [727 Valid, 3109 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1459 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 13:32:22,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58944 states. [2022-01-18 13:32:22,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58944 to 23845. [2022-01-18 13:32:22,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23845 states, 23844 states have (on average 4.015056198624392) internal successors, (95735), 23844 states have internal predecessors, (95735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:22,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23845 states to 23845 states and 95735 transitions. [2022-01-18 13:32:22,983 INFO L78 Accepts]: Start accepts. Automaton has 23845 states and 95735 transitions. Word has length 117 [2022-01-18 13:32:22,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:32:22,984 INFO L470 AbstractCegarLoop]: Abstraction has 23845 states and 95735 transitions. [2022-01-18 13:32:22,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:22,984 INFO L276 IsEmpty]: Start isEmpty. Operand 23845 states and 95735 transitions. [2022-01-18 13:32:23,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:32:23,028 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:32:23,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:32:23,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-01-18 13:32:23,028 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:32:23,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:32:23,028 INFO L85 PathProgramCache]: Analyzing trace with hash 45047309, now seen corresponding path program 204 times [2022-01-18 13:32:23,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:32:23,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776882510] [2022-01-18 13:32:23,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:32:23,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:32:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:32:23,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:32:23,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:32:23,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776882510] [2022-01-18 13:32:23,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776882510] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:32:23,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:32:23,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:32:23,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972942369] [2022-01-18 13:32:23,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:32:23,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:32:23,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:32:23,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:32:23,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:32:23,832 INFO L87 Difference]: Start difference. First operand 23845 states and 95735 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:25,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:32:25,390 INFO L93 Difference]: Finished difference Result 60027 states and 235768 transitions. [2022-01-18 13:32:25,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 13:32:25,390 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-18 13:32:25,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:32:25,583 INFO L225 Difference]: With dead ends: 60027 [2022-01-18 13:32:25,583 INFO L226 Difference]: Without dead ends: 59433 [2022-01-18 13:32:25,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=214, Invalid=488, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:32:25,583 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 987 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 2722 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 13:32:25,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [987 Valid, 2722 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 13:32:25,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59433 states. [2022-01-18 13:32:26,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59433 to 23905. [2022-01-18 13:32:26,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23905 states, 23904 states have (on average 4.013345046854083) internal successors, (95935), 23904 states have internal predecessors, (95935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:26,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23905 states to 23905 states and 95935 transitions. [2022-01-18 13:32:26,562 INFO L78 Accepts]: Start accepts. Automaton has 23905 states and 95935 transitions. Word has length 117 [2022-01-18 13:32:26,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:32:26,562 INFO L470 AbstractCegarLoop]: Abstraction has 23905 states and 95935 transitions. [2022-01-18 13:32:26,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:32:26,562 INFO L276 IsEmpty]: Start isEmpty. Operand 23905 states and 95935 transitions. [2022-01-18 13:32:26,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-18 13:32:26,606 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:32:26,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 13:32:26,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-01-18 13:32:26,606 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 13:32:26,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:32:26,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1377914925, now seen corresponding path program 205 times [2022-01-18 13:32:26,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:32:26,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025447469] [2022-01-18 13:32:26,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:32:26,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:32:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:32:27,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:32:27,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:32:27,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025447469] [2022-01-18 13:32:27,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025447469] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:32:27,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:32:27,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 13:32:27,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773202435] [2022-01-18 13:32:27,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:32:27,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 13:32:27,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:32:27,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 13:32:27,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:32:27,156 INFO L87 Difference]: Start difference. First operand 23905 states and 95935 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-01-18 13:32:28,392 WARN L244 SmtUtils]: Removed 8 from assertion stack [2022-01-18 