/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-hard1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 13:24:05,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 13:24:05,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 13:24:05,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 13:24:05,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 13:24:05,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 13:24:05,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 13:24:05,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 13:24:05,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 13:24:05,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 13:24:05,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 13:24:05,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 13:24:05,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 13:24:05,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 13:24:05,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 13:24:05,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 13:24:05,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 13:24:05,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 13:24:05,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 13:24:05,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 13:24:05,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 13:24:05,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 13:24:05,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 13:24:05,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 13:24:05,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 13:24:05,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 13:24:05,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 13:24:05,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 13:24:05,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 13:24:05,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 13:24:05,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 13:24:05,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 13:24:05,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 13:24:05,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 13:24:05,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 13:24:05,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 13:24:05,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 13:24:05,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 13:24:05,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 13:24:05,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 13:24:05,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 13:24:05,939 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 13:24:05,969 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 13:24:05,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 13:24:05,969 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 13:24:05,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 13:24:05,970 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 13:24:05,970 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 13:24:05,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 13:24:05,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 13:24:05,971 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 13:24:05,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 13:24:05,971 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 13:24:05,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 13:24:05,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 13:24:05,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 13:24:05,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 13:24:05,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 13:24:05,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 13:24:05,972 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 13:24:05,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 13:24:05,972 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 13:24:05,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 13:24:05,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 13:24:05,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 13:24:05,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 13:24:05,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 13:24:05,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 13:24:05,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 13:24:05,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 13:24:05,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 13:24:05,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 13:24:05,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 13:24:05,974 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 13:24:05,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 13:24:05,974 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 13:24:05,974 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 13:24:06,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 13:24:06,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 13:24:06,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 13:24:06,209 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 13:24:06,210 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 13:24:06,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c [2022-01-18 13:24:06,278 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/382432137/998b6cabf4b7476bbf22e8a8171440f8/FLAG7c3a27957 [2022-01-18 13:24:06,647 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 13:24:06,647 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c [2022-01-18 13:24:06,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/382432137/998b6cabf4b7476bbf22e8a8171440f8/FLAG7c3a27957 [2022-01-18 13:24:06,669 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/382432137/998b6cabf4b7476bbf22e8a8171440f8 [2022-01-18 13:24:06,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 13:24:06,672 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 13:24:06,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 13:24:06,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 13:24:06,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 13:24:06,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:24:06" (1/1) ... [2022-01-18 13:24:06,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7450f979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:24:06, skipping insertion in model container [2022-01-18 13:24:06,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:24:06" (1/1) ... [2022-01-18 13:24:06,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 13:24:06,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 13:24:06,910 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-hard1.wvr.c[3373,3386] [2022-01-18 13:24:06,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 13:24:06,918 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 13:24:06,938 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-hard1.wvr.c[3373,3386] [2022-01-18 13:24:06,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 13:24:06,950 INFO L208 MainTranslator]: Completed translation [2022-01-18 13:24:06,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:24:06 WrapperNode [2022-01-18 13:24:06,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 13:24:06,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 13:24:06,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 13:24:06,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 13:24:06,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:24:06" (1/1) ... [2022-01-18 13:24:06,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:24:06" (1/1) ... [2022-01-18 13:24:06,998 INFO L137 Inliner]: procedures = 24, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 93 [2022-01-18 13:24:06,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 13:24:06,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 13:24:06,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 13:24:06,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 13:24:07,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:24:06" (1/1) ... [2022-01-18 13:24:07,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:24:06" (1/1) ... [2022-01-18 13:24:07,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:24:06" (1/1) ... [2022-01-18 13:24:07,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:24:06" (1/1) ... [2022-01-18 13:24:07,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:24:06" (1/1) ... [2022-01-18 13:24:07,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:24:06" (1/1) ... [2022-01-18 13:24:07,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:24:06" (1/1) ... [2022-01-18 13:24:07,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 13:24:07,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 13:24:07,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 13:24:07,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 13:24:07,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:24:06" (1/1) ... [2022-01-18 13:24:07,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 13:24:07,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 13:24:07,058 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 13:24:07,075 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 13:24:07,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 13:24:07,091 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 13:24:07,091 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 13:24:07,091 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 13:24:07,092 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 13:24:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 13:24:07,092 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 13:24:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 13:24:07,092 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 13:24:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 13:24:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 13:24:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 13:24:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 13:24:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 13:24:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 13:24:07,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 13:24:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 13:24:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 13:24:07,094 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 13:24:07,156 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 13:24:07,157 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 13:24:07,339 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 13:24:07,396 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 13:24:07,396 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-18 13:24:07,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:24:07 BoogieIcfgContainer [2022-01-18 13:24:07,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 13:24:07,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 13:24:07,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 13:24:07,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 13:24:07,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 01:24:06" (1/3) ... [2022-01-18 13:24:07,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e19e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:24:07, skipping insertion in model container [2022-01-18 13:24:07,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:24:06" (2/3) ... [2022-01-18 13:24:07,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e19e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:24:07, skipping insertion in model container [2022-01-18 13:24:07,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:24:07" (3/3) ... [2022-01-18 13:24:07,405 INFO L111 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2022-01-18 13:24:07,408 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 13:24:07,408 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 13:24:07,409 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 13:24:07,409 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 13:24:07,469 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,469 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,470 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,470 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,470 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,471 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,471 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,471 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,471 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,471 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,472 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,472 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,472 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,472 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,473 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,473 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,474 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,474 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,474 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,474 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,475 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,475 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,475 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,475 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,475 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,475 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,476 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,477 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,477 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,477 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,478 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,478 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,478 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,478 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,479 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,479 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,479 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,479 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,479 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,480 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,480 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,480 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,481 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,481 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,481 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,482 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,482 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,482 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,483 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,483 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,483 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,483 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,484 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,484 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,485 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,485 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,487 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,488 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,488 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,488 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,489 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,489 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,489 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,489 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,490 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,490 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,491 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,491 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,491 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,492 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 13:24:07,501 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 13:24:07,538 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 13:24:07,543 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 13:24:07,543 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 13:24:07,554 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 138 places, 135 transitions, 302 flow [2022-01-18 13:24:08,155 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 13249 states, 13248 states have (on average 5.013435990338165) internal successors, (66418), 13248 states have internal predecessors, (66418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:08,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 13249 states, 13248 states have (on average 5.013435990338165) internal successors, (66418), 13248 states have internal predecessors, (66418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:08,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 13:24:08,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:08,306 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] [2022-01-18 13:24:08,307 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 13:24:08,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:08,317 INFO L85 PathProgramCache]: Analyzing trace with hash 2058988717, now seen corresponding path program 1 times [2022-01-18 13:24:08,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:08,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900817583] [2022-01-18 13:24:08,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:08,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:08,555 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 13:24:08,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:08,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900817583] [2022-01-18 13:24:08,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900817583] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:08,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:08,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 13:24:08,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425494476] [2022-01-18 13:24:08,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:08,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 13:24:08,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:08,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 13:24:08,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 13:24:08,636 INFO L87 Difference]: Start difference. First operand has 13249 states, 13248 states have (on average 5.013435990338165) internal successors, (66418), 13248 states have internal predecessors, (66418), 0 states have call successors, (0), 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 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:09,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:09,054 INFO L93 Difference]: Finished difference Result 13249 states and 59470 transitions. [2022-01-18 13:24:09,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 13:24:09,056 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-01-18 13:24:09,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:09,302 INFO L225 Difference]: With dead ends: 13249 [2022-01-18 13:24:09,302 INFO L226 Difference]: Without dead ends: 13247 [2022-01-18 13:24:09,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 13:24:09,308 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:09,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 13:24:09,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13247 states. [2022-01-18 13:24:09,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13247 to 13247. [2022-01-18 13:24:09,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13247 states, 13246 states have (on average 4.489506266042579) internal successors, (59468), 13246 states have internal predecessors, (59468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:10,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13247 states to 13247 states and 59468 transitions. [2022-01-18 13:24:10,168 INFO L78 Accepts]: Start accepts. Automaton has 13247 states and 59468 transitions. Word has length 98 [2022-01-18 13:24:10,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:10,169 INFO L470 AbstractCegarLoop]: Abstraction has 13247 states and 59468 transitions. [2022-01-18 13:24:10,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:10,169 INFO L276 IsEmpty]: Start isEmpty. Operand 13247 states and 59468 transitions. [2022-01-18 13:24:10,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 13:24:10,225 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:10,226 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] [2022-01-18 13:24:10,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 13:24:10,227 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 13:24:10,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:10,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1413398939, now seen corresponding path program 1 times [2022-01-18 13:24:10,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:10,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492795617] [2022-01-18 13:24:10,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:10,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:10,677 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 13:24:10,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:10,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492795617] [2022-01-18 13:24:10,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492795617] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:10,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:10,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 13:24:10,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795092787] [2022-01-18 13:24:10,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:10,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 13:24:10,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:10,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 13:24:10,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 13:24:10,680 INFO L87 Difference]: Start difference. First operand 13247 states and 59468 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:11,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:11,288 INFO L93 Difference]: Finished difference Result 20737 states and 92881 transitions. [2022-01-18 13:24:11,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 13:24:11,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-01-18 13:24:11,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:11,457 INFO L225 Difference]: With dead ends: 20737 [2022-01-18 13:24:11,457 INFO L226 Difference]: Without dead ends: 20290 [2022-01-18 13:24:11,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-01-18 13:24:11,463 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 125 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:11,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 445 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 13:24:11,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20290 states. [2022-01-18 13:24:12,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20290 to 16679. [2022-01-18 13:24:12,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16679 states, 16678 states have (on average 4.47133948914738) internal successors, (74573), 16678 states have internal predecessors, (74573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:12,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16679 states to 16679 states and 74573 transitions. [2022-01-18 13:24:12,454 INFO L78 Accepts]: Start accepts. Automaton has 16679 states and 74573 transitions. Word has length 98 [2022-01-18 13:24:12,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:12,455 INFO L470 AbstractCegarLoop]: Abstraction has 16679 states and 74573 transitions. [2022-01-18 13:24:12,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:12,455 INFO L276 IsEmpty]: Start isEmpty. Operand 16679 states and 74573 transitions. [2022-01-18 13:24:12,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:24:12,515 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:12,515 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] [2022-01-18 13:24:12,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 13:24:12,515 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 13:24:12,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:12,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1520857668, now seen corresponding path program 1 times [2022-01-18 13:24:12,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:12,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021084131] [2022-01-18 13:24:12,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:12,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:12,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:12,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:12,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021084131] [2022-01-18 13:24:12,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021084131] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:12,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:12,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 13:24:12,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039854649] [2022-01-18 13:24:12,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:12,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 13:24:12,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:12,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 13:24:12,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 13:24:12,823 INFO L87 Difference]: Start difference. First operand 16679 states and 74573 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:13,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:13,150 INFO L93 Difference]: Finished difference Result 26954 states and 120021 transitions. [2022-01-18 13:24:13,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 13:24:13,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:24:13,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:13,501 INFO L225 Difference]: With dead ends: 26954 [2022-01-18 13:24:13,501 INFO L226 Difference]: Without dead ends: 26498 [2022-01-18 13:24:13,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 13:24:13,511 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 153 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:13,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 419 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 13:24:13,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26498 states. [2022-01-18 13:24:14,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26498 to 19892. [2022-01-18 13:24:14,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19892 states, 19891 states have (on average 4.536322960132724) internal successors, (90232), 19891 states have internal predecessors, (90232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:14,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19892 states to 19892 states and 90232 transitions. [2022-01-18 13:24:14,587 INFO L78 Accepts]: Start accepts. Automaton has 19892 states and 90232 transitions. Word has length 101 [2022-01-18 13:24:14,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:14,588 INFO L470 AbstractCegarLoop]: Abstraction has 19892 states and 90232 transitions. [2022-01-18 13:24:14,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:14,588 INFO L276 IsEmpty]: Start isEmpty. Operand 19892 states and 90232 transitions. [2022-01-18 13:24:14,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:24:14,675 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:14,675 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] [2022-01-18 13:24:14,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 13:24:14,675 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 13:24:14,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:14,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1028401524, now seen corresponding path program 1 times [2022-01-18 13:24:14,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:14,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682444413] [2022-01-18 13:24:14,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:14,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:14,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:14,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:14,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682444413] [2022-01-18 13:24:14,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682444413] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:14,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:14,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 13:24:14,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733215653] [2022-01-18 13:24:14,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:14,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 13:24:14,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:14,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 13:24:14,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 13:24:14,834 INFO L87 Difference]: Start difference. First operand 19892 states and 90232 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:15,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:15,343 INFO L93 Difference]: Finished difference Result 36365 states and 161249 transitions. [2022-01-18 13:24:15,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 13:24:15,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:24:15,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:15,534 INFO L225 Difference]: With dead ends: 36365 [2022-01-18 13:24:15,534 INFO L226 Difference]: Without dead ends: 35807 [2022-01-18 13:24:15,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 13:24:15,535 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 170 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:15,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 542 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 13:24:15,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35807 states. [2022-01-18 13:24:16,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35807 to 25190. [2022-01-18 13:24:16,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25190 states, 25189 states have (on average 4.58307197586248) internal successors, (115443), 25189 states have internal predecessors, (115443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:16,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25190 states to 25190 states and 115443 transitions. [2022-01-18 13:24:16,686 INFO L78 Accepts]: Start accepts. Automaton has 25190 states and 115443 transitions. Word has length 101 [2022-01-18 13:24:16,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:16,687 INFO L470 AbstractCegarLoop]: Abstraction has 25190 states and 115443 transitions. [2022-01-18 13:24:16,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:16,687 INFO L276 IsEmpty]: Start isEmpty. Operand 25190 states and 115443 transitions. [2022-01-18 13:24:16,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:24:16,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:16,747 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] [2022-01-18 13:24:16,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 13:24:16,747 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 13:24:16,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:16,748 INFO L85 PathProgramCache]: Analyzing trace with hash 624817402, now seen corresponding path program 1 times [2022-01-18 13:24:16,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:16,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435675658] [2022-01-18 13:24:16,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:16,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:16,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:16,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:16,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435675658] [2022-01-18 13:24:16,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435675658] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:16,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:16,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 13:24:16,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646951773] [2022-01-18 13:24:16,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:16,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:24:16,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:16,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:24:16,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-01-18 13:24:16,984 INFO L87 Difference]: Start difference. First operand 25190 states and 115443 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:17,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:17,851 INFO L93 Difference]: Finished difference Result 42778 states and 188978 transitions. [2022-01-18 13:24:17,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 13:24:17,852 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:24:17,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:18,098 INFO L225 Difference]: With dead ends: 42778 [2022-01-18 13:24:18,098 INFO L226 Difference]: Without dead ends: 42310 [2022-01-18 13:24:18,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=59, Unknown=0, NotChecked=0, Total=110 [2022-01-18 13:24:18,099 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 293 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:18,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 593 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:24:18,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42310 states. [2022-01-18 13:24:19,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42310 to 31453. [2022-01-18 13:24:19,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31453 states, 31452 states have (on average 4.557102886938828) internal successors, (143330), 31452 states have internal predecessors, (143330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:19,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31453 states to 31453 states and 143330 transitions. [2022-01-18 13:24:19,454 INFO L78 Accepts]: Start accepts. Automaton has 31453 states and 143330 transitions. Word has length 101 [2022-01-18 13:24:19,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:19,455 INFO L470 AbstractCegarLoop]: Abstraction has 31453 states and 143330 transitions. [2022-01-18 13:24:19,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:19,455 INFO L276 IsEmpty]: Start isEmpty. Operand 31453 states and 143330 transitions. [2022-01-18 13:24:19,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:24:19,606 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:19,606 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] [2022-01-18 13:24:19,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 13:24:19,606 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 13:24:19,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:19,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1755644018, now seen corresponding path program 2 times [2022-01-18 13:24:19,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:19,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286675623] [2022-01-18 13:24:19,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:19,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:19,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:19,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:19,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286675623] [2022-01-18 13:24:19,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286675623] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:19,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:19,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 13:24:19,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963817698] [2022-01-18 13:24:19,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:19,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 13:24:19,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:19,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 13:24:19,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 13:24:19,792 INFO L87 Difference]: Start difference. First operand 31453 states and 143330 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:20,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:20,312 INFO L93 Difference]: Finished difference Result 53687 states and 241221 transitions. [2022-01-18 13:24:20,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 13:24:20,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:24:20,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:20,534 INFO L225 Difference]: With dead ends: 53687 [2022-01-18 13:24:20,534 INFO L226 Difference]: Without dead ends: 53216 [2022-01-18 13:24:20,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 13:24:20,536 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 128 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:20,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 443 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 13:24:20,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53216 states. [2022-01-18 13:24:21,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53216 to 34468. [2022-01-18 13:24:21,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34468 states, 34467 states have (on average 4.600893608379029) internal successors, (158579), 34467 states have internal predecessors, (158579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:22,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34468 states to 34468 states and 158579 transitions. [2022-01-18 13:24:22,209 INFO L78 Accepts]: Start accepts. Automaton has 34468 states and 158579 transitions. Word has length 101 [2022-01-18 13:24:22,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:22,209 INFO L470 AbstractCegarLoop]: Abstraction has 34468 states and 158579 transitions. [2022-01-18 13:24:22,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:22,209 INFO L276 IsEmpty]: Start isEmpty. Operand 34468 states and 158579 transitions. [2022-01-18 13:24:22,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:24:22,290 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:22,291 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] [2022-01-18 13:24:22,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 13:24:22,291 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 13:24:22,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:22,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1678848424, now seen corresponding path program 3 times [2022-01-18 13:24:22,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:22,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222764025] [2022-01-18 13:24:22,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:22,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:22,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:22,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:22,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222764025] [2022-01-18 13:24:22,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222764025] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:22,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:22,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 13:24:22,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917697840] [2022-01-18 13:24:22,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:22,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 13:24:22,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:22,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 13:24:22,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 13:24:22,462 INFO L87 Difference]: Start difference. First operand 34468 states and 158579 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:22,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:22,942 INFO L93 Difference]: Finished difference Result 54392 states and 244966 transitions. [2022-01-18 13:24:22,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 13:24:22,942 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:24:22,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:23,539 INFO L225 Difference]: With dead ends: 54392 [2022-01-18 13:24:23,540 INFO L226 Difference]: Without dead ends: 53285 [2022-01-18 13:24:23,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 13:24:23,540 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 184 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:23,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 577 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 13:24:23,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53285 states. [2022-01-18 13:24:24,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53285 to 35635. [2022-01-18 13:24:24,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35635 states, 35634 states have (on average 4.595863501150586) internal successors, (163769), 35634 states have internal predecessors, (163769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:24,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35635 states to 35635 states and 163769 transitions. [2022-01-18 13:24:24,768 INFO L78 Accepts]: Start accepts. Automaton has 35635 states and 163769 transitions. Word has length 101 [2022-01-18 13:24:24,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:24,769 INFO L470 AbstractCegarLoop]: Abstraction has 35635 states and 163769 transitions. [2022-01-18 13:24:24,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:24,769 INFO L276 IsEmpty]: Start isEmpty. Operand 35635 states and 163769 transitions. [2022-01-18 13:24:24,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:24:24,857 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:24,857 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] [2022-01-18 13:24:24,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 13:24:24,857 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 13:24:24,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:24,858 INFO L85 PathProgramCache]: Analyzing trace with hash 2009241916, now seen corresponding path program 4 times [2022-01-18 13:24:24,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:24,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125615654] [2022-01-18 13:24:24,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:24,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:24,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:24,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:24,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:24,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125615654] [2022-01-18 13:24:24,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125615654] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:24,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:24,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 13:24:24,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402137344] [2022-01-18 13:24:24,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:24,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 13:24:24,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:24,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 13:24:24,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 13:24:25,000 INFO L87 Difference]: Start difference. First operand 35635 states and 163769 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:25,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:25,525 INFO L93 Difference]: Finished difference Result 55719 states and 251286 transitions. [2022-01-18 13:24:25,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 13:24:25,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:24:25,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:26,261 INFO L225 Difference]: With dead ends: 55719 [2022-01-18 13:24:26,262 INFO L226 Difference]: Without dead ends: 55248 [2022-01-18 13:24:26,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 13:24:26,262 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 113 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:26,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 462 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 13:24:26,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55248 states. [2022-01-18 13:24:27,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55248 to 36781. [2022-01-18 13:24:27,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36781 states, 36780 states have (on average 4.6484230560087) internal successors, (170969), 36780 states have internal predecessors, (170969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:27,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36781 states to 36781 states and 170969 transitions. [2022-01-18 13:24:27,572 INFO L78 Accepts]: Start accepts. Automaton has 36781 states and 170969 transitions. Word has length 101 [2022-01-18 13:24:27,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:27,572 INFO L470 AbstractCegarLoop]: Abstraction has 36781 states and 170969 transitions. [2022-01-18 13:24:27,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:27,572 INFO L276 IsEmpty]: Start isEmpty. Operand 36781 states and 170969 transitions. [2022-01-18 13:24:27,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:24:27,655 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:27,655 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] [2022-01-18 13:24:27,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 13:24:27,655 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 13:24:27,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:27,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1148767062, now seen corresponding path program 5 times [2022-01-18 13:24:27,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:27,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562114554] [2022-01-18 13:24:27,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:27,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:27,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:27,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:27,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562114554] [2022-01-18 13:24:27,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562114554] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:27,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:27,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 13:24:27,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422156444] [2022-01-18 13:24:27,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:27,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 13:24:27,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:27,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 13:24:27,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 13:24:27,775 INFO L87 Difference]: Start difference. First operand 36781 states and 170969 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:28,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:28,292 INFO L93 Difference]: Finished difference Result 59553 states and 270944 transitions. [2022-01-18 13:24:28,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 13:24:28,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:24:28,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:29,023 INFO L225 Difference]: With dead ends: 59553 [2022-01-18 13:24:29,024 INFO L226 Difference]: Without dead ends: 58614 [2022-01-18 13:24:29,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-18 13:24:29,024 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 147 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:29,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 643 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 13:24:29,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58614 states. [2022-01-18 13:24:30,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58614 to 35991. [2022-01-18 13:24:30,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35991 states, 35990 states have (on average 4.6207279799944425) internal successors, (166300), 35990 states have internal predecessors, (166300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:30,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35991 states to 35991 states and 166300 transitions. [2022-01-18 13:24:30,386 INFO L78 Accepts]: Start accepts. Automaton has 35991 states and 166300 transitions. Word has length 101 [2022-01-18 13:24:30,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:30,386 INFO L470 AbstractCegarLoop]: Abstraction has 35991 states and 166300 transitions. [2022-01-18 13:24:30,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:30,387 INFO L276 IsEmpty]: Start isEmpty. Operand 35991 states and 166300 transitions. [2022-01-18 13:24:30,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:24:30,475 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:30,475 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] [2022-01-18 13:24:30,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 13:24:30,475 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 13:24:30,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:30,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1164695738, now seen corresponding path program 6 times [2022-01-18 13:24:30,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:30,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923885627] [2022-01-18 13:24:30,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:30,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:30,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:30,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:30,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923885627] [2022-01-18 13:24:30,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923885627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:30,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:30,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 13:24:30,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709919629] [2022-01-18 13:24:30,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:30,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:24:30,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:30,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:24:30,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 13:24:30,645 INFO L87 Difference]: Start difference. First operand 35991 states and 166300 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:32,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:32,004 INFO L93 Difference]: Finished difference Result 73129 states and 325053 transitions. [2022-01-18 13:24:32,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 13:24:32,004 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:24:32,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:32,377 INFO L225 Difference]: With dead ends: 73129 [2022-01-18 13:24:32,378 INFO L226 Difference]: Without dead ends: 72775 [2022-01-18 13:24:32,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-01-18 13:24:32,378 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 327 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:32,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 710 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:24:32,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72775 states. [2022-01-18 13:24:33,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72775 to 42115. [2022-01-18 13:24:33,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42115 states, 42114 states have (on average 4.6676639597283565) internal successors, (196574), 42114 states have internal predecessors, (196574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:34,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42115 states to 42115 states and 196574 transitions. [2022-01-18 13:24:34,035 INFO L78 Accepts]: Start accepts. Automaton has 42115 states and 196574 transitions. Word has length 101 [2022-01-18 13:24:34,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:34,036 INFO L470 AbstractCegarLoop]: Abstraction has 42115 states and 196574 transitions. [2022-01-18 13:24:34,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:34,036 INFO L276 IsEmpty]: Start isEmpty. Operand 42115 states and 196574 transitions. [2022-01-18 13:24:34,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:24:34,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:34,133 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] [2022-01-18 13:24:34,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 13:24:34,133 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 13:24:34,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:34,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1250229748, now seen corresponding path program 1 times [2022-01-18 13:24:34,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:34,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103372430] [2022-01-18 13:24:34,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:34,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:34,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:34,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:34,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103372430] [2022-01-18 13:24:34,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103372430] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 13:24:34,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992100063] [2022-01-18 13:24:34,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:34,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 13:24:34,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 13:24:34,296 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 13:24:34,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 13:24:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:34,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-18 13:24:34,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 13:24:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:34,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 13:24:35,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:35,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992100063] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 13:24:35,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 13:24:35,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8] total 18 [2022-01-18 13:24:35,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800049229] [2022-01-18 13:24:35,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:35,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:24:35,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:35,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:24:35,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-01-18 13:24:35,162 INFO L87 Difference]: Start difference. First operand 42115 states and 196574 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:36,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:36,643 INFO L93 Difference]: Finished difference Result 85330 states and 387617 transitions. [2022-01-18 13:24:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 13:24:36,643 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:24:36,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:36,970 INFO L225 Difference]: With dead ends: 85330 [2022-01-18 13:24:36,971 INFO L226 Difference]: Without dead ends: 82714 [2022-01-18 13:24:36,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2022-01-18 13:24:36,971 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 276 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:36,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 970 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 13:24:37,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82714 states. [2022-01-18 13:24:39,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82714 to 46849. [2022-01-18 13:24:39,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46849 states, 46848 states have (on average 4.64493681693989) internal successors, (217606), 46848 states have internal predecessors, (217606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:39,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46849 states to 46849 states and 217606 transitions. [2022-01-18 13:24:39,402 INFO L78 Accepts]: Start accepts. Automaton has 46849 states and 217606 transitions. Word has length 101 [2022-01-18 13:24:39,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:39,402 INFO L470 AbstractCegarLoop]: Abstraction has 46849 states and 217606 transitions. [2022-01-18 13:24:39,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:39,402 INFO L276 IsEmpty]: Start isEmpty. Operand 46849 states and 217606 transitions. [2022-01-18 13:24:39,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:24:39,515 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:39,515 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] [2022-01-18 13:24:39,532 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-18 13:24:39,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-01-18 13:24:39,716 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 13:24:39,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:39,717 INFO L85 PathProgramCache]: Analyzing trace with hash -2091700616, now seen corresponding path program 2 times [2022-01-18 13:24:39,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:39,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658179295] [2022-01-18 13:24:39,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:39,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:39,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:39,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:39,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658179295] [2022-01-18 13:24:39,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658179295] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:39,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:39,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 13:24:39,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269135937] [2022-01-18 13:24:39,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:39,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:24:39,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:39,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:24:39,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 13:24:39,922 INFO L87 Difference]: Start difference. First operand 46849 states and 217606 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:41,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:41,413 INFO L93 Difference]: Finished difference Result 85942 states and 384255 transitions. [2022-01-18 13:24:41,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 13:24:41,414 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:24:41,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:41,824 INFO L225 Difference]: With dead ends: 85942 [2022-01-18 13:24:41,824 INFO L226 Difference]: Without dead ends: 84511 [2022-01-18 13:24:41,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-01-18 13:24:41,825 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 379 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:41,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 574 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:24:41,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84511 states. [2022-01-18 13:24:43,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84511 to 48003. [2022-01-18 13:24:43,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48003 states, 48002 states have (on average 4.6668680471647015) internal successors, (224019), 48002 states have internal predecessors, (224019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:43,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48003 states to 48003 states and 224019 transitions. [2022-01-18 13:24:43,769 INFO L78 Accepts]: Start accepts. Automaton has 48003 states and 224019 transitions. Word has length 101 [2022-01-18 13:24:43,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:43,769 INFO L470 AbstractCegarLoop]: Abstraction has 48003 states and 224019 transitions. [2022-01-18 13:24:43,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:43,770 INFO L276 IsEmpty]: Start isEmpty. Operand 48003 states and 224019 transitions. [2022-01-18 13:24:44,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:24:44,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:44,341 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] [2022-01-18 13:24:44,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 13:24:44,341 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 13:24:44,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:44,342 INFO L85 PathProgramCache]: Analyzing trace with hash 825070516, now seen corresponding path program 2 times [2022-01-18 13:24:44,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:44,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173407271] [2022-01-18 13:24:44,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:44,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:44,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:44,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:44,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173407271] [2022-01-18 13:24:44,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173407271] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:44,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:44,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 13:24:44,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106286075] [2022-01-18 13:24:44,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:44,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 13:24:44,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:44,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 13:24:44,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 13:24:44,556 INFO L87 Difference]: Start difference. First operand 48003 states and 224019 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:45,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:45,407 INFO L93 Difference]: Finished difference Result 94807 states and 427810 transitions. [2022-01-18 13:24:45,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 13:24:45,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:24:45,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:45,808 INFO L225 Difference]: With dead ends: 94807 [2022-01-18 13:24:45,809 INFO L226 Difference]: Without dead ends: 94018 [2022-01-18 13:24:45,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 13:24:45,809 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 153 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:45,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 473 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 13:24:46,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94018 states. [2022-01-18 13:24:47,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94018 to 54941. [2022-01-18 13:24:48,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54941 states, 54940 states have (on average 4.679868947943211) internal successors, (257112), 54940 states have internal predecessors, (257112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:48,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54941 states to 54941 states and 257112 transitions. [2022-01-18 13:24:48,287 INFO L78 Accepts]: Start accepts. Automaton has 54941 states and 257112 transitions. Word has length 101 [2022-01-18 13:24:48,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:48,287 INFO L470 AbstractCegarLoop]: Abstraction has 54941 states and 257112 transitions. [2022-01-18 13:24:48,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:48,287 INFO L276 IsEmpty]: Start isEmpty. Operand 54941 states and 257112 transitions. [2022-01-18 13:24:48,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:24:48,440 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:48,440 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] [2022-01-18 13:24:48,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 13:24:48,441 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 13:24:48,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:48,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1490924426, now seen corresponding path program 2 times [2022-01-18 13:24:48,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:48,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429936998] [2022-01-18 13:24:48,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:48,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:48,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:48,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:48,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429936998] [2022-01-18 13:24:48,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429936998] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 13:24:48,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359096553] [2022-01-18 13:24:48,567 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 13:24:48,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 13:24:48,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 13:24:48,568 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 13:24:48,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 13:24:48,674 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 13:24:48,674 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 13:24:48,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 13:24:48,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 13:24:49,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:49,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 13:24:49,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:49,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359096553] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 13:24:49,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 13:24:49,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2022-01-18 13:24:49,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426890385] [2022-01-18 13:24:49,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:49,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 13:24:49,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:49,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 13:24:49,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-18 13:24:49,399 INFO L87 Difference]: Start difference. First operand 54941 states and 257112 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:50,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:50,599 INFO L93 Difference]: Finished difference Result 85086 states and 390328 transitions. [2022-01-18 13:24:50,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 13:24:50,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:24:50,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:50,964 INFO L225 Difference]: With dead ends: 85086 [2022-01-18 13:24:50,964 INFO L226 Difference]: Without dead ends: 85086 [2022-01-18 13:24:50,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 196 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-18 13:24:50,965 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 192 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:50,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 501 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 13:24:51,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85086 states. [2022-01-18 13:24:53,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85086 to 57551. [2022-01-18 13:24:53,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57551 states, 57550 states have (on average 4.682971329278888) internal successors, (269505), 57550 states have internal predecessors, (269505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:53,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57551 states to 57551 states and 269505 transitions. [2022-01-18 13:24:53,715 INFO L78 Accepts]: Start accepts. Automaton has 57551 states and 269505 transitions. Word has length 101 [2022-01-18 13:24:53,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:53,715 INFO L470 AbstractCegarLoop]: Abstraction has 57551 states and 269505 transitions. [2022-01-18 13:24:53,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:53,715 INFO L276 IsEmpty]: Start isEmpty. Operand 57551 states and 269505 transitions. [2022-01-18 13:24:53,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:24:53,868 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:53,868 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] [2022-01-18 13:24:53,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 13:24:54,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-01-18 13:24:54,069 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 13:24:54,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:54,069 INFO L85 PathProgramCache]: Analyzing trace with hash -538059778, now seen corresponding path program 3 times [2022-01-18 13:24:54,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:54,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451281412] [2022-01-18 13:24:54,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:54,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:54,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:54,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451281412] [2022-01-18 13:24:54,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451281412] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:24:54,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:24:54,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 13:24:54,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837869356] [2022-01-18 13:24:54,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:24:54,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 13:24:54,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:24:54,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 13:24:54,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 13:24:54,176 INFO L87 Difference]: Start difference. First operand 57551 states and 269505 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:55,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:24:55,537 INFO L93 Difference]: Finished difference Result 90905 states and 413345 transitions. [2022-01-18 13:24:55,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 13:24:55,537 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:24:55,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:24:55,986 INFO L225 Difference]: With dead ends: 90905 [2022-01-18 13:24:55,987 INFO L226 Difference]: Without dead ends: 90905 [2022-01-18 13:24:55,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 13:24:55,987 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 195 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 13:24:55,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 650 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 13:24:56,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90905 states. [2022-01-18 13:24:57,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90905 to 57641. [2022-01-18 13:24:57,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57641 states, 57640 states have (on average 4.690249826509368) internal successors, (270346), 57640 states have internal predecessors, (270346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:58,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57641 states to 57641 states and 270346 transitions. [2022-01-18 13:24:58,685 INFO L78 Accepts]: Start accepts. Automaton has 57641 states and 270346 transitions. Word has length 101 [2022-01-18 13:24:58,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:24:58,686 INFO L470 AbstractCegarLoop]: Abstraction has 57641 states and 270346 transitions. [2022-01-18 13:24:58,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:24:58,686 INFO L276 IsEmpty]: Start isEmpty. Operand 57641 states and 270346 transitions. [2022-01-18 13:24:58,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:24:58,890 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:24:58,890 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] [2022-01-18 13:24:58,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 13:24:58,891 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 13:24:58,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:24:58,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1066615254, now seen corresponding path program 3 times [2022-01-18 13:24:58,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:24:58,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207319204] [2022-01-18 13:24:58,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:24:58,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:24:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:24:59,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:59,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:24:59,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207319204] [2022-01-18 13:24:59,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207319204] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 13:24:59,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458959446] [2022-01-18 13:24:59,163 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 13:24:59,163 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 13:24:59,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 13:24:59,168 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 13:24:59,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 13:24:59,276 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 13:24:59,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 13:24:59,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-18 13:24:59,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 13:24:59,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:24:59,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 13:25:00,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:00,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458959446] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 13:25:00,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 13:25:00,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 8] total 22 [2022-01-18 13:25:00,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641572342] [2022-01-18 13:25:00,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:00,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:25:00,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:00,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:25:00,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2022-01-18 13:25:00,195 INFO L87 Difference]: Start difference. First operand 57641 states and 270346 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:02,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:02,129 INFO L93 Difference]: Finished difference Result 140012 states and 638506 transitions. [2022-01-18 13:25:02,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 13:25:02,129 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:25:02,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:02,866 INFO L225 Difference]: With dead ends: 140012 [2022-01-18 13:25:02,866 INFO L226 Difference]: Without dead ends: 138992 [2022-01-18 13:25:02,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=680, Unknown=0, NotChecked=0, Total=812 [2022-01-18 13:25:02,867 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 446 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:02,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 931 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:25:03,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138992 states. [2022-01-18 13:25:05,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138992 to 58653. [2022-01-18 13:25:05,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58653 states, 58652 states have (on average 4.714263793221033) internal successors, (276501), 58652 states have internal predecessors, (276501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:06,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58653 states to 58653 states and 276501 transitions. [2022-01-18 13:25:06,165 INFO L78 Accepts]: Start accepts. Automaton has 58653 states and 276501 transitions. Word has length 101 [2022-01-18 13:25:06,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:06,166 INFO L470 AbstractCegarLoop]: Abstraction has 58653 states and 276501 transitions. [2022-01-18 13:25:06,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:06,166 INFO L276 IsEmpty]: Start isEmpty. Operand 58653 states and 276501 transitions. [2022-01-18 13:25:06,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:25:06,325 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:06,325 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] [2022-01-18 13:25:06,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-18 13:25:06,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 13:25:06,526 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 13:25:06,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:06,527 INFO L85 PathProgramCache]: Analyzing trace with hash 2008704442, now seen corresponding path program 4 times [2022-01-18 13:25:06,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:06,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682132032] [2022-01-18 13:25:06,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:06,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:06,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:06,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:06,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682132032] [2022-01-18 13:25:06,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682132032] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:06,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:06,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 13:25:06,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079391717] [2022-01-18 13:25:06,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:06,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:25:06,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:06,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:25:06,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 13:25:06,715 INFO L87 Difference]: Start difference. First operand 58653 states and 276501 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:08,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:08,269 INFO L93 Difference]: Finished difference Result 102689 states and 465573 transitions. [2022-01-18 13:25:08,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 13:25:08,270 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:25:08,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:08,715 INFO L225 Difference]: With dead ends: 102689 [2022-01-18 13:25:08,716 INFO L226 Difference]: Without dead ends: 101537 [2022-01-18 13:25:08,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-01-18 13:25:08,716 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 239 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:08,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 753 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 13:25:09,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101537 states. [2022-01-18 13:25:11,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101537 to 62749. [2022-01-18 13:25:11,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62749 states, 62748 states have (on average 4.711640211640212) internal successors, (295646), 62748 states have internal predecessors, (295646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:11,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62749 states to 62749 states and 295646 transitions. [2022-01-18 13:25:11,744 INFO L78 Accepts]: Start accepts. Automaton has 62749 states and 295646 transitions. Word has length 101 [2022-01-18 13:25:11,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:11,744 INFO L470 AbstractCegarLoop]: Abstraction has 62749 states and 295646 transitions. [2022-01-18 13:25:11,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:11,744 INFO L276 IsEmpty]: Start isEmpty. Operand 62749 states and 295646 transitions. [2022-01-18 13:25:11,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:25:11,916 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:11,916 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] [2022-01-18 13:25:11,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 13:25:11,916 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 13:25:11,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:11,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1001247478, now seen corresponding path program 3 times [2022-01-18 13:25:11,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:11,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180803000] [2022-01-18 13:25:11,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:11,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:12,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:12,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:12,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180803000] [2022-01-18 13:25:12,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180803000] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:12,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:12,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 13:25:12,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352133843] [2022-01-18 13:25:12,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:12,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:25:12,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:12,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:25:12,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 13:25:12,104 INFO L87 Difference]: Start difference. First operand 62749 states and 295646 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:13,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:13,689 INFO L93 Difference]: Finished difference Result 104819 states and 477892 transitions. [2022-01-18 13:25:13,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 13:25:13,689 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:25:13,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:14,164 INFO L225 Difference]: With dead ends: 104819 [2022-01-18 13:25:14,165 INFO L226 Difference]: Without dead ends: 103547 [2022-01-18 13:25:14,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-01-18 13:25:14,165 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 332 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:14,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 753 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:25:14,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103547 states. [2022-01-18 13:25:17,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103547 to 63625. [2022-01-18 13:25:17,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63625 states, 63624 states have (on average 4.714038727524205) internal successors, (299926), 63624 states have internal predecessors, (299926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:17,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63625 states to 63625 states and 299926 transitions. [2022-01-18 13:25:17,400 INFO L78 Accepts]: Start accepts. Automaton has 63625 states and 299926 transitions. Word has length 101 [2022-01-18 13:25:17,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:17,400 INFO L470 AbstractCegarLoop]: Abstraction has 63625 states and 299926 transitions. [2022-01-18 13:25:17,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 63625 states and 299926 transitions. [2022-01-18 13:25:17,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:25:17,571 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:17,572 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] [2022-01-18 13:25:17,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 13:25:17,572 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 13:25:17,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:17,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1632737120, now seen corresponding path program 5 times [2022-01-18 13:25:17,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:17,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052153716] [2022-01-18 13:25:17,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:17,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:17,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:17,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:17,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052153716] [2022-01-18 13:25:17,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052153716] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:17,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:17,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 13:25:17,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101199332] [2022-01-18 13:25:17,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:17,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:25:17,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:17,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:25:17,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 13:25:17,763 INFO L87 Difference]: Start difference. First operand 63625 states and 299926 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:19,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:19,373 INFO L93 Difference]: Finished difference Result 116066 states and 531066 transitions. [2022-01-18 13:25:19,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 13:25:19,373 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:25:19,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:19,899 INFO L225 Difference]: With dead ends: 116066 [2022-01-18 13:25:19,899 INFO L226 Difference]: Without dead ends: 114764 [2022-01-18 13:25:19,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-01-18 13:25:19,899 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 256 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:19,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 822 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:25:20,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114764 states. [2022-01-18 13:25:22,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114764 to 64505. [2022-01-18 13:25:22,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64505 states, 64504 states have (on average 4.708762247302493) internal successors, (303734), 64504 states have internal predecessors, (303734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:23,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64505 states to 64505 states and 303734 transitions. [2022-01-18 13:25:23,176 INFO L78 Accepts]: Start accepts. Automaton has 64505 states and 303734 transitions. Word has length 101 [2022-01-18 13:25:23,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:23,176 INFO L470 AbstractCegarLoop]: Abstraction has 64505 states and 303734 transitions. [2022-01-18 13:25:23,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:23,176 INFO L276 IsEmpty]: Start isEmpty. Operand 64505 states and 303734 transitions. [2022-01-18 13:25:23,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:25:23,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:23,923 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] [2022-01-18 13:25:23,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 13:25:23,923 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 13:25:23,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:23,923 INFO L85 PathProgramCache]: Analyzing trace with hash -159366288, now seen corresponding path program 7 times [2022-01-18 13:25:23,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:23,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314428577] [2022-01-18 13:25:23,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:23,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:24,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:24,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:24,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314428577] [2022-01-18 13:25:24,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314428577] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:24,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:24,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 13:25:24,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885834294] [2022-01-18 13:25:24,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:24,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 13:25:24,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:24,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 13:25:24,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-18 13:25:24,136 INFO L87 Difference]: Start difference. First operand 64505 states and 303734 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:26,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:26,056 INFO L93 Difference]: Finished difference Result 133297 states and 606455 transitions. [2022-01-18 13:25:26,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 13:25:26,056 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:25:26,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:27,193 INFO L225 Difference]: With dead ends: 133297 [2022-01-18 13:25:27,193 INFO L226 Difference]: Without dead ends: 131701 [2022-01-18 13:25:27,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2022-01-18 13:25:27,194 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 548 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:27,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [548 Valid, 798 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:25:27,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131701 states. [2022-01-18 13:25:30,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131701 to 69664. [2022-01-18 13:25:30,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69664 states, 69663 states have (on average 4.735483685744226) internal successors, (329888), 69663 states have internal predecessors, (329888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:30,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69664 states to 69664 states and 329888 transitions. [2022-01-18 13:25:30,459 INFO L78 Accepts]: Start accepts. Automaton has 69664 states and 329888 transitions. Word has length 101 [2022-01-18 13:25:30,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:30,460 INFO L470 AbstractCegarLoop]: Abstraction has 69664 states and 329888 transitions. [2022-01-18 13:25:30,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:30,460 INFO L276 IsEmpty]: Start isEmpty. Operand 69664 states and 329888 transitions. [2022-01-18 13:25:30,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:25:30,647 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:30,647 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] [2022-01-18 13:25:30,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 13:25:30,647 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 13:25:30,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:30,648 INFO L85 PathProgramCache]: Analyzing trace with hash -64670636, now seen corresponding path program 8 times [2022-01-18 13:25:30,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:30,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101844905] [2022-01-18 13:25:30,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:30,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:30,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:30,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:30,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101844905] [2022-01-18 13:25:30,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101844905] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:30,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:30,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 13:25:30,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609229205] [2022-01-18 13:25:30,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:30,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 13:25:30,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:30,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 13:25:30,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-18 13:25:30,823 INFO L87 Difference]: Start difference. First operand 69664 states and 329888 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:33,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:33,700 INFO L93 Difference]: Finished difference Result 173005 states and 788172 transitions. [2022-01-18 13:25:33,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 13:25:33,700 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:25:33,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:34,677 INFO L225 Difference]: With dead ends: 173005 [2022-01-18 13:25:34,677 INFO L226 Difference]: Without dead ends: 172927 [2022-01-18 13:25:34,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-01-18 13:25:34,678 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 726 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:34,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [726 Valid, 783 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 13:25:34,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172927 states. [2022-01-18 13:25:38,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172927 to 73078. [2022-01-18 13:25:38,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73078 states, 73077 states have (on average 4.785117068297823) internal successors, (349682), 73077 states have internal predecessors, (349682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:39,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73078 states to 73078 states and 349682 transitions. [2022-01-18 13:25:39,318 INFO L78 Accepts]: Start accepts. Automaton has 73078 states and 349682 transitions. Word has length 101 [2022-01-18 13:25:39,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:39,319 INFO L470 AbstractCegarLoop]: Abstraction has 73078 states and 349682 transitions. [2022-01-18 13:25:39,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:39,319 INFO L276 IsEmpty]: Start isEmpty. Operand 73078 states and 349682 transitions. [2022-01-18 13:25:39,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:25:39,591 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:39,591 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] [2022-01-18 13:25:39,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 13:25:39,592 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 13:25:39,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:39,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1014744858, now seen corresponding path program 9 times [2022-01-18 13:25:39,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:39,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000689136] [2022-01-18 13:25:39,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:39,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:39,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:39,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:39,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000689136] [2022-01-18 13:25:39,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000689136] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:39,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:39,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 13:25:39,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148392079] [2022-01-18 13:25:39,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:39,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 13:25:39,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:39,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 13:25:39,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-18 13:25:39,751 INFO L87 Difference]: Start difference. First operand 73078 states and 349682 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:41,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:41,986 INFO L93 Difference]: Finished difference Result 173327 states and 795128 transitions. [2022-01-18 13:25:41,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 13:25:41,987 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:25:41,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:43,147 INFO L225 Difference]: With dead ends: 173327 [2022-01-18 13:25:43,148 INFO L226 Difference]: Without dead ends: 171809 [2022-01-18 13:25:43,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-01-18 13:25:43,149 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 425 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:43,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [425 Valid, 1026 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 13:25:43,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171809 states. [2022-01-18 13:25:47,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171809 to 73644. [2022-01-18 13:25:47,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73644 states, 73643 states have (on average 4.799356354303871) internal successors, (353439), 73643 states have internal predecessors, (353439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:47,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73644 states to 73644 states and 353439 transitions. [2022-01-18 13:25:47,615 INFO L78 Accepts]: Start accepts. Automaton has 73644 states and 353439 transitions. Word has length 101 [2022-01-18 13:25:47,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:47,616 INFO L470 AbstractCegarLoop]: Abstraction has 73644 states and 353439 transitions. [2022-01-18 13:25:47,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:47,616 INFO L276 IsEmpty]: Start isEmpty. Operand 73644 states and 353439 transitions. [2022-01-18 13:25:47,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:25:47,815 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:47,815 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] [2022-01-18 13:25:47,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 13:25:47,816 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 13:25:47,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:47,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1523804302, now seen corresponding path program 10 times [2022-01-18 13:25:47,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:47,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819447151] [2022-01-18 13:25:47,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:47,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:47,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:47,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:47,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819447151] [2022-01-18 13:25:47,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819447151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:47,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:47,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 13:25:47,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771471007] [2022-01-18 13:25:47,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:47,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 13:25:47,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:47,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 13:25:47,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-18 13:25:47,974 INFO L87 Difference]: Start difference. First operand 73644 states and 353439 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:50,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:50,015 INFO L93 Difference]: Finished difference Result 167944 states and 773541 transitions. [2022-01-18 13:25:50,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 13:25:50,015 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:25:50,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:51,593 INFO L225 Difference]: With dead ends: 167944 [2022-01-18 13:25:51,593 INFO L226 Difference]: Without dead ends: 166000 [2022-01-18 13:25:51,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-01-18 13:25:51,594 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 645 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:51,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 870 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:25:51,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166000 states. [2022-01-18 13:25:55,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166000 to 72812. [2022-01-18 13:25:55,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72812 states, 72811 states have (on average 4.792256664514977) internal successors, (348929), 72811 states have internal predecessors, (348929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:55,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72812 states to 72812 states and 348929 transitions. [2022-01-18 13:25:55,598 INFO L78 Accepts]: Start accepts. Automaton has 72812 states and 348929 transitions. Word has length 101 [2022-01-18 13:25:55,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:25:55,599 INFO L470 AbstractCegarLoop]: Abstraction has 72812 states and 348929 transitions. [2022-01-18 13:25:55,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:55,599 INFO L276 IsEmpty]: Start isEmpty. Operand 72812 states and 348929 transitions. [2022-01-18 13:25:55,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:25:55,792 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:25:55,792 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] [2022-01-18 13:25:55,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 13:25:55,792 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 13:25:55,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:25:55,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1219880012, now seen corresponding path program 4 times [2022-01-18 13:25:55,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:25:55,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745061352] [2022-01-18 13:25:55,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:25:55,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:25:55,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:25:56,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:25:56,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:25:56,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745061352] [2022-01-18 13:25:56,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745061352] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:25:56,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:25:56,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 13:25:56,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656292578] [2022-01-18 13:25:56,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:25:56,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:25:56,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:25:56,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:25:56,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 13:25:56,673 INFO L87 Difference]: Start difference. First operand 72812 states and 348929 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:25:57,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:25:57,843 INFO L93 Difference]: Finished difference Result 123563 states and 563369 transitions. [2022-01-18 13:25:57,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 13:25:57,844 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:25:57,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:25:59,148 INFO L225 Difference]: With dead ends: 123563 [2022-01-18 13:25:59,149 INFO L226 Difference]: Without dead ends: 121565 [2022-01-18 13:25:59,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-01-18 13:25:59,149 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 279 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:25:59,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 653 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:25:59,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121565 states. [2022-01-18 13:26:01,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121565 to 71345. [2022-01-18 13:26:01,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71345 states, 71344 states have (on average 4.789891231217762) internal successors, (341730), 71344 states have internal predecessors, (341730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:02,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71345 states to 71345 states and 341730 transitions. [2022-01-18 13:26:02,425 INFO L78 Accepts]: Start accepts. Automaton has 71345 states and 341730 transitions. Word has length 101 [2022-01-18 13:26:02,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:02,426 INFO L470 AbstractCegarLoop]: Abstraction has 71345 states and 341730 transitions. [2022-01-18 13:26:02,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:02,426 INFO L276 IsEmpty]: Start isEmpty. Operand 71345 states and 341730 transitions. [2022-01-18 13:26:02,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:26:02,624 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:02,624 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] [2022-01-18 13:26:02,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 13:26:02,624 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 13:26:02,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:02,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1873068082, now seen corresponding path program 5 times [2022-01-18 13:26:02,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:02,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338233902] [2022-01-18 13:26:02,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:02,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:02,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:02,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:02,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338233902] [2022-01-18 13:26:02,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338233902] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:02,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:02,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 13:26:02,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191241007] [2022-01-18 13:26:02,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:02,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:26:02,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:02,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:26:02,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-01-18 13:26:02,841 INFO L87 Difference]: Start difference. First operand 71345 states and 341730 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:04,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:04,254 INFO L93 Difference]: Finished difference Result 78692 states and 372559 transitions. [2022-01-18 13:26:04,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 13:26:04,255 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:26:04,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:04,657 INFO L225 Difference]: With dead ends: 78692 [2022-01-18 13:26:04,657 INFO L226 Difference]: Without dead ends: 78692 [2022-01-18 13:26:04,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2022-01-18 13:26:04,657 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 178 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:04,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 516 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:26:04,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78692 states. [2022-01-18 13:26:06,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78692 to 72013. [2022-01-18 13:26:06,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72013 states, 72012 states have (on average 4.787146586679998) internal successors, (344732), 72012 states have internal predecessors, (344732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:07,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72013 states to 72013 states and 344732 transitions. [2022-01-18 13:26:07,391 INFO L78 Accepts]: Start accepts. Automaton has 72013 states and 344732 transitions. Word has length 101 [2022-01-18 13:26:07,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:07,391 INFO L470 AbstractCegarLoop]: Abstraction has 72013 states and 344732 transitions. [2022-01-18 13:26:07,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:07,391 INFO L276 IsEmpty]: Start isEmpty. Operand 72013 states and 344732 transitions. [2022-01-18 13:26:07,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:26:07,645 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:07,645 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] [2022-01-18 13:26:07,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 13:26:07,645 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 13:26:07,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:07,646 INFO L85 PathProgramCache]: Analyzing trace with hash 236106550, now seen corresponding path program 6 times [2022-01-18 13:26:07,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:07,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953889719] [2022-01-18 13:26:07,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:07,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:07,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:07,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:07,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953889719] [2022-01-18 13:26:07,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953889719] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:07,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:07,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 13:26:07,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310878386] [2022-01-18 13:26:07,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:07,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:26:07,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:07,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:26:07,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 13:26:07,793 INFO L87 Difference]: Start difference. First operand 72013 states and 344732 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:09,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:09,371 INFO L93 Difference]: Finished difference Result 115768 states and 536362 transitions. [2022-01-18 13:26:09,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 13:26:09,372 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:26:09,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:10,009 INFO L225 Difference]: With dead ends: 115768 [2022-01-18 13:26:10,009 INFO L226 Difference]: Without dead ends: 114436 [2022-01-18 13:26:10,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-01-18 13:26:10,010 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 373 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:10,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 703 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:26:10,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114436 states. [2022-01-18 13:26:12,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114436 to 71105. [2022-01-18 13:26:12,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71105 states, 71104 states have (on average 4.780715571557156) internal successors, (339928), 71104 states have internal predecessors, (339928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:13,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71105 states to 71105 states and 339928 transitions. [2022-01-18 13:26:13,102 INFO L78 Accepts]: Start accepts. Automaton has 71105 states and 339928 transitions. Word has length 101 [2022-01-18 13:26:13,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:13,102 INFO L470 AbstractCegarLoop]: Abstraction has 71105 states and 339928 transitions. [2022-01-18 13:26:13,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:13,102 INFO L276 IsEmpty]: Start isEmpty. Operand 71105 states and 339928 transitions. [2022-01-18 13:26:13,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:26:13,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:13,291 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] [2022-01-18 13:26:13,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 13:26:13,291 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 13:26:13,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:13,291 INFO L85 PathProgramCache]: Analyzing trace with hash 644625612, now seen corresponding path program 4 times [2022-01-18 13:26:13,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:13,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396167199] [2022-01-18 13:26:13,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:13,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:13,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:13,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:13,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396167199] [2022-01-18 13:26:13,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396167199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:13,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:13,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 13:26:13,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139446437] [2022-01-18 13:26:13,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:13,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 13:26:13,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:13,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 13:26:13,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 13:26:13,380 INFO L87 Difference]: Start difference. First operand 71105 states and 339928 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:14,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:14,771 INFO L93 Difference]: Finished difference Result 113596 states and 521253 transitions. [2022-01-18 13:26:14,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 13:26:14,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:26:14,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:15,349 INFO L225 Difference]: With dead ends: 113596 [2022-01-18 13:26:15,349 INFO L226 Difference]: Without dead ends: 111391 [2022-01-18 13:26:15,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 13:26:15,349 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 164 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:15,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 430 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 13:26:15,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111391 states. [2022-01-18 13:26:17,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111391 to 74997. [2022-01-18 13:26:18,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74997 states, 74996 states have (on average 4.776268067630274) internal successors, (358201), 74996 states have internal predecessors, (358201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:18,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74997 states to 74997 states and 358201 transitions. [2022-01-18 13:26:18,366 INFO L78 Accepts]: Start accepts. Automaton has 74997 states and 358201 transitions. Word has length 101 [2022-01-18 13:26:18,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:18,366 INFO L470 AbstractCegarLoop]: Abstraction has 74997 states and 358201 transitions. [2022-01-18 13:26:18,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:18,367 INFO L276 IsEmpty]: Start isEmpty. Operand 74997 states and 358201 transitions. [2022-01-18 13:26:18,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:26:18,564 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:18,564 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] [2022-01-18 13:26:18,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 13:26:18,564 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 13:26:18,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:18,564 INFO L85 PathProgramCache]: Analyzing trace with hash -718504682, now seen corresponding path program 5 times [2022-01-18 13:26:18,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:18,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651072363] [2022-01-18 13:26:18,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:18,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:18,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:18,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:18,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651072363] [2022-01-18 13:26:18,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651072363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:18,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:18,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 13:26:18,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082873328] [2022-01-18 13:26:18,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:18,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 13:26:18,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:18,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 13:26:18,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 13:26:18,670 INFO L87 Difference]: Start difference. First operand 74997 states and 358201 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:20,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:20,245 INFO L93 Difference]: Finished difference Result 121981 states and 564458 transitions. [2022-01-18 13:26:20,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 13:26:20,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:26:20,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:21,430 INFO L225 Difference]: With dead ends: 121981 [2022-01-18 13:26:21,430 INFO L226 Difference]: Without dead ends: 120577 [2022-01-18 13:26:21,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-01-18 13:26:21,447 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 244 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:21,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 620 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 13:26:21,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120577 states. [2022-01-18 13:26:23,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120577 to 80811. [2022-01-18 13:26:23,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80811 states, 80810 states have (on average 4.800631110011137) internal successors, (387939), 80810 states have internal predecessors, (387939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:24,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80811 states to 80811 states and 387939 transitions. [2022-01-18 13:26:24,802 INFO L78 Accepts]: Start accepts. Automaton has 80811 states and 387939 transitions. Word has length 101 [2022-01-18 13:26:24,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:24,802 INFO L470 AbstractCegarLoop]: Abstraction has 80811 states and 387939 transitions. [2022-01-18 13:26:24,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:24,802 INFO L276 IsEmpty]: Start isEmpty. Operand 80811 states and 387939 transitions. [2022-01-18 13:26:25,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:26:25,038 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:25,039 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] [2022-01-18 13:26:25,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 13:26:25,039 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 13:26:25,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:25,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1659670096, now seen corresponding path program 6 times [2022-01-18 13:26:25,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:25,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815229959] [2022-01-18 13:26:25,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:25,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:25,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:25,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:25,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815229959] [2022-01-18 13:26:25,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815229959] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 13:26:25,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044313281] [2022-01-18 13:26:25,135 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 13:26:25,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 13:26:25,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 13:26:25,143 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 13:26:25,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 13:26:25,246 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-01-18 13:26:25,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 13:26:25,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 13:26:25,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 13:26:25,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:25,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 13:26:25,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:25,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044313281] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 13:26:25,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 13:26:25,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2022-01-18 13:26:25,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356088708] [2022-01-18 13:26:25,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:25,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 13:26:25,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:25,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 13:26:25,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 13:26:25,693 INFO L87 Difference]: Start difference. First operand 80811 states and 387939 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:27,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:27,235 INFO L93 Difference]: Finished difference Result 118207 states and 550550 transitions. [2022-01-18 13:26:27,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 13:26:27,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:26:27,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:27,838 INFO L225 Difference]: With dead ends: 118207 [2022-01-18 13:26:27,838 INFO L226 Difference]: Without dead ends: 118207 [2022-01-18 13:26:27,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-01-18 13:26:27,839 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 218 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:27,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 459 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 13:26:27,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118207 states. [2022-01-18 13:26:30,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118207 to 79941. [2022-01-18 13:26:30,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79941 states, 79940 states have (on average 4.783149862396797) internal successors, (382365), 79940 states have internal predecessors, (382365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:30,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79941 states to 79941 states and 382365 transitions. [2022-01-18 13:26:30,957 INFO L78 Accepts]: Start accepts. Automaton has 79941 states and 382365 transitions. Word has length 101 [2022-01-18 13:26:30,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:30,957 INFO L470 AbstractCegarLoop]: Abstraction has 79941 states and 382365 transitions. [2022-01-18 13:26:30,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:30,957 INFO L276 IsEmpty]: Start isEmpty. Operand 79941 states and 382365 transitions. [2022-01-18 13:26:31,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:26:31,167 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:31,167 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] [2022-01-18 13:26:31,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-01-18 13:26:31,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-01-18 13:26:31,368 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 13:26:31,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:31,368 INFO L85 PathProgramCache]: Analyzing trace with hash 899081794, now seen corresponding path program 6 times [2022-01-18 13:26:31,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:31,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576584630] [2022-01-18 13:26:31,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:31,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:31,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:31,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:31,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576584630] [2022-01-18 13:26:31,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576584630] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:31,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:31,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 13:26:31,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652364929] [2022-01-18 13:26:31,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:31,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:26:31,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:31,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:26:31,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 13:26:31,491 INFO L87 Difference]: Start difference. First operand 79941 states and 382365 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:33,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:33,662 INFO L93 Difference]: Finished difference Result 116456 states and 535973 transitions. [2022-01-18 13:26:33,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 13:26:33,662 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:26:33,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:34,649 INFO L225 Difference]: With dead ends: 116456 [2022-01-18 13:26:34,649 INFO L226 Difference]: Without dead ends: 115106 [2022-01-18 13:26:34,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-01-18 13:26:34,650 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 331 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:34,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 687 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:26:34,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115106 states. [2022-01-18 13:26:37,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115106 to 83228. [2022-01-18 13:26:37,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83228 states, 83227 states have (on average 4.7943696156295434) internal successors, (399021), 83227 states have internal predecessors, (399021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:37,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83228 states to 83228 states and 399021 transitions. [2022-01-18 13:26:37,907 INFO L78 Accepts]: Start accepts. Automaton has 83228 states and 399021 transitions. Word has length 101 [2022-01-18 13:26:37,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:37,907 INFO L470 AbstractCegarLoop]: Abstraction has 83228 states and 399021 transitions. [2022-01-18 13:26:37,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:37,907 INFO L276 IsEmpty]: Start isEmpty. Operand 83228 states and 399021 transitions. [2022-01-18 13:26:38,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:26:38,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:38,133 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] [2022-01-18 13:26:38,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 13:26:38,133 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 13:26:38,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:38,134 INFO L85 PathProgramCache]: Analyzing trace with hash -43022780, now seen corresponding path program 7 times [2022-01-18 13:26:38,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:38,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768261387] [2022-01-18 13:26:38,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:38,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:38,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:38,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:38,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768261387] [2022-01-18 13:26:38,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768261387] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:38,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:38,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 13:26:38,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123499152] [2022-01-18 13:26:38,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:38,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:26:38,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:38,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:26:38,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 13:26:38,234 INFO L87 Difference]: Start difference. First operand 83228 states and 399021 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:39,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:39,707 INFO L93 Difference]: Finished difference Result 110699 states and 511412 transitions. [2022-01-18 13:26:39,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 13:26:39,707 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:26:39,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:40,769 INFO L225 Difference]: With dead ends: 110699 [2022-01-18 13:26:40,770 INFO L226 Difference]: Without dead ends: 109511 [2022-01-18 13:26:40,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-01-18 13:26:40,770 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 354 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:40,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 606 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 13:26:40,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109511 states. [2022-01-18 13:26:42,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109511 to 82018. [2022-01-18 13:26:43,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82018 states, 82017 states have (on average 4.802894521867418) internal successors, (393919), 82017 states have internal predecessors, (393919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:43,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82018 states to 82018 states and 393919 transitions. [2022-01-18 13:26:43,930 INFO L78 Accepts]: Start accepts. Automaton has 82018 states and 393919 transitions. Word has length 101 [2022-01-18 13:26:43,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:43,931 INFO L470 AbstractCegarLoop]: Abstraction has 82018 states and 393919 transitions. [2022-01-18 13:26:43,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:43,931 INFO L276 IsEmpty]: Start isEmpty. Operand 82018 states and 393919 transitions. [2022-01-18 13:26:44,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:26:44,164 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:44,164 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] [2022-01-18 13:26:44,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 13:26:44,165 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 13:26:44,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:44,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1913085368, now seen corresponding path program 7 times [2022-01-18 13:26:44,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:44,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87407998] [2022-01-18 13:26:44,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:44,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:44,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:44,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:44,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87407998] [2022-01-18 13:26:44,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87407998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:44,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:44,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 13:26:44,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590464838] [2022-01-18 13:26:44,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:44,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:26:44,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:44,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:26:44,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 13:26:44,288 INFO L87 Difference]: Start difference. First operand 82018 states and 393919 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:46,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:46,040 INFO L93 Difference]: Finished difference Result 120061 states and 560917 transitions. [2022-01-18 13:26:46,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 13:26:46,041 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:26:46,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:46,665 INFO L225 Difference]: With dead ends: 120061 [2022-01-18 13:26:46,666 INFO L226 Difference]: Without dead ends: 117151 [2022-01-18 13:26:46,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-01-18 13:26:46,666 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 417 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:46,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 753 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:26:46,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117151 states. [2022-01-18 13:26:49,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117151 to 79872. [2022-01-18 13:26:49,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79872 states, 79871 states have (on average 4.816566713826044) internal successors, (384704), 79871 states have internal predecessors, (384704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:49,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79872 states to 79872 states and 384704 transitions. [2022-01-18 13:26:49,789 INFO L78 Accepts]: Start accepts. Automaton has 79872 states and 384704 transitions. Word has length 101 [2022-01-18 13:26:49,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:49,790 INFO L470 AbstractCegarLoop]: Abstraction has 79872 states and 384704 transitions. [2022-01-18 13:26:49,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:49,790 INFO L276 IsEmpty]: Start isEmpty. Operand 79872 states and 384704 transitions. [2022-01-18 13:26:50,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:26:50,001 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:50,002 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] [2022-01-18 13:26:50,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 13:26:50,002 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 13:26:50,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:50,002 INFO L85 PathProgramCache]: Analyzing trace with hash 740939278, now seen corresponding path program 7 times [2022-01-18 13:26:50,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:50,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526047669] [2022-01-18 13:26:50,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:50,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:50,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:50,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:50,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526047669] [2022-01-18 13:26:50,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526047669] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:50,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:50,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 13:26:50,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798960389] [2022-01-18 13:26:50,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:50,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 13:26:50,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:50,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 13:26:50,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-18 13:26:50,838 INFO L87 Difference]: Start difference. First operand 79872 states and 384704 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:51,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:51,784 INFO L93 Difference]: Finished difference Result 91504 states and 430433 transitions. [2022-01-18 13:26:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 13:26:51,784 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:26:51,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:52,154 INFO L225 Difference]: With dead ends: 91504 [2022-01-18 13:26:52,154 INFO L226 Difference]: Without dead ends: 90442 [2022-01-18 13:26:52,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2022-01-18 13:26:52,155 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 275 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:52,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 602 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:26:52,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90442 states. [2022-01-18 13:26:54,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90442 to 80068. [2022-01-18 13:26:54,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80068 states, 80067 states have (on average 4.815566962668765) internal successors, (385568), 80067 states have internal predecessors, (385568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:55,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80068 states to 80068 states and 385568 transitions. [2022-01-18 13:26:55,061 INFO L78 Accepts]: Start accepts. Automaton has 80068 states and 385568 transitions. Word has length 101 [2022-01-18 13:26:55,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:26:55,062 INFO L470 AbstractCegarLoop]: Abstraction has 80068 states and 385568 transitions. [2022-01-18 13:26:55,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:55,062 INFO L276 IsEmpty]: Start isEmpty. Operand 80068 states and 385568 transitions. [2022-01-18 13:26:55,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:26:55,910 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:26:55,910 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] [2022-01-18 13:26:55,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 13:26:55,911 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 13:26:55,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:26:55,911 INFO L85 PathProgramCache]: Analyzing trace with hash -416865566, now seen corresponding path program 8 times [2022-01-18 13:26:55,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:26:55,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233935226] [2022-01-18 13:26:55,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:26:55,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:26:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:26:56,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:26:56,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:26:56,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233935226] [2022-01-18 13:26:56,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233935226] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:26:56,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:26:56,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 13:26:56,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570425819] [2022-01-18 13:26:56,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:26:56,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 13:26:56,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:26:56,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 13:26:56,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-01-18 13:26:56,191 INFO L87 Difference]: Start difference. First operand 80068 states and 385568 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:26:58,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:26:58,562 INFO L93 Difference]: Finished difference Result 152768 states and 711905 transitions. [2022-01-18 13:26:58,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 13:26:58,563 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:26:58,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:26:59,361 INFO L225 Difference]: With dead ends: 152768 [2022-01-18 13:26:59,361 INFO L226 Difference]: Without dead ends: 151325 [2022-01-18 13:26:59,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2022-01-18 13:26:59,362 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 565 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 13:26:59,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 1844 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 13:26:59,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151325 states. [2022-01-18 13:27:02,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151325 to 85323. [2022-01-18 13:27:02,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85323 states, 85322 states have (on average 4.826902791777033) internal successors, (411841), 85322 states have internal predecessors, (411841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:03,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85323 states to 85323 states and 411841 transitions. [2022-01-18 13:27:03,516 INFO L78 Accepts]: Start accepts. Automaton has 85323 states and 411841 transitions. Word has length 101 [2022-01-18 13:27:03,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:03,516 INFO L470 AbstractCegarLoop]: Abstraction has 85323 states and 411841 transitions. [2022-01-18 13:27:03,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:03,517 INFO L276 IsEmpty]: Start isEmpty. Operand 85323 states and 411841 transitions. [2022-01-18 13:27:03,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:27:03,759 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:03,759 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] [2022-01-18 13:27:03,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 13:27:03,760 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 13:27:03,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:03,760 INFO L85 PathProgramCache]: Analyzing trace with hash 36120766, now seen corresponding path program 9 times [2022-01-18 13:27:03,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:03,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829980159] [2022-01-18 13:27:03,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:03,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:03,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:03,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:03,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829980159] [2022-01-18 13:27:03,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829980159] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:03,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:03,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 13:27:03,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827628296] [2022-01-18 13:27:03,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:03,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 13:27:03,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:03,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 13:27:03,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 13:27:03,951 INFO L87 Difference]: Start difference. First operand 85323 states and 411841 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:06,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:06,154 INFO L93 Difference]: Finished difference Result 175095 states and 814572 transitions. [2022-01-18 13:27:06,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 13:27:06,155 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:27:06,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:07,708 INFO L225 Difference]: With dead ends: 175095 [2022-01-18 13:27:07,708 INFO L226 Difference]: Without dead ends: 173298 [2022-01-18 13:27:07,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-01-18 13:27:07,708 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 487 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:07,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [487 Valid, 1035 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:27:07,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173298 states. [2022-01-18 13:27:11,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173298 to 87777. [2022-01-18 13:27:11,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87777 states, 87776 states have (on average 4.840776522056143) internal successors, (424904), 87776 states have internal predecessors, (424904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:11,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87777 states to 87777 states and 424904 transitions. [2022-01-18 13:27:11,574 INFO L78 Accepts]: Start accepts. Automaton has 87777 states and 424904 transitions. Word has length 101 [2022-01-18 13:27:11,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:11,574 INFO L470 AbstractCegarLoop]: Abstraction has 87777 states and 424904 transitions. [2022-01-18 13:27:11,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:11,574 INFO L276 IsEmpty]: Start isEmpty. Operand 87777 states and 424904 transitions. [2022-01-18 13:27:12,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:27:12,639 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:12,639 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] [2022-01-18 13:27:12,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 13:27:12,639 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 13:27:12,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:12,640 INFO L85 PathProgramCache]: Analyzing trace with hash 917690920, now seen corresponding path program 8 times [2022-01-18 13:27:12,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:12,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122309357] [2022-01-18 13:27:12,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:12,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:12,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:12,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:12,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122309357] [2022-01-18 13:27:12,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122309357] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:12,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:12,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 13:27:12,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427787463] [2022-01-18 13:27:12,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:12,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 13:27:12,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:12,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 13:27:12,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 13:27:12,802 INFO L87 Difference]: Start difference. First operand 87777 states and 424904 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:15,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:15,313 INFO L93 Difference]: Finished difference Result 195705 states and 911727 transitions. [2022-01-18 13:27:15,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 13:27:15,313 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:27:15,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:16,912 INFO L225 Difference]: With dead ends: 195705 [2022-01-18 13:27:16,912 INFO L226 Difference]: Without dead ends: 193635 [2022-01-18 13:27:16,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:27:16,913 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 533 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:16,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [533 Valid, 902 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:27:17,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193635 states. [2022-01-18 13:27:20,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193635 to 92563. [2022-01-18 13:27:20,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92563 states, 92562 states have (on average 4.871621183639074) internal successors, (450927), 92562 states have internal predecessors, (450927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:21,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92563 states to 92563 states and 450927 transitions. [2022-01-18 13:27:21,866 INFO L78 Accepts]: Start accepts. Automaton has 92563 states and 450927 transitions. Word has length 101 [2022-01-18 13:27:21,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:21,866 INFO L470 AbstractCegarLoop]: Abstraction has 92563 states and 450927 transitions. [2022-01-18 13:27:21,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:21,866 INFO L276 IsEmpty]: Start isEmpty. Operand 92563 states and 450927 transitions. [2022-01-18 13:27:22,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:27:22,169 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:22,170 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] [2022-01-18 13:27:22,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 13:27:22,170 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 13:27:22,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:22,170 INFO L85 PathProgramCache]: Analyzing trace with hash -959901590, now seen corresponding path program 9 times [2022-01-18 13:27:22,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:22,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519191926] [2022-01-18 13:27:22,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:22,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:22,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:22,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:22,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519191926] [2022-01-18 13:27:22,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519191926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:22,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:22,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 13:27:22,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114367200] [2022-01-18 13:27:22,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:22,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 13:27:22,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:22,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 13:27:22,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-18 13:27:22,324 INFO L87 Difference]: Start difference. First operand 92563 states and 450927 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:24,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:24,812 INFO L93 Difference]: Finished difference Result 197595 states and 930330 transitions. [2022-01-18 13:27:24,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 13:27:24,812 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:27:24,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:26,618 INFO L225 Difference]: With dead ends: 197595 [2022-01-18 13:27:26,618 INFO L226 Difference]: Without dead ends: 196077 [2022-01-18 13:27:26,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-01-18 13:27:26,619 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 415 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:26,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 1114 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:27:26,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196077 states. [2022-01-18 13:27:30,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196077 to 90233. [2022-01-18 13:27:30,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90233 states, 90232 states have (on average 4.874933504743328) internal successors, (439875), 90232 states have internal predecessors, (439875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:31,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90233 states to 90233 states and 439875 transitions. [2022-01-18 13:27:31,768 INFO L78 Accepts]: Start accepts. Automaton has 90233 states and 439875 transitions. Word has length 101 [2022-01-18 13:27:31,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:31,768 INFO L470 AbstractCegarLoop]: Abstraction has 90233 states and 439875 transitions. [2022-01-18 13:27:31,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:31,768 INFO L276 IsEmpty]: Start isEmpty. Operand 90233 states and 439875 transitions. [2022-01-18 13:27:32,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:27:32,013 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:32,013 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] [2022-01-18 13:27:32,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 13:27:32,014 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 13:27:32,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:32,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1927490498, now seen corresponding path program 10 times [2022-01-18 13:27:32,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:32,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036691609] [2022-01-18 13:27:32,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:32,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:32,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:32,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:32,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036691609] [2022-01-18 13:27:32,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036691609] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:32,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:32,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 13:27:32,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663659363] [2022-01-18 13:27:32,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:32,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:27:32,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:32,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:27:32,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 13:27:32,179 INFO L87 Difference]: Start difference. First operand 90233 states and 439875 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:33,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:33,894 INFO L93 Difference]: Finished difference Result 129107 states and 603619 transitions. [2022-01-18 13:27:33,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 13:27:33,894 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:27:33,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:34,509 INFO L225 Difference]: With dead ends: 129107 [2022-01-18 13:27:34,510 INFO L226 Difference]: Without dead ends: 128195 [2022-01-18 13:27:34,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-01-18 13:27:34,510 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 350 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:34,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 507 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 13:27:34,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128195 states. [2022-01-18 13:27:38,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128195 to 90143. [2022-01-18 13:27:38,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90143 states, 90142 states have (on average 4.875729404717002) internal successors, (439508), 90142 states have internal predecessors, (439508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:39,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90143 states to 90143 states and 439508 transitions. [2022-01-18 13:27:39,485 INFO L78 Accepts]: Start accepts. Automaton has 90143 states and 439508 transitions. Word has length 101 [2022-01-18 13:27:39,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:39,485 INFO L470 AbstractCegarLoop]: Abstraction has 90143 states and 439508 transitions. [2022-01-18 13:27:39,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:39,485 INFO L276 IsEmpty]: Start isEmpty. Operand 90143 states and 439508 transitions. [2022-01-18 13:27:39,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:27:39,785 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:39,785 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] [2022-01-18 13:27:39,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 13:27:39,785 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 13:27:39,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:39,786 INFO L85 PathProgramCache]: Analyzing trace with hash 660852210, now seen corresponding path program 11 times [2022-01-18 13:27:39,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:39,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626831570] [2022-01-18 13:27:39,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:39,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:39,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:39,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:39,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626831570] [2022-01-18 13:27:39,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626831570] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:39,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:39,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 13:27:39,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508409258] [2022-01-18 13:27:39,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:39,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 13:27:39,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:39,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 13:27:39,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 13:27:39,976 INFO L87 Difference]: Start difference. First operand 90143 states and 439508 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:42,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:42,641 INFO L93 Difference]: Finished difference Result 207687 states and 960678 transitions. [2022-01-18 13:27:42,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:27:42,642 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:27:42,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:44,541 INFO L225 Difference]: With dead ends: 207687 [2022-01-18 13:27:44,542 INFO L226 Difference]: Without dead ends: 206211 [2022-01-18 13:27:44,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2022-01-18 13:27:44,542 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 667 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:44,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [667 Valid, 1310 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 13:27:44,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206211 states. [2022-01-18 13:27:49,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206211 to 89898. [2022-01-18 13:27:49,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89898 states, 89897 states have (on average 4.873566414897049) internal successors, (438119), 89897 states have internal predecessors, (438119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:49,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89898 states to 89898 states and 438119 transitions. [2022-01-18 13:27:49,618 INFO L78 Accepts]: Start accepts. Automaton has 89898 states and 438119 transitions. Word has length 101 [2022-01-18 13:27:49,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:27:49,619 INFO L470 AbstractCegarLoop]: Abstraction has 89898 states and 438119 transitions. [2022-01-18 13:27:49,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:49,619 INFO L276 IsEmpty]: Start isEmpty. Operand 89898 states and 438119 transitions. [2022-01-18 13:27:49,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:27:49,860 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:27:49,860 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] [2022-01-18 13:27:49,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 13:27:49,861 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 13:27:49,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:27:49,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1830885146, now seen corresponding path program 11 times [2022-01-18 13:27:49,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:27:49,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918557311] [2022-01-18 13:27:49,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:27:49,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:27:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:27:50,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:27:50,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:27:50,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918557311] [2022-01-18 13:27:50,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918557311] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:27:50,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:27:50,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 13:27:50,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264711658] [2022-01-18 13:27:50,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:27:50,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 13:27:50,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:27:50,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 13:27:50,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 13:27:50,075 INFO L87 Difference]: Start difference. First operand 89898 states and 438119 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:27:54,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:27:54,199 INFO L93 Difference]: Finished difference Result 211338 states and 982459 transitions. [2022-01-18 13:27:54,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 13:27:54,200 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:27:54,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:27:55,414 INFO L225 Difference]: With dead ends: 211338 [2022-01-18 13:27:55,415 INFO L226 Difference]: Without dead ends: 211323 [2022-01-18 13:27:55,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=355, Invalid=1285, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 13:27:55,415 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 599 mSDsluCounter, 2266 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 1566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 13:27:55,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [599 Valid, 2322 Invalid, 1566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1515 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 13:27:56,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211323 states. [2022-01-18 13:27:59,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211323 to 93421. [2022-01-18 13:27:59,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93421 states, 93420 states have (on average 4.879833012202955) internal successors, (455874), 93420 states have internal predecessors, (455874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:01,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93421 states to 93421 states and 455874 transitions. [2022-01-18 13:28:01,028 INFO L78 Accepts]: Start accepts. Automaton has 93421 states and 455874 transitions. Word has length 101 [2022-01-18 13:28:01,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:01,029 INFO L470 AbstractCegarLoop]: Abstraction has 93421 states and 455874 transitions. [2022-01-18 13:28:01,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:01,029 INFO L276 IsEmpty]: Start isEmpty. Operand 93421 states and 455874 transitions. [2022-01-18 13:28:01,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:28:01,317 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:01,317 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] [2022-01-18 13:28:01,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 13:28:01,317 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 13:28:01,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:01,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1950829904, now seen corresponding path program 12 times [2022-01-18 13:28:01,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:01,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896937258] [2022-01-18 13:28:01,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:01,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:01,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:01,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:01,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896937258] [2022-01-18 13:28:01,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896937258] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:01,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:01,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 13:28:01,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060678264] [2022-01-18 13:28:01,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:01,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 13:28:01,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:01,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 13:28:01,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-18 13:28:01,517 INFO L87 Difference]: Start difference. First operand 93421 states and 455874 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:03,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:03,533 INFO L93 Difference]: Finished difference Result 128388 states and 609458 transitions. [2022-01-18 13:28:03,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 13:28:03,534 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:28:03,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:04,188 INFO L225 Difference]: With dead ends: 128388 [2022-01-18 13:28:04,189 INFO L226 Difference]: Without dead ends: 128316 [2022-01-18 13:28:04,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2022-01-18 13:28:04,189 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 427 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:04,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 785 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:28:04,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128316 states. [2022-01-18 13:28:07,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128316 to 93373. [2022-01-18 13:28:07,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93373 states, 93372 states have (on average 4.878528895172) internal successors, (455518), 93372 states have internal predecessors, (455518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:08,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93373 states to 93373 states and 455518 transitions. [2022-01-18 13:28:08,444 INFO L78 Accepts]: Start accepts. Automaton has 93373 states and 455518 transitions. Word has length 101 [2022-01-18 13:28:08,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:08,444 INFO L470 AbstractCegarLoop]: Abstraction has 93373 states and 455518 transitions. [2022-01-18 13:28:08,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:08,444 INFO L276 IsEmpty]: Start isEmpty. Operand 93373 states and 455518 transitions. [2022-01-18 13:28:08,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:28:08,719 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:08,719 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] [2022-01-18 13:28:08,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 13:28:08,719 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 13:28:08,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:08,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1948232730, now seen corresponding path program 12 times [2022-01-18 13:28:08,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:08,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918003222] [2022-01-18 13:28:08,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:08,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:08,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:08,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:08,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918003222] [2022-01-18 13:28:08,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918003222] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:08,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:08,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 13:28:08,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443199672] [2022-01-18 13:28:08,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:08,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:28:08,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:08,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:28:08,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-18 13:28:08,838 INFO L87 Difference]: Start difference. First operand 93373 states and 455518 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:10,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:10,771 INFO L93 Difference]: Finished difference Result 145292 states and 685362 transitions. [2022-01-18 13:28:10,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 13:28:10,771 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:28:10,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:11,492 INFO L225 Difference]: With dead ends: 145292 [2022-01-18 13:28:11,493 INFO L226 Difference]: Without dead ends: 141674 [2022-01-18 13:28:11,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-01-18 13:28:11,493 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 466 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:11,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [466 Valid, 852 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:28:11,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141674 states. [2022-01-18 13:28:14,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141674 to 90671. [2022-01-18 13:28:14,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90671 states, 90670 states have (on average 4.858453733318628) internal successors, (440516), 90670 states have internal predecessors, (440516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:15,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90671 states to 90671 states and 440516 transitions. [2022-01-18 13:28:15,842 INFO L78 Accepts]: Start accepts. Automaton has 90671 states and 440516 transitions. Word has length 101 [2022-01-18 13:28:15,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:15,842 INFO L470 AbstractCegarLoop]: Abstraction has 90671 states and 440516 transitions. [2022-01-18 13:28:15,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:15,842 INFO L276 IsEmpty]: Start isEmpty. Operand 90671 states and 440516 transitions. [2022-01-18 13:28:16,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:28:16,085 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:16,085 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] [2022-01-18 13:28:16,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 13:28:16,085 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 13:28:16,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:16,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1859933654, now seen corresponding path program 13 times [2022-01-18 13:28:16,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:16,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842721901] [2022-01-18 13:28:16,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:16,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:16,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:16,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:16,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842721901] [2022-01-18 13:28:16,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842721901] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:16,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:16,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 13:28:16,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880165166] [2022-01-18 13:28:16,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:16,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 13:28:16,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:16,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 13:28:16,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-01-18 13:28:16,370 INFO L87 Difference]: Start difference. First operand 90671 states and 440516 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:18,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:18,400 INFO L93 Difference]: Finished difference Result 129747 states and 611019 transitions. [2022-01-18 13:28:18,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:28:18,401 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:28:18,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:18,983 INFO L225 Difference]: With dead ends: 129747 [2022-01-18 13:28:18,983 INFO L226 Difference]: Without dead ends: 129306 [2022-01-18 13:28:18,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2022-01-18 13:28:18,984 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 508 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:18,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [508 Valid, 1708 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 13:28:19,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129306 states. [2022-01-18 13:28:22,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129306 to 90057. [2022-01-18 13:28:22,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90057 states, 90056 states have (on average 4.853324598027894) internal successors, (437071), 90056 states have internal predecessors, (437071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:23,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90057 states to 90057 states and 437071 transitions. [2022-01-18 13:28:23,011 INFO L78 Accepts]: Start accepts. Automaton has 90057 states and 437071 transitions. Word has length 101 [2022-01-18 13:28:23,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:23,012 INFO L470 AbstractCegarLoop]: Abstraction has 90057 states and 437071 transitions. [2022-01-18 13:28:23,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:23,012 INFO L276 IsEmpty]: Start isEmpty. Operand 90057 states and 437071 transitions. [2022-01-18 13:28:23,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:28:23,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:23,253 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] [2022-01-18 13:28:23,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 13:28:23,253 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 13:28:23,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:23,254 INFO L85 PathProgramCache]: Analyzing trace with hash 157582780, now seen corresponding path program 10 times [2022-01-18 13:28:23,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:23,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528039945] [2022-01-18 13:28:23,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:23,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:23,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:23,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:23,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528039945] [2022-01-18 13:28:23,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528039945] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:23,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:23,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 13:28:23,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012658104] [2022-01-18 13:28:23,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:23,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 13:28:23,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:23,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 13:28:23,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 13:28:23,402 INFO L87 Difference]: Start difference. First operand 90057 states and 437071 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:26,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:26,672 INFO L93 Difference]: Finished difference Result 237137 states and 1083806 transitions. [2022-01-18 13:28:26,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 13:28:26,673 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:28:26,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:28,016 INFO L225 Difference]: With dead ends: 237137 [2022-01-18 13:28:28,016 INFO L226 Difference]: Without dead ends: 235823 [2022-01-18 13:28:28,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2022-01-18 13:28:28,016 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 707 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:28,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [707 Valid, 1207 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 13:28:28,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235823 states. [2022-01-18 13:28:33,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235823 to 89789. [2022-01-18 13:28:33,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89789 states, 89788 states have (on average 4.850603644139529) internal successors, (435526), 89788 states have internal predecessors, (435526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:33,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89789 states to 89789 states and 435526 transitions. [2022-01-18 13:28:33,940 INFO L78 Accepts]: Start accepts. Automaton has 89789 states and 435526 transitions. Word has length 101 [2022-01-18 13:28:33,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:33,940 INFO L470 AbstractCegarLoop]: Abstraction has 89789 states and 435526 transitions. [2022-01-18 13:28:33,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:33,940 INFO L276 IsEmpty]: Start isEmpty. Operand 89789 states and 435526 transitions. [2022-01-18 13:28:34,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:28:34,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:34,180 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] [2022-01-18 13:28:34,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 13:28:34,180 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 13:28:34,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:34,180 INFO L85 PathProgramCache]: Analyzing trace with hash -419595236, now seen corresponding path program 14 times [2022-01-18 13:28:34,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:34,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903240429] [2022-01-18 13:28:34,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:34,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:34,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:34,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:34,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903240429] [2022-01-18 13:28:34,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903240429] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:34,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:34,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 13:28:34,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082916040] [2022-01-18 13:28:34,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:34,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:28:34,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:34,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:28:34,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 13:28:34,330 INFO L87 Difference]: Start difference. First operand 89789 states and 435526 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:35,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:35,949 INFO L93 Difference]: Finished difference Result 124653 states and 587620 transitions. [2022-01-18 13:28:35,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 13:28:35,949 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:28:35,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:36,520 INFO L225 Difference]: With dead ends: 124653 [2022-01-18 13:28:36,521 INFO L226 Difference]: Without dead ends: 124575 [2022-01-18 13:28:36,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-01-18 13:28:36,521 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 259 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:36,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 648 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 13:28:37,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124575 states. [2022-01-18 13:28:40,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124575 to 89573. [2022-01-18 13:28:40,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89573 states, 89572 states have (on average 4.850589469923637) internal successors, (434477), 89572 states have internal predecessors, (434477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:41,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89573 states to 89573 states and 434477 transitions. [2022-01-18 13:28:41,487 INFO L78 Accepts]: Start accepts. Automaton has 89573 states and 434477 transitions. Word has length 101 [2022-01-18 13:28:41,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:41,487 INFO L470 AbstractCegarLoop]: Abstraction has 89573 states and 434477 transitions. [2022-01-18 13:28:41,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:41,488 INFO L276 IsEmpty]: Start isEmpty. Operand 89573 states and 434477 transitions. [2022-01-18 13:28:41,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:28:41,745 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:41,745 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] [2022-01-18 13:28:41,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 13:28:41,745 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 13:28:41,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:41,746 INFO L85 PathProgramCache]: Analyzing trace with hash -352338302, now seen corresponding path program 11 times [2022-01-18 13:28:41,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:41,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991004338] [2022-01-18 13:28:41,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:41,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:41,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:41,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:41,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991004338] [2022-01-18 13:28:41,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991004338] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:41,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:41,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 13:28:41,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458355672] [2022-01-18 13:28:41,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:41,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 13:28:41,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:41,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 13:28:41,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-18 13:28:41,839 INFO L87 Difference]: Start difference. First operand 89573 states and 434477 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:43,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:43,667 INFO L93 Difference]: Finished difference Result 127775 states and 604463 transitions. [2022-01-18 13:28:43,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 13:28:43,667 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:28:43,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:44,315 INFO L225 Difference]: With dead ends: 127775 [2022-01-18 13:28:44,316 INFO L226 Difference]: Without dead ends: 125132 [2022-01-18 13:28:44,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2022-01-18 13:28:44,316 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 453 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:44,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 858 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:28:44,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125132 states. [2022-01-18 13:28:47,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125132 to 82725. [2022-01-18 13:28:47,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82725 states, 82724 states have (on average 4.84234321357768) internal successors, (400578), 82724 states have internal predecessors, (400578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:47,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82725 states to 82725 states and 400578 transitions. [2022-01-18 13:28:47,594 INFO L78 Accepts]: Start accepts. Automaton has 82725 states and 400578 transitions. Word has length 101 [2022-01-18 13:28:47,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:47,595 INFO L470 AbstractCegarLoop]: Abstraction has 82725 states and 400578 transitions. [2022-01-18 13:28:47,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:47,595 INFO L276 IsEmpty]: Start isEmpty. Operand 82725 states and 400578 transitions. [2022-01-18 13:28:48,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:28:48,511 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:48,511 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] [2022-01-18 13:28:48,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 13:28:48,511 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 13:28:48,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:48,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1860075722, now seen corresponding path program 15 times [2022-01-18 13:28:48,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:48,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369200065] [2022-01-18 13:28:48,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:48,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:48,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:48,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:48,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369200065] [2022-01-18 13:28:48,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369200065] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:48,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:48,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 13:28:48,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801906483] [2022-01-18 13:28:48,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:48,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:28:48,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:48,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:28:48,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 13:28:48,785 INFO L87 Difference]: Start difference. First operand 82725 states and 400578 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:50,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:50,599 INFO L93 Difference]: Finished difference Result 130747 states and 614183 transitions. [2022-01-18 13:28:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 13:28:50,599 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:28:50,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:51,361 INFO L225 Difference]: With dead ends: 130747 [2022-01-18 13:28:51,361 INFO L226 Difference]: Without dead ends: 130024 [2022-01-18 13:28:51,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-01-18 13:28:51,361 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 338 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:51,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 747 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:28:51,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130024 states. [2022-01-18 13:28:54,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130024 to 81225. [2022-01-18 13:28:54,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81225 states, 81224 states have (on average 4.831564562198365) internal successors, (392439), 81224 states have internal predecessors, (392439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:54,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81225 states to 81225 states and 392439 transitions. [2022-01-18 13:28:54,730 INFO L78 Accepts]: Start accepts. Automaton has 81225 states and 392439 transitions. Word has length 101 [2022-01-18 13:28:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:28:54,730 INFO L470 AbstractCegarLoop]: Abstraction has 81225 states and 392439 transitions. [2022-01-18 13:28:54,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 81225 states and 392439 transitions. [2022-01-18 13:28:54,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:28:54,943 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:28:54,943 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] [2022-01-18 13:28:54,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 13:28:54,943 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 13:28:54,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:28:54,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1925832130, now seen corresponding path program 16 times [2022-01-18 13:28:54,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:28:54,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656351078] [2022-01-18 13:28:54,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:28:54,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:28:54,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:28:55,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:28:55,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:28:55,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656351078] [2022-01-18 13:28:55,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656351078] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:28:55,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:28:55,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 13:28:55,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506377268] [2022-01-18 13:28:55,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:28:55,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 13:28:55,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:28:55,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 13:28:55,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 13:28:55,111 INFO L87 Difference]: Start difference. First operand 81225 states and 392439 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:28:58,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:28:58,001 INFO L93 Difference]: Finished difference Result 185660 states and 863743 transitions. [2022-01-18 13:28:58,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 13:28:58,002 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:28:58,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:28:59,009 INFO L225 Difference]: With dead ends: 185660 [2022-01-18 13:28:59,009 INFO L226 Difference]: Without dead ends: 183536 [2022-01-18 13:28:59,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2022-01-18 13:28:59,010 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 589 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 13:28:59,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [589 Valid, 1192 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 13:28:59,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183536 states. [2022-01-18 13:29:03,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183536 to 80901. [2022-01-18 13:29:03,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80901 states, 80900 states have (on average 4.828430160692212) internal successors, (390620), 80900 states have internal predecessors, (390620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:03,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80901 states to 80901 states and 390620 transitions. [2022-01-18 13:29:03,502 INFO L78 Accepts]: Start accepts. Automaton has 80901 states and 390620 transitions. Word has length 101 [2022-01-18 13:29:03,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:03,502 INFO L470 AbstractCegarLoop]: Abstraction has 80901 states and 390620 transitions. [2022-01-18 13:29:03,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:03,502 INFO L276 IsEmpty]: Start isEmpty. Operand 80901 states and 390620 transitions. [2022-01-18 13:29:03,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:29:03,718 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:03,718 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] [2022-01-18 13:29:03,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-18 13:29:03,718 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 13:29:03,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:03,718 INFO L85 PathProgramCache]: Analyzing trace with hash -479684052, now seen corresponding path program 17 times [2022-01-18 13:29:03,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:03,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210419937] [2022-01-18 13:29:03,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:03,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:03,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:03,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:03,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210419937] [2022-01-18 13:29:03,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210419937] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:29:03,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:29:03,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 13:29:03,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074875550] [2022-01-18 13:29:03,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:29:03,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 13:29:03,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:03,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 13:29:03,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-18 13:29:03,890 INFO L87 Difference]: Start difference. First operand 80901 states and 390620 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:05,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:05,503 INFO L93 Difference]: Finished difference Result 113011 states and 534037 transitions. [2022-01-18 13:29:05,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 13:29:05,504 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:29:05,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:06,023 INFO L225 Difference]: With dead ends: 113011 [2022-01-18 13:29:06,023 INFO L226 Difference]: Without dead ends: 112867 [2022-01-18 13:29:06,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2022-01-18 13:29:06,024 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 461 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:06,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 645 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 13:29:06,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112867 states. [2022-01-18 13:29:08,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112867 to 81741. [2022-01-18 13:29:08,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81741 states, 81740 states have (on average 4.825813555174945) internal successors, (394462), 81740 states have internal predecessors, (394462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:09,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81741 states to 81741 states and 394462 transitions. [2022-01-18 13:29:09,850 INFO L78 Accepts]: Start accepts. Automaton has 81741 states and 394462 transitions. Word has length 101 [2022-01-18 13:29:09,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:09,850 INFO L470 AbstractCegarLoop]: Abstraction has 81741 states and 394462 transitions. [2022-01-18 13:29:09,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:09,850 INFO L276 IsEmpty]: Start isEmpty. Operand 81741 states and 394462 transitions. [2022-01-18 13:29:10,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 13:29:10,101 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:10,101 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] [2022-01-18 13:29:10,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-18 13:29:10,102 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 13:29:10,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:10,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1443693090, now seen corresponding path program 18 times [2022-01-18 13:29:10,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:10,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459844155] [2022-01-18 13:29:10,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:10,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:10,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:10,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:10,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459844155] [2022-01-18 13:29:10,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459844155] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 13:29:10,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 13:29:10,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 13:29:10,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012834155] [2022-01-18 13:29:10,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 13:29:10,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 13:29:10,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:10,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 13:29:10,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 13:29:10,197 INFO L87 Difference]: Start difference. First operand 81741 states and 394462 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:11,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:11,720 INFO L93 Difference]: Finished difference Result 97773 states and 467140 transitions. [2022-01-18 13:29:11,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 13:29:11,721 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-18 13:29:11,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:12,287 INFO L225 Difference]: With dead ends: 97773 [2022-01-18 13:29:12,287 INFO L226 Difference]: Without dead ends: 95325 [2022-01-18 13:29:12,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-01-18 13:29:12,288 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 208 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:12,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 489 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 13:29:12,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95325 states. [2022-01-18 13:29:14,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95325 to 78041. [2022-01-18 13:29:14,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78041 states, 78040 states have (on average 4.8091747821629935) internal successors, (375308), 78040 states have internal predecessors, (375308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:15,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78041 states to 78041 states and 375308 transitions. [2022-01-18 13:29:15,386 INFO L78 Accepts]: Start accepts. Automaton has 78041 states and 375308 transitions. Word has length 101 [2022-01-18 13:29:15,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:15,386 INFO L470 AbstractCegarLoop]: Abstraction has 78041 states and 375308 transitions. [2022-01-18 13:29:15,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:15,386 INFO L276 IsEmpty]: Start isEmpty. Operand 78041 states and 375308 transitions. [2022-01-18 13:29:15,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-18 13:29:15,592 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:15,592 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] [2022-01-18 13:29:15,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-18 13:29:15,592 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 13:29:15,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:15,593 INFO L85 PathProgramCache]: Analyzing trace with hash -2016603415, now seen corresponding path program 1 times [2022-01-18 13:29:15,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:15,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352960465] [2022-01-18 13:29:15,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:15,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:15,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:15,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:15,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352960465] [2022-01-18 13:29:15,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352960465] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 13:29:15,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495454427] [2022-01-18 13:29:15,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:15,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 13:29:15,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 13:29:15,884 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 13:29:15,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 13:29:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:16,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-18 13:29:16,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 13:29:25,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:25,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 13:29:26,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:26,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495454427] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 13:29:26,891 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 13:29:26,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 28 [2022-01-18 13:29:26,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734767063] [2022-01-18 13:29:26,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 13:29:26,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 13:29:26,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:26,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 13:29:26,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=616, Unknown=1, NotChecked=0, Total=756 [2022-01-18 13:29:26,893 INFO L87 Difference]: Start difference. First operand 78041 states and 375308 transitions. Second operand has 28 states, 28 states have (on average 6.571428571428571) internal successors, (184), 28 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:38,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:29:38,325 INFO L93 Difference]: Finished difference Result 422315 states and 1933023 transitions. [2022-01-18 13:29:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-01-18 13:29:38,325 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.571428571428571) internal successors, (184), 28 states have internal predecessors, (184), 0 states have call successors, (0), 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 104 [2022-01-18 13:29:38,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:29:41,551 INFO L225 Difference]: With dead ends: 422315 [2022-01-18 13:29:41,552 INFO L226 Difference]: Without dead ends: 396053 [2022-01-18 13:29:41,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 194 SyntacticMatches, 3 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2467 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=1792, Invalid=6217, Unknown=1, NotChecked=0, Total=8010 [2022-01-18 13:29:41,552 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 2028 mSDsluCounter, 5832 mSDsCounter, 0 mSdLazyCounter, 2193 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2028 SdHoareTripleChecker+Valid, 5603 SdHoareTripleChecker+Invalid, 2495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 241 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-01-18 13:29:41,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2028 Valid, 5603 Invalid, 2495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2193 Invalid, 0 Unknown, 241 Unchecked, 3.0s Time] [2022-01-18 13:29:42,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396053 states. [2022-01-18 13:29:50,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396053 to 105008. [2022-01-18 13:29:50,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105008 states, 105007 states have (on average 4.808184216290343) internal successors, (504893), 105007 states have internal predecessors, (504893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:50,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105008 states to 105008 states and 504893 transitions. [2022-01-18 13:29:50,790 INFO L78 Accepts]: Start accepts. Automaton has 105008 states and 504893 transitions. Word has length 104 [2022-01-18 13:29:50,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:29:50,790 INFO L470 AbstractCegarLoop]: Abstraction has 105008 states and 504893 transitions. [2022-01-18 13:29:50,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.571428571428571) internal successors, (184), 28 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:29:50,790 INFO L276 IsEmpty]: Start isEmpty. Operand 105008 states and 504893 transitions. [2022-01-18 13:29:51,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-18 13:29:51,105 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:29:51,105 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] [2022-01-18 13:29:51,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 13:29:51,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 13:29:51,307 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 13:29:51,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:29:51,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1476725079, now seen corresponding path program 1 times [2022-01-18 13:29:51,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:29:51,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112720981] [2022-01-18 13:29:51,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:51,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:29:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:51,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:51,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:29:51,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112720981] [2022-01-18 13:29:51,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112720981] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 13:29:51,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952908084] [2022-01-18 13:29:51,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:29:51,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 13:29:51,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 13:29:51,464 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 13:29:51,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 13:29:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:29:52,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-18 13:29:52,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 13:29:52,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:52,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 13:29:53,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:29:53,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952908084] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 13:29:53,448 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 13:29:53,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 27 [2022-01-18 13:29:53,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673194910] [2022-01-18 13:29:53,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 13:29:53,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-18 13:29:53,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:29:53,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-18 13:29:53,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=582, Unknown=0, NotChecked=0, Total=702 [2022-01-18 13:29:53,450 INFO L87 Difference]: Start difference. First operand 105008 states and 504893 transitions. Second operand has 27 states, 27 states have (on average 7.148148148148148) internal successors, (193), 27 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:21,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 13:30:21,895 INFO L93 Difference]: Finished difference Result 739303 states and 3358250 transitions. [2022-01-18 13:30:21,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 429 states. [2022-01-18 13:30:21,896 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 7.148148148148148) internal successors, (193), 27 states have internal predecessors, (193), 0 states have call successors, (0), 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 104 [2022-01-18 13:30:21,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 13:30:28,055 INFO L225 Difference]: With dead ends: 739303 [2022-01-18 13:30:28,056 INFO L226 Difference]: Without dead ends: 722254 [2022-01-18 13:30:28,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 191 SyntacticMatches, 5 SemanticMatches, 439 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88925 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=25164, Invalid=168876, Unknown=0, NotChecked=0, Total=194040 [2022-01-18 13:30:28,066 INFO L933 BasicCegarLoop]: 819 mSDtfsCounter, 5292 mSDsluCounter, 10708 mSDsCounter, 0 mSdLazyCounter, 5737 mSolverCounterSat, 700 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5292 SdHoareTripleChecker+Valid, 10437 SdHoareTripleChecker+Invalid, 6437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 700 IncrementalHoareTripleChecker+Valid, 5737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-01-18 13:30:28,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5292 Valid, 10437 Invalid, 6437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [700 Valid, 5737 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-01-18 13:30:30,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722254 states. [2022-01-18 13:30:46,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722254 to 159373. [2022-01-18 13:30:47,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159373 states, 159372 states have (on average 4.86358331450945) internal successors, (775119), 159372 states have internal predecessors, (775119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:48,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159373 states to 159373 states and 775119 transitions. [2022-01-18 13:30:48,554 INFO L78 Accepts]: Start accepts. Automaton has 159373 states and 775119 transitions. Word has length 104 [2022-01-18 13:30:48,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 13:30:48,554 INFO L470 AbstractCegarLoop]: Abstraction has 159373 states and 775119 transitions. [2022-01-18 13:30:48,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 7.148148148148148) internal successors, (193), 27 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 13:30:48,554 INFO L276 IsEmpty]: Start isEmpty. Operand 159373 states and 775119 transitions. [2022-01-18 13:30:49,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-18 13:30:49,066 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 13:30:49,066 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] [2022-01-18 13:30:49,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-18 13:30:49,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 13:30:49,267 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 13:30:49,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 13:30:49,267 INFO L85 PathProgramCache]: Analyzing trace with hash -561403401, now seen corresponding path program 2 times [2022-01-18 13:30:49,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 13:30:49,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996866092] [2022-01-18 13:30:49,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 13:30:49,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 13:30:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 13:30:49,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:49,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 13:30:49,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996866092] [2022-01-18 13:30:49,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996866092] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 13:30:49,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288095691] [2022-01-18 13:30:49,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 13:30:49,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 13:30:49,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 13:30:49,544 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 13:30:49,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 13:30:49,641 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 13:30:49,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 13:30:49,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 21 conjunts are in the unsatisfiable core [2022-01-18 13:30:49,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 13:30:50,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:50,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 13:30:51,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 13:30:51,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288095691] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 13:30:51,682 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 13:30:51,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 14] total 38 [2022-01-18 13:30:51,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237674501] [2022-01-18 13:30:51,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 13:30:51,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-01-18 13:30:51,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 13:30:51,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-01-18 13:30:51,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1212, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 13:30:51,684 INFO L87 Difference]: Start difference. First operand 159373 states and 775119 transitions. Second operand has 38 states, 38 states have (on average 5.368421052631579) internal successors, (204), 38 states have internal predecessors, (204), 0 states have call successors, (0), 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 13:34:22,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2049 states. [2022-01-18 13:34:22,245 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 13:34:22,245 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 13:34:22,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2249 GetRequests, 185 SyntacticMatches, 2 SemanticMatches, 2062 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2171420 ImplicationChecksByTransitivity, 151.8s TimeCoverageRelationStatistics Valid=347383, Invalid=3910649, Unknown=0, NotChecked=0, Total=4258032 [2022-01-18 13:34:22,818 INFO L933 BasicCegarLoop]: 1292 mSDtfsCounter, 13113 mSDsluCounter, 25198 mSDsCounter, 0 mSdLazyCounter, 20223 mSolverCounterSat, 2492 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13113 SdHoareTripleChecker+Valid, 23931 SdHoareTripleChecker+Invalid, 22715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2492 IncrementalHoareTripleChecker+Valid, 20223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-01-18 13:34:22,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13113 Valid, 23931 Invalid, 22715 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2492 Valid, 20223 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2022-01-18 13:34:22,819 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-18 13:34:22,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-01-18 13:34:23,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 13:34:23,021 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (159373states) and FLOYD_HOARE automaton (currently 2049 states, 38 states before enhancement),while ReachableStatesComputation was computing reachable states (2214359 states constructed, input type IntersectNwa). [2022-01-18 13:34:23,022 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-01-18 13:34:23,023 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-01-18 13:34:23,023 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-01-18 13:34:23,023 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-01-18 13:34:23,025 INFO L732 BasicCegarLoop]: Path program histogram: [18, 12, 11, 7, 2, 1, 1, 1] [2022-01-18 13:34:23,026 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 13:34:23,027 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 13:34:23,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 01:34:23 BasicIcfg [2022-01-18 13:34:23,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 13:34:23,028 INFO L158 Benchmark]: Toolchain (without parser) took 616356.79ms. Allocated memory was 385.9MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 332.1MB in the beginning and 9.4GB in the end (delta: -9.1GB). Peak memory consumption was 8.6GB. Max. memory is 16.0GB. [2022-01-18 13:34:23,028 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 385.9MB. Free memory is still 348.9MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 13:34:23,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.11ms. Allocated memory was 385.9MB in the beginning and 465.6MB in the end (delta: 79.7MB). Free memory was 332.0MB in the beginning and 438.3MB in the end (delta: -106.4MB). Peak memory consumption was 10.6MB. Max. memory is 16.0GB. [2022-01-18 13:34:23,029 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.61ms. Allocated memory is still 465.6MB. Free memory was 438.3MB in the beginning and 437.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 13:34:23,029 INFO L158 Benchmark]: Boogie Preprocessor took 21.87ms. Allocated memory is still 465.6MB. Free memory was 437.3MB in the beginning and 435.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 13:34:23,029 INFO L158 Benchmark]: RCFGBuilder took 376.74ms. Allocated memory is still 465.6MB. Free memory was 435.2MB in the beginning and 416.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2022-01-18 13:34:23,029 INFO L158 Benchmark]: TraceAbstraction took 615628.43ms. Allocated memory was 465.6MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 416.3MB in the beginning and 9.4GB in the end (delta: -9.0GB). Peak memory consumption was 8.6GB. Max. memory is 16.0GB. [2022-01-18 13:34:23,030 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 385.9MB. Free memory is still 348.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 276.11ms. Allocated memory was 385.9MB in the beginning and 465.6MB in the end (delta: 79.7MB). Free memory was 332.0MB in the beginning and 438.3MB in the end (delta: -106.4MB). Peak memory consumption was 10.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 46.61ms. Allocated memory is still 465.6MB. Free memory was 438.3MB in the beginning and 437.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 21.87ms. Allocated memory is still 465.6MB. Free memory was 437.3MB in the beginning and 435.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 376.74ms. Allocated memory is still 465.6MB. Free memory was 435.2MB in the beginning and 416.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 615628.43ms. Allocated memory was 465.6MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 416.3MB in the beginning and 9.4GB in the end (delta: -9.0GB). Peak memory consumption was 8.6GB. 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: 139]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (159373states) and FLOYD_HOARE automaton (currently 2049 states, 38 states before enhancement),while ReachableStatesComputation was computing reachable states (2214359 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 130]: 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 (159373states) and FLOYD_HOARE automaton (currently 2049 states, 38 states before enhancement),while ReachableStatesComputation was computing reachable states (2214359 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 131]: 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 (159373states) and FLOYD_HOARE automaton (currently 2049 states, 38 states before enhancement),while ReachableStatesComputation was computing reachable states (2214359 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 132]: 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 (159373states) and FLOYD_HOARE automaton (currently 2049 states, 38 states before enhancement),while ReachableStatesComputation was computing reachable states (2214359 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 129]: 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 (159373states) and FLOYD_HOARE automaton (currently 2049 states, 38 states before enhancement),while ReachableStatesComputation was computing reachable states (2214359 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 158 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 615.5s, OverallIterations: 53, TraceHistogramMax: 1, PathProgramHistogramMax: 18, EmptinessCheckTime: 13.7s, AutomataDifference: 380.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37750 SdHoareTripleChecker+Valid, 31.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37750 mSDsluCounter, 79003 SdHoareTripleChecker+Invalid, 26.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 241 IncrementalHoareTripleChecker+Unchecked, 75069 mSDsCounter, 4220 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43898 IncrementalHoareTripleChecker+Invalid, 48359 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4220 mSolverCounterUnsat, 11472 mSDtfsCounter, 43898 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4669 GetRequests, 1475 SyntacticMatches, 19 SemanticMatches, 3175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2264132 ImplicationChecksByTransitivity, 187.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159373occurred in iteration=52, InterpolantAutomatonStates: 1041, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 190.3s AutomataMinimizationTime, 52 MinimizatonAttempts, 3229429 StatesRemovedByMinimization, 51 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 25.3s InterpolantComputationTime, 6072 NumberOfCodeBlocks, 6072 NumberOfCodeBlocksAsserted, 64 NumberOfCheckSat, 6721 ConstructedInterpolants, 9 QuantifiedInterpolants, 40518 SizeOfPredicates, 84 NumberOfNonLiveVariables, 1888 ConjunctsInSsa, 99 ConjunctsInUnsatCore, 67 InterpolantComputations, 50 PerfectInterpolantSequences, 54/74 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 [2022-01-18 13:34:23,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 !ENTRY org.eclipse.osgi 4 0 2022-01-18 13:34:23.290 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/382432137/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/382432137/.metadata/.log.