13:32:28,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 13:32:28,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2022-01-18 13:32:28,393 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 242 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2345 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 13:32:28,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 2345 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 13:32:28,393 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-18 13:32:28,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-01-18 13:32:28,394 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (23905states) and FLOYD_HOARE automaton (currently 13 states, 16 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 75 for 36ms.. [2022-01-18 13:32:28,395 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-01-18 13:32:28,395 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-01-18 13:32:28,395 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-01-18 13:32:28,395 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-01-18 13:32:28,397 INFO L732 BasicCegarLoop]: Path program histogram: [205] [2022-01-18 13:32:28,398 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 13:32:28,398 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 13:32:28,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 01:32:28 BasicIcfg [2022-01-18 13:32:28,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 13:32:28,400 INFO L158 Benchmark]: Toolchain (without parser) took 710511.42ms. Allocated memory was 415.2MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 357.3MB in the beginning and 7.3GB in the end (delta: -6.9GB). Peak memory consumption was 8.7GB. Max. memory is 16.0GB. [2022-01-18 13:32:28,400 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 415.2MB. Free memory is still 374.3MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 13:32:28,400 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.65ms. Allocated memory was 415.2MB in the beginning and 526.4MB in the end (delta: 111.1MB). Free memory was 357.1MB in the beginning and 495.9MB in the end (delta: -138.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.0GB. [2022-01-18 13:32:28,400 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.16ms. Allocated memory is still 526.4MB. Free memory was 494.9MB in the beginning and 492.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 13:32:28,400 INFO L158 Benchmark]: Boogie Preprocessor took 15.43ms. Allocated memory is still 526.4MB. Free memory was 492.8MB in the beginning and 491.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 13:32:28,400 INFO L158 Benchmark]: RCFGBuilder took 313.94ms. Allocated memory is still 526.4MB. Free memory was 491.7MB in the beginning and 471.8MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2022-01-18 13:32:28,400 INFO L158 Benchmark]: TraceAbstraction took 709949.33ms. Allocated memory was 526.4MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 470.8MB in the beginning and 7.3GB in the end (delta: -6.8GB). Peak memory consumption was 8.7GB. Max. memory is 16.0GB. [2022-01-18 13:32:28,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 415.2MB. Free memory is still 374.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 196.65ms. Allocated memory was 415.2MB in the beginning and 526.4MB in the end (delta: 111.1MB). Free memory was 357.1MB in the beginning and 495.9MB in the end (delta: -138.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 24.16ms. Allocated memory is still 526.4MB. Free memory was 494.9MB in the beginning and 492.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 15.43ms. Allocated memory is still 526.4MB. Free memory was 492.8MB in the beginning and 491.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 313.94ms. Allocated memory is still 526.4MB. Free memory was 491.7MB in the beginning and 471.8MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 709949.33ms. Allocated memory was 526.4MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 470.8MB in the beginning and 7.3GB in the end (delta: -6.8GB). Peak memory consumption was 8.7GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 153]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (23905states) and FLOYD_HOARE automaton (currently 13 states, 16 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 75 for 36ms.. - TimeoutResultAtElement [Line: 144]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (23905states) and FLOYD_HOARE automaton (currently 13 states, 16 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 75 for 36ms.. - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (23905states) and FLOYD_HOARE automaton (currently 13 states, 16 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 75 for 36ms.. - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (23905states) and FLOYD_HOARE automaton (currently 13 states, 16 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 75 for 36ms.. - TimeoutResultAtElement [Line: 143]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (23905states) and FLOYD_HOARE automaton (currently 13 states, 16 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 75 for 36ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 177 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 709.8s, OverallIterations: 205, TraceHistogramMax: 1, PathProgramHistogramMax: 205, EmptinessCheckTime: 11.5s, AutomataDifference: 381.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 152878 SdHoareTripleChecker+Valid, 133.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 152878 mSDsluCounter, 578545 SdHoareTripleChecker+Invalid, 114.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 608832 mSDsCounter, 7586 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 256310 IncrementalHoareTripleChecker+Invalid, 263896 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7586 mSolverCounterUnsat, 68695 mSDtfsCounter, 256310 mSolverCounterSat, 1.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6141 GetRequests, 942 SyntacticMatches, 0 SemanticMatches, 5198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9816 ImplicationChecksByTransitivity, 165.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33672occurred in iteration=0, InterpolantAutomatonStates: 3362, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 187.1s AutomataMinimizationTime, 204 MinimizatonAttempts, 6744830 StatesRemovedByMinimization, 202 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 6.8s SatisfiabilityAnalysisTime, 120.3s InterpolantComputationTime, 23985 NumberOfCodeBlocks, 23985 NumberOfCodeBlocksAsserted, 205 NumberOfCheckSat, 23780 ConstructedInterpolants, 0 QuantifiedInterpolants, 475815 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 205 InterpolantComputations, 205 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown