/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/popl20-counter-determinism.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 12:08:20,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 12:08:20,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 12:08:20,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 12:08:20,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 12:08:20,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 12:08:20,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 12:08:20,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 12:08:20,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 12:08:20,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 12:08:20,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 12:08:20,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 12:08:20,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 12:08:20,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 12:08:20,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 12:08:20,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 12:08:20,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 12:08:20,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 12:08:20,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 12:08:20,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 12:08:20,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 12:08:20,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 12:08:20,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 12:08:20,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 12:08:20,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 12:08:20,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 12:08:20,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 12:08:20,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 12:08:20,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 12:08:20,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 12:08:20,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 12:08:20,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 12:08:20,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 12:08:20,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 12:08:20,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 12:08:20,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 12:08:20,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 12:08:20,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 12:08:20,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 12:08:20,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 12:08:20,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 12:08:20,238 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 12:08:20,262 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 12:08:20,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 12:08:20,262 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 12:08:20,262 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 12:08:20,263 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 12:08:20,263 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 12:08:20,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 12:08:20,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 12:08:20,263 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 12:08:20,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 12:08:20,263 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 12:08:20,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 12:08:20,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 12:08:20,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 12:08:20,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 12:08:20,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 12:08:20,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 12:08:20,264 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 12:08:20,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 12:08:20,264 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 12:08:20,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 12:08:20,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 12:08:20,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 12:08:20,264 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 12:08:20,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 12:08:20,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 12:08:20,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 12:08:20,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 12:08:20,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 12:08:20,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 12:08:20,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 12:08:20,265 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 12:08:20,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 12:08:20,265 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 12:08:20,265 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 12:08:20,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 12:08:20,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 12:08:20,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 12:08:20,433 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 12:08:20,434 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 12:08:20,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-counter-determinism.wvr.c [2022-01-18 12:08:20,488 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27d386300/a77e0c8ca0664242b34ff9c349dee652/FLAG163be3881 [2022-01-18 12:08:20,826 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 12:08:20,826 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-counter-determinism.wvr.c [2022-01-18 12:08:20,830 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27d386300/a77e0c8ca0664242b34ff9c349dee652/FLAG163be3881 [2022-01-18 12:08:20,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27d386300/a77e0c8ca0664242b34ff9c349dee652 [2022-01-18 12:08:20,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 12:08:20,840 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 12:08:20,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 12:08:20,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 12:08:20,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 12:08:20,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 12:08:20" (1/1) ... [2022-01-18 12:08:20,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a9f4c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:08:20, skipping insertion in model container [2022-01-18 12:08:20,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 12:08:20" (1/1) ... [2022-01-18 12:08:20,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 12:08:20,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 12:08:20,987 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/popl20-counter-determinism.wvr.c[2476,2489] [2022-01-18 12:08:20,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 12:08:20,995 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 12:08:21,008 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/popl20-counter-determinism.wvr.c[2476,2489] [2022-01-18 12:08:21,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 12:08:21,018 INFO L208 MainTranslator]: Completed translation [2022-01-18 12:08:21,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:08:21 WrapperNode [2022-01-18 12:08:21,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 12:08:21,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 12:08:21,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 12:08:21,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 12:08:21,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:08:21" (1/1) ... [2022-01-18 12:08:21,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:08:21" (1/1) ... [2022-01-18 12:08:21,056 INFO L137 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 116 [2022-01-18 12:08:21,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 12:08:21,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 12:08:21,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 12:08:21,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 12:08:21,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:08:21" (1/1) ... [2022-01-18 12:08:21,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:08:21" (1/1) ... [2022-01-18 12:08:21,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:08:21" (1/1) ... [2022-01-18 12:08:21,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:08:21" (1/1) ... [2022-01-18 12:08:21,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:08:21" (1/1) ... [2022-01-18 12:08:21,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:08:21" (1/1) ... [2022-01-18 12:08:21,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:08:21" (1/1) ... [2022-01-18 12:08:21,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 12:08:21,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 12:08:21,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 12:08:21,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 12:08:21,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:08:21" (1/1) ... [2022-01-18 12:08:21,093 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 12:08:21,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:08:21,110 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 12:08:21,130 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 12:08:21,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 12:08:21,149 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 12:08:21,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 12:08:21,149 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 12:08:21,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 12:08:21,149 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 12:08:21,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 12:08:21,150 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 12:08:21,150 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 12:08:21,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 12:08:21,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 12:08:21,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 12:08:21,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 12:08:21,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 12:08:21,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 12:08:21,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 12:08:21,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 12:08:21,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 12:08:21,151 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 12:08:21,202 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 12:08:21,203 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 12:08:21,371 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 12:08:21,407 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 12:08:21,407 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-18 12:08:21,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 12:08:21 BoogieIcfgContainer [2022-01-18 12:08:21,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 12:08:21,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 12:08:21,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 12:08:21,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 12:08:21,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 12:08:20" (1/3) ... [2022-01-18 12:08:21,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2640647f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 12:08:21, skipping insertion in model container [2022-01-18 12:08:21,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:08:21" (2/3) ... [2022-01-18 12:08:21,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2640647f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 12:08:21, skipping insertion in model container [2022-01-18 12:08:21,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 12:08:21" (3/3) ... [2022-01-18 12:08:21,413 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-counter-determinism.wvr.c [2022-01-18 12:08:21,416 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 12:08:21,417 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 12:08:21,417 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 12:08:21,417 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 12:08:21,443 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,443 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,443 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,443 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,444 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,444 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,444 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,444 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,444 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,444 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,444 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,445 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,445 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,445 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,445 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,445 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,445 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,445 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,445 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,446 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,446 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,446 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,446 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,446 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,447 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,448 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,449 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,450 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,450 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,450 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,450 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,450 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,450 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,450 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,451 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,451 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,452 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,452 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,452 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,452 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,452 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,453 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,453 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,453 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,453 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,453 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,453 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,454 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,454 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,454 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,454 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,454 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,454 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,454 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,454 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,455 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,455 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,455 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,455 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,455 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,455 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,455 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,456 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,456 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,456 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,456 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,456 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,456 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,458 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,458 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,458 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,459 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,459 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,459 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,459 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,459 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,460 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,460 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,460 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,460 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,460 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,460 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,460 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,461 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,461 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,462 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,462 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,462 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 12:08:21,465 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 12:08:21,493 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 12:08:21,498 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 12:08:21,499 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 12:08:21,506 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 128 places, 124 transitions, 280 flow [2022-01-18 12:08:22,682 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 33651 states, 33650 states have (on average 4.972095096582467) internal successors, (167311), 33650 states have internal predecessors, (167311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:22,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 33651 states, 33650 states have (on average 4.972095096582467) internal successors, (167311), 33650 states have internal predecessors, (167311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:23,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-18 12:08:23,048 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:08:23,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:08:23,049 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 12:08:23,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:08:23,057 INFO L85 PathProgramCache]: Analyzing trace with hash 741099381, now seen corresponding path program 1 times [2022-01-18 12:08:23,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:08:23,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742772673] [2022-01-18 12:08:23,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:08:23,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:08:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:08:23,287 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 12:08:23,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:08:23,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742772673] [2022-01-18 12:08:23,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742772673] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:08:23,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:08:23,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 12:08:23,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689399683] [2022-01-18 12:08:23,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:08:23,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 12:08:23,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:08:23,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 12:08:23,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 12:08:23,358 INFO L87 Difference]: Start difference. First operand has 33651 states, 33650 states have (on average 4.972095096582467) internal successors, (167311), 33650 states have internal predecessors, (167311), 0 states have call successors, (0), 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 40.5) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:23,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:08:23,848 INFO L93 Difference]: Finished difference Result 33651 states and 153288 transitions. [2022-01-18 12:08:23,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 12:08:23,849 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-01-18 12:08:23,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:08:24,157 INFO L225 Difference]: With dead ends: 33651 [2022-01-18 12:08:24,157 INFO L226 Difference]: Without dead ends: 33650 [2022-01-18 12:08:24,158 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 12:08:24,163 INFO L933 BasicCegarLoop]: 90 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, 90 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 12:08:24,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:08:24,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33650 states. [2022-01-18 12:08:25,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33650 to 33650. [2022-01-18 12:08:25,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33650 states, 33649 states have (on average 4.555469701922791) internal successors, (153287), 33649 states have internal predecessors, (153287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:25,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33650 states to 33650 states and 153287 transitions. [2022-01-18 12:08:25,527 INFO L78 Accepts]: Start accepts. Automaton has 33650 states and 153287 transitions. Word has length 81 [2022-01-18 12:08:25,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:08:25,527 INFO L470 AbstractCegarLoop]: Abstraction has 33650 states and 153287 transitions. [2022-01-18 12:08:25,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:25,527 INFO L276 IsEmpty]: Start isEmpty. Operand 33650 states and 153287 transitions. [2022-01-18 12:08:25,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-18 12:08:25,660 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:08:25,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:08:25,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 12:08:25,661 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 12:08:25,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:08:25,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1887062473, now seen corresponding path program 1 times [2022-01-18 12:08:25,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:08:25,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983813233] [2022-01-18 12:08:25,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:08:25,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:08:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:08:25,848 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 12:08:25,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:08:25,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983813233] [2022-01-18 12:08:25,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983813233] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:08:25,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:08:25,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:08:25,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580251901] [2022-01-18 12:08:25,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:08:25,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:08:25,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:08:25,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:08:25,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:08:25,853 INFO L87 Difference]: Start difference. First operand 33650 states and 153287 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:26,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:08:26,558 INFO L93 Difference]: Finished difference Result 51344 states and 228410 transitions. [2022-01-18 12:08:26,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:08:26,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-01-18 12:08:26,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:08:26,811 INFO L225 Difference]: With dead ends: 51344 [2022-01-18 12:08:26,811 INFO L226 Difference]: Without dead ends: 47756 [2022-01-18 12:08:26,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-18 12:08:26,813 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 134 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:08:26,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 440 Invalid, 78 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:08:26,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47756 states. [2022-01-18 12:08:28,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47756 to 40946. [2022-01-18 12:08:28,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40946 states, 40945 states have (on average 4.5106850653315425) internal successors, (184690), 40945 states have internal predecessors, (184690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:28,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40946 states to 40946 states and 184690 transitions. [2022-01-18 12:08:28,302 INFO L78 Accepts]: Start accepts. Automaton has 40946 states and 184690 transitions. Word has length 81 [2022-01-18 12:08:28,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:08:28,302 INFO L470 AbstractCegarLoop]: Abstraction has 40946 states and 184690 transitions. [2022-01-18 12:08:28,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:28,303 INFO L276 IsEmpty]: Start isEmpty. Operand 40946 states and 184690 transitions. [2022-01-18 12:08:28,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 12:08:28,678 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:08:28,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:08:28,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 12:08:28,679 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 12:08:28,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:08:28,680 INFO L85 PathProgramCache]: Analyzing trace with hash 100647351, now seen corresponding path program 1 times [2022-01-18 12:08:28,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:08:28,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892210460] [2022-01-18 12:08:28,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:08:28,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:08:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:08:28,833 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 12:08:28,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:08:28,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892210460] [2022-01-18 12:08:28,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892210460] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:08:28,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:08:28,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:08:28,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260052872] [2022-01-18 12:08:28,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:08:28,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:08:28,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:08:28,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:08:28,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:08:28,835 INFO L87 Difference]: Start difference. First operand 40946 states and 184690 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:29,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:08:29,249 INFO L93 Difference]: Finished difference Result 54404 states and 243172 transitions. [2022-01-18 12:08:29,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:08:29,249 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-18 12:08:29,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:08:29,567 INFO L225 Difference]: With dead ends: 54404 [2022-01-18 12:08:29,567 INFO L226 Difference]: Without dead ends: 53180 [2022-01-18 12:08:29,567 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 12:08:29,568 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 159 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:08:29,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 423 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:08:30,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53180 states. [2022-01-18 12:08:30,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53180 to 40280. [2022-01-18 12:08:30,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40280 states, 40279 states have (on average 4.5210655676655325) internal successors, (182104), 40279 states have internal predecessors, (182104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:31,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40280 states to 40280 states and 182104 transitions. [2022-01-18 12:08:31,099 INFO L78 Accepts]: Start accepts. Automaton has 40280 states and 182104 transitions. Word has length 86 [2022-01-18 12:08:31,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:08:31,100 INFO L470 AbstractCegarLoop]: Abstraction has 40280 states and 182104 transitions. [2022-01-18 12:08:31,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:31,100 INFO L276 IsEmpty]: Start isEmpty. Operand 40280 states and 182104 transitions. [2022-01-18 12:08:31,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 12:08:31,192 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:08:31,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:08:31,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 12:08:31,193 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 12:08:31,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:08:31,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1556135173, now seen corresponding path program 1 times [2022-01-18 12:08:31,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:08:31,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116620689] [2022-01-18 12:08:31,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:08:31,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:08:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:08:31,294 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 12:08:31,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:08:31,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116620689] [2022-01-18 12:08:31,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116620689] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:08:31,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081262472] [2022-01-18 12:08:31,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:08:31,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:08:31,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:08:31,296 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 12:08:31,297 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 12:08:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:08:31,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-18 12:08:31,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:08:31,547 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 12:08:31,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:08:31,663 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 12:08:31,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081262472] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:08:31,664 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:08:31,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-01-18 12:08:31,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068275182] [2022-01-18 12:08:31,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:08:31,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 12:08:31,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:08:31,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 12:08:31,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-18 12:08:31,668 INFO L87 Difference]: Start difference. First operand 40280 states and 182104 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:32,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:08:32,701 INFO L93 Difference]: Finished difference Result 70244 states and 317212 transitions. [2022-01-18 12:08:32,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 12:08:32,701 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 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 86 [2022-01-18 12:08:32,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:08:33,008 INFO L225 Difference]: With dead ends: 70244 [2022-01-18 12:08:33,008 INFO L226 Difference]: Without dead ends: 70244 [2022-01-18 12:08:33,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 168 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-01-18 12:08:33,009 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 401 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 12:08:33,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 1021 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 12:08:33,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70244 states. [2022-01-18 12:08:34,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70244 to 43574. [2022-01-18 12:08:34,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43574 states, 43573 states have (on average 4.528148165148142) internal successors, (197305), 43573 states have internal predecessors, (197305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:34,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43574 states to 43574 states and 197305 transitions. [2022-01-18 12:08:34,801 INFO L78 Accepts]: Start accepts. Automaton has 43574 states and 197305 transitions. Word has length 86 [2022-01-18 12:08:34,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:08:34,802 INFO L470 AbstractCegarLoop]: Abstraction has 43574 states and 197305 transitions. [2022-01-18 12:08:34,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:34,802 INFO L276 IsEmpty]: Start isEmpty. Operand 43574 states and 197305 transitions. [2022-01-18 12:08:34,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 12:08:34,904 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:08:34,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:08:34,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 12:08:35,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:08:35,105 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 12:08:35,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:08:35,106 INFO L85 PathProgramCache]: Analyzing trace with hash 818687697, now seen corresponding path program 2 times [2022-01-18 12:08:35,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:08:35,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927985903] [2022-01-18 12:08:35,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:08:35,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:08:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:08:35,158 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 12:08:35,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:08:35,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927985903] [2022-01-18 12:08:35,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927985903] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:08:35,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:08:35,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:08:35,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701962493] [2022-01-18 12:08:35,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:08:35,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:08:35,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:08:35,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:08:35,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:08:35,159 INFO L87 Difference]: Start difference. First operand 43574 states and 197305 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:36,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:08:36,105 INFO L93 Difference]: Finished difference Result 78128 states and 347527 transitions. [2022-01-18 12:08:36,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:08:36,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-18 12:08:36,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:08:36,440 INFO L225 Difference]: With dead ends: 78128 [2022-01-18 12:08:36,440 INFO L226 Difference]: Without dead ends: 77030 [2022-01-18 12:08:36,440 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 12:08:36,441 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 215 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:08:36,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 481 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:08:36,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77030 states. [2022-01-18 12:08:37,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77030 to 43754. [2022-01-18 12:08:38,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43754 states, 43753 states have (on average 4.527209562772838) internal successors, (198079), 43753 states have internal predecessors, (198079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:38,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43754 states to 43754 states and 198079 transitions. [2022-01-18 12:08:38,560 INFO L78 Accepts]: Start accepts. Automaton has 43754 states and 198079 transitions. Word has length 86 [2022-01-18 12:08:38,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:08:38,561 INFO L470 AbstractCegarLoop]: Abstraction has 43754 states and 198079 transitions. [2022-01-18 12:08:38,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:38,561 INFO L276 IsEmpty]: Start isEmpty. Operand 43754 states and 198079 transitions. [2022-01-18 12:08:38,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 12:08:38,703 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:08:38,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:08:38,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 12:08:38,704 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 12:08:38,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:08:38,704 INFO L85 PathProgramCache]: Analyzing trace with hash -691215523, now seen corresponding path program 2 times [2022-01-18 12:08:38,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:08:38,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964100116] [2022-01-18 12:08:38,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:08:38,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:08:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:08:38,746 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 12:08:38,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:08:38,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964100116] [2022-01-18 12:08:38,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964100116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:08:38,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:08:38,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:08:38,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104630608] [2022-01-18 12:08:38,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:08:38,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:08:38,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:08:38,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:08:38,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:08:38,748 INFO L87 Difference]: Start difference. First operand 43754 states and 198079 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:39,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:08:39,181 INFO L93 Difference]: Finished difference Result 62162 states and 280021 transitions. [2022-01-18 12:08:39,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:08:39,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-18 12:08:39,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:08:39,425 INFO L225 Difference]: With dead ends: 62162 [2022-01-18 12:08:39,425 INFO L226 Difference]: Without dead ends: 62162 [2022-01-18 12:08:39,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:08:39,426 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 125 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:08:39,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 405 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:08:39,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62162 states. [2022-01-18 12:08:40,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62162 to 45260. [2022-01-18 12:08:41,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45260 states, 45259 states have (on average 4.529110232219006) internal successors, (204983), 45259 states have internal predecessors, (204983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:41,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45260 states to 45260 states and 204983 transitions. [2022-01-18 12:08:41,419 INFO L78 Accepts]: Start accepts. Automaton has 45260 states and 204983 transitions. Word has length 86 [2022-01-18 12:08:41,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:08:41,419 INFO L470 AbstractCegarLoop]: Abstraction has 45260 states and 204983 transitions. [2022-01-18 12:08:41,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:41,419 INFO L276 IsEmpty]: Start isEmpty. Operand 45260 states and 204983 transitions. [2022-01-18 12:08:41,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 12:08:41,534 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:08:41,534 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:08:41,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 12:08:41,534 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 12:08:41,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:08:41,534 INFO L85 PathProgramCache]: Analyzing trace with hash 538899771, now seen corresponding path program 3 times [2022-01-18 12:08:41,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:08:41,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632690669] [2022-01-18 12:08:41,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:08:41,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:08:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:08:41,590 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 12:08:41,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:08:41,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632690669] [2022-01-18 12:08:41,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632690669] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:08:41,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:08:41,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:08:41,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39978369] [2022-01-18 12:08:41,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:08:41,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:08:41,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:08:41,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:08:41,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:08:41,591 INFO L87 Difference]: Start difference. First operand 45260 states and 204983 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:42,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:08:42,633 INFO L93 Difference]: Finished difference Result 75338 states and 340393 transitions. [2022-01-18 12:08:42,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:08:42,634 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-18 12:08:42,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:08:43,055 INFO L225 Difference]: With dead ends: 75338 [2022-01-18 12:08:43,056 INFO L226 Difference]: Without dead ends: 75338 [2022-01-18 12:08:43,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:08:43,057 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 201 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:08:43,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 466 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:08:43,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75338 states. [2022-01-18 12:08:44,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75338 to 44324. [2022-01-18 12:08:44,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44324 states, 44323 states have (on average 4.528100534711098) internal successors, (200699), 44323 states have internal predecessors, (200699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:44,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44324 states to 44324 states and 200699 transitions. [2022-01-18 12:08:44,934 INFO L78 Accepts]: Start accepts. Automaton has 44324 states and 200699 transitions. Word has length 86 [2022-01-18 12:08:44,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:08:44,934 INFO L470 AbstractCegarLoop]: Abstraction has 44324 states and 200699 transitions. [2022-01-18 12:08:44,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:44,934 INFO L276 IsEmpty]: Start isEmpty. Operand 44324 states and 200699 transitions. [2022-01-18 12:08:45,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 12:08:45,044 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:08:45,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:08:45,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 12:08:45,044 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 12:08:45,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:08:45,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1869302141, now seen corresponding path program 3 times [2022-01-18 12:08:45,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:08:45,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734668460] [2022-01-18 12:08:45,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:08:45,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:08:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:08:45,095 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 12:08:45,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:08:45,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734668460] [2022-01-18 12:08:45,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734668460] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:08:45,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:08:45,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:08:45,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355764475] [2022-01-18 12:08:45,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:08:45,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:08:45,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:08:45,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:08:45,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:08:45,097 INFO L87 Difference]: Start difference. First operand 44324 states and 200699 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:46,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:08:46,453 INFO L93 Difference]: Finished difference Result 110492 states and 494187 transitions. [2022-01-18 12:08:46,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:08:46,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-18 12:08:46,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:08:46,995 INFO L225 Difference]: With dead ends: 110492 [2022-01-18 12:08:46,995 INFO L226 Difference]: Without dead ends: 108854 [2022-01-18 12:08:46,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:08:46,996 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 221 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:08:46,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 616 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:08:47,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108854 states. [2022-01-18 12:08:49,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108854 to 50864. [2022-01-18 12:08:49,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50864 states, 50863 states have (on average 4.565263551107878) internal successors, (232203), 50863 states have internal predecessors, (232203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:49,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50864 states to 50864 states and 232203 transitions. [2022-01-18 12:08:49,982 INFO L78 Accepts]: Start accepts. Automaton has 50864 states and 232203 transitions. Word has length 86 [2022-01-18 12:08:49,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:08:49,983 INFO L470 AbstractCegarLoop]: Abstraction has 50864 states and 232203 transitions. [2022-01-18 12:08:49,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:49,987 INFO L276 IsEmpty]: Start isEmpty. Operand 50864 states and 232203 transitions. [2022-01-18 12:08:50,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 12:08:50,141 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:08:50,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:08:50,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 12:08:50,141 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 12:08:50,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:08:50,142 INFO L85 PathProgramCache]: Analyzing trace with hash 926791667, now seen corresponding path program 4 times [2022-01-18 12:08:50,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:08:50,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702160057] [2022-01-18 12:08:50,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:08:50,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:08:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:08:50,202 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 12:08:50,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:08:50,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702160057] [2022-01-18 12:08:50,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702160057] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:08:50,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:08:50,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:08:50,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059881180] [2022-01-18 12:08:50,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:08:50,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:08:50,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:08:50,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:08:50,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:08:50,204 INFO L87 Difference]: Start difference. First operand 50864 states and 232203 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:51,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:08:51,591 INFO L93 Difference]: Finished difference Result 98039 states and 439870 transitions. [2022-01-18 12:08:51,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:08:51,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-18 12:08:51,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:08:52,041 INFO L225 Difference]: With dead ends: 98039 [2022-01-18 12:08:52,041 INFO L226 Difference]: Without dead ends: 96473 [2022-01-18 12:08:52,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 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 12:08:52,042 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 168 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:08:52,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 506 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:08:52,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96473 states. [2022-01-18 12:08:54,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96473 to 52970. [2022-01-18 12:08:54,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52970 states, 52969 states have (on average 4.54828295795654) internal successors, (240918), 52969 states have internal predecessors, (240918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:54,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52970 states to 52970 states and 240918 transitions. [2022-01-18 12:08:54,769 INFO L78 Accepts]: Start accepts. Automaton has 52970 states and 240918 transitions. Word has length 86 [2022-01-18 12:08:54,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:08:54,769 INFO L470 AbstractCegarLoop]: Abstraction has 52970 states and 240918 transitions. [2022-01-18 12:08:54,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:54,769 INFO L276 IsEmpty]: Start isEmpty. Operand 52970 states and 240918 transitions. [2022-01-18 12:08:54,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 12:08:54,919 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:08:54,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:08:54,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 12:08:54,920 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 12:08:54,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:08:54,920 INFO L85 PathProgramCache]: Analyzing trace with hash 478926261, now seen corresponding path program 5 times [2022-01-18 12:08:54,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:08:54,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634638250] [2022-01-18 12:08:54,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:08:54,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:08:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:08:54,952 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 12:08:54,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:08:54,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634638250] [2022-01-18 12:08:54,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634638250] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:08:54,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:08:54,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:08:54,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719073158] [2022-01-18 12:08:54,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:08:54,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:08:54,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:08:54,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:08:54,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:08:54,953 INFO L87 Difference]: Start difference. First operand 52970 states and 240918 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:56,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:08:56,143 INFO L93 Difference]: Finished difference Result 85505 states and 383511 transitions. [2022-01-18 12:08:56,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:08:56,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-18 12:08:56,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:08:56,604 INFO L225 Difference]: With dead ends: 85505 [2022-01-18 12:08:56,605 INFO L226 Difference]: Without dead ends: 82607 [2022-01-18 12:08:56,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 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 12:08:56,605 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 188 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:08:56,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 431 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:08:56,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82607 states. [2022-01-18 12:08:58,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82607 to 52790. [2022-01-18 12:08:58,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52790 states, 52789 states have (on average 4.539468449866449) internal successors, (239634), 52789 states have internal predecessors, (239634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:58,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52790 states to 52790 states and 239634 transitions. [2022-01-18 12:08:58,636 INFO L78 Accepts]: Start accepts. Automaton has 52790 states and 239634 transitions. Word has length 86 [2022-01-18 12:08:58,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:08:58,636 INFO L470 AbstractCegarLoop]: Abstraction has 52790 states and 239634 transitions. [2022-01-18 12:08:58,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:08:58,636 INFO L276 IsEmpty]: Start isEmpty. Operand 52790 states and 239634 transitions. [2022-01-18 12:08:58,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 12:08:58,785 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:08:58,785 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] [2022-01-18 12:08:58,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 12:08:58,785 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 12:08:58,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:08:58,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1260315515, now seen corresponding path program 6 times [2022-01-18 12:08:58,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:08:58,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984855836] [2022-01-18 12:08:58,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:08:58,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:08:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:08:58,837 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 12:08:58,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:08:58,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984855836] [2022-01-18 12:08:58,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984855836] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:08:58,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:08:58,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:08:58,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328651141] [2022-01-18 12:08:58,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:08:58,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:08:58,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:08:58,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:08:58,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:08:58,839 INFO L87 Difference]: Start difference. First operand 52790 states and 239634 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:00,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:09:00,141 INFO L93 Difference]: Finished difference Result 100238 states and 453654 transitions. [2022-01-18 12:09:00,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:09:00,146 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-18 12:09:00,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:09:00,616 INFO L225 Difference]: With dead ends: 100238 [2022-01-18 12:09:00,616 INFO L226 Difference]: Without dead ends: 98600 [2022-01-18 12:09:00,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:09:00,617 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 210 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:09:00,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 466 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:09:00,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98600 states. [2022-01-18 12:09:02,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98600 to 54893. [2022-01-18 12:09:03,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54893 states, 54892 states have (on average 4.540315528674488) internal successors, (249227), 54892 states have internal predecessors, (249227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:03,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54893 states to 54893 states and 249227 transitions. [2022-01-18 12:09:03,299 INFO L78 Accepts]: Start accepts. Automaton has 54893 states and 249227 transitions. Word has length 86 [2022-01-18 12:09:03,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:09:03,299 INFO L470 AbstractCegarLoop]: Abstraction has 54893 states and 249227 transitions. [2022-01-18 12:09:03,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:03,300 INFO L276 IsEmpty]: Start isEmpty. Operand 54893 states and 249227 transitions. [2022-01-18 12:09:03,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 12:09:03,442 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:09:03,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:09:03,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 12:09:03,442 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 12:09:03,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:09:03,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1792750199, now seen corresponding path program 7 times [2022-01-18 12:09:03,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:09:03,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422473859] [2022-01-18 12:09:03,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:09:03,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:09:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:09:03,489 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 12:09:03,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:09:03,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422473859] [2022-01-18 12:09:03,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422473859] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:09:03,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:09:03,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:09:03,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124468344] [2022-01-18 12:09:03,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:09:03,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:09:03,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:09:03,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:09:03,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:09:03,491 INFO L87 Difference]: Start difference. First operand 54893 states and 249227 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:04,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:09:04,538 INFO L93 Difference]: Finished difference Result 77150 states and 348494 transitions. [2022-01-18 12:09:04,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:09:04,539 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-18 12:09:04,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:09:04,898 INFO L225 Difference]: With dead ends: 77150 [2022-01-18 12:09:04,898 INFO L226 Difference]: Without dead ends: 77150 [2022-01-18 12:09:04,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:09:04,898 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 151 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:09:04,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 708 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:09:05,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77150 states. [2022-01-18 12:09:06,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77150 to 56009. [2022-01-18 12:09:06,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56009 states, 56008 states have (on average 4.544350807027567) internal successors, (254520), 56008 states have internal predecessors, (254520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:06,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56009 states to 56009 states and 254520 transitions. [2022-01-18 12:09:06,722 INFO L78 Accepts]: Start accepts. Automaton has 56009 states and 254520 transitions. Word has length 86 [2022-01-18 12:09:06,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:09:06,722 INFO L470 AbstractCegarLoop]: Abstraction has 56009 states and 254520 transitions. [2022-01-18 12:09:06,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:06,723 INFO L276 IsEmpty]: Start isEmpty. Operand 56009 states and 254520 transitions. [2022-01-18 12:09:06,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 12:09:06,863 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:09:06,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:09:06,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 12:09:06,864 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 12:09:06,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:09:06,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1571446077, now seen corresponding path program 4 times [2022-01-18 12:09:06,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:09:06,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41276204] [2022-01-18 12:09:06,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:09:06,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:09:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:09:06,897 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 12:09:06,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:09:06,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41276204] [2022-01-18 12:09:06,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41276204] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:09:06,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:09:06,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:09:06,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92169126] [2022-01-18 12:09:06,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:09:06,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:09:06,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:09:06,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:09:06,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:09:06,899 INFO L87 Difference]: Start difference. First operand 56009 states and 254520 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:07,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:09:07,949 INFO L93 Difference]: Finished difference Result 93608 states and 421800 transitions. [2022-01-18 12:09:07,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:09:07,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-18 12:09:07,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:09:08,341 INFO L225 Difference]: With dead ends: 93608 [2022-01-18 12:09:08,342 INFO L226 Difference]: Without dead ends: 93608 [2022-01-18 12:09:08,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:09:08,342 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 151 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:09:08,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 386 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:09:08,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93608 states. [2022-01-18 12:09:10,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93608 to 58043. [2022-01-18 12:09:10,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58043 states, 58042 states have (on average 4.537989731573688) internal successors, (263394), 58042 states have internal predecessors, (263394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:10,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58043 states to 58043 states and 263394 transitions. [2022-01-18 12:09:10,951 INFO L78 Accepts]: Start accepts. Automaton has 58043 states and 263394 transitions. Word has length 86 [2022-01-18 12:09:10,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:09:10,952 INFO L470 AbstractCegarLoop]: Abstraction has 58043 states and 263394 transitions. [2022-01-18 12:09:10,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:10,952 INFO L276 IsEmpty]: Start isEmpty. Operand 58043 states and 263394 transitions. [2022-01-18 12:09:11,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 12:09:11,111 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:09:11,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:09:11,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 12:09:11,112 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 12:09:11,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:09:11,112 INFO L85 PathProgramCache]: Analyzing trace with hash -341330783, now seen corresponding path program 5 times [2022-01-18 12:09:11,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:09:11,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951291357] [2022-01-18 12:09:11,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:09:11,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:09:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:09:11,149 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 12:09:11,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:09:11,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951291357] [2022-01-18 12:09:11,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951291357] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:09:11,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:09:11,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:09:11,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125994095] [2022-01-18 12:09:11,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:09:11,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:09:11,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:09:11,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:09:11,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:09:11,150 INFO L87 Difference]: Start difference. First operand 58043 states and 263394 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:12,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:09:12,320 INFO L93 Difference]: Finished difference Result 91238 states and 407423 transitions. [2022-01-18 12:09:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:09:12,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-18 12:09:12,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:09:12,759 INFO L225 Difference]: With dead ends: 91238 [2022-01-18 12:09:12,759 INFO L226 Difference]: Without dead ends: 89780 [2022-01-18 12:09:12,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:09:12,760 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 230 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:09:12,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 384 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:09:12,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89780 states. [2022-01-18 12:09:14,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89780 to 53606. [2022-01-18 12:09:14,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53606 states, 53605 states have (on average 4.523365357709169) internal successors, (242475), 53605 states have internal predecessors, (242475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:14,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53606 states to 53606 states and 242475 transitions. [2022-01-18 12:09:14,891 INFO L78 Accepts]: Start accepts. Automaton has 53606 states and 242475 transitions. Word has length 86 [2022-01-18 12:09:14,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:09:14,892 INFO L470 AbstractCegarLoop]: Abstraction has 53606 states and 242475 transitions. [2022-01-18 12:09:14,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:14,892 INFO L276 IsEmpty]: Start isEmpty. Operand 53606 states and 242475 transitions. [2022-01-18 12:09:15,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 12:09:15,527 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:09:15,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:09:15,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 12:09:15,527 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 12:09:15,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:09:15,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1561519303, now seen corresponding path program 6 times [2022-01-18 12:09:15,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:09:15,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090644095] [2022-01-18 12:09:15,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:09:15,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:09:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:09:15,577 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 12:09:15,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:09:15,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090644095] [2022-01-18 12:09:15,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090644095] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:09:15,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:09:15,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:09:15,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348350851] [2022-01-18 12:09:15,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:09:15,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:09:15,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:09:15,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:09:15,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:09:15,578 INFO L87 Difference]: Start difference. First operand 53606 states and 242475 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:16,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:09:16,216 INFO L93 Difference]: Finished difference Result 82670 states and 369701 transitions. [2022-01-18 12:09:16,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:09:16,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-18 12:09:16,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:09:16,569 INFO L225 Difference]: With dead ends: 82670 [2022-01-18 12:09:16,569 INFO L226 Difference]: Without dead ends: 81392 [2022-01-18 12:09:16,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 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 12:09:16,570 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 145 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:09:16,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 411 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:09:16,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81392 states. [2022-01-18 12:09:18,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81392 to 52367. [2022-01-18 12:09:18,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52367 states, 52366 states have (on average 4.535557422755223) internal successors, (237509), 52366 states have internal predecessors, (237509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:19,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52367 states to 52367 states and 237509 transitions. [2022-01-18 12:09:19,067 INFO L78 Accepts]: Start accepts. Automaton has 52367 states and 237509 transitions. Word has length 86 [2022-01-18 12:09:19,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:09:19,068 INFO L470 AbstractCegarLoop]: Abstraction has 52367 states and 237509 transitions. [2022-01-18 12:09:19,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:19,068 INFO L276 IsEmpty]: Start isEmpty. Operand 52367 states and 237509 transitions. [2022-01-18 12:09:19,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 12:09:19,210 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:09:19,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:09:19,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 12:09:19,210 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 12:09:19,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:09:19,211 INFO L85 PathProgramCache]: Analyzing trace with hash 59267419, now seen corresponding path program 7 times [2022-01-18 12:09:19,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:09:19,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438129245] [2022-01-18 12:09:19,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:09:19,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:09:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:09:19,244 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 12:09:19,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:09:19,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438129245] [2022-01-18 12:09:19,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438129245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:09:19,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:09:19,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:09:19,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086245457] [2022-01-18 12:09:19,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:09:19,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:09:19,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:09:19,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:09:19,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:09:19,246 INFO L87 Difference]: Start difference. First operand 52367 states and 237509 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:19,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:09:19,738 INFO L93 Difference]: Finished difference Result 62549 states and 283434 transitions. [2022-01-18 12:09:19,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:09:19,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-18 12:09:19,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:09:20,488 INFO L225 Difference]: With dead ends: 62549 [2022-01-18 12:09:20,488 INFO L226 Difference]: Without dead ends: 61091 [2022-01-18 12:09:20,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 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 12:09:20,489 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 102 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:09:20,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 450 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:09:20,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61091 states. [2022-01-18 12:09:21,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61091 to 50123. [2022-01-18 12:09:21,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50123 states, 50122 states have (on average 4.5509357168508835) internal successors, (228102), 50122 states have internal predecessors, (228102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:22,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50123 states to 50123 states and 228102 transitions. [2022-01-18 12:09:22,218 INFO L78 Accepts]: Start accepts. Automaton has 50123 states and 228102 transitions. Word has length 86 [2022-01-18 12:09:22,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:09:22,218 INFO L470 AbstractCegarLoop]: Abstraction has 50123 states and 228102 transitions. [2022-01-18 12:09:22,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:22,218 INFO L276 IsEmpty]: Start isEmpty. Operand 50123 states and 228102 transitions. [2022-01-18 12:09:22,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 12:09:22,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:09:22,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:09:22,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 12:09:22,357 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 12:09:22,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:09:22,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1526260539, now seen corresponding path program 8 times [2022-01-18 12:09:22,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:09:22,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611358648] [2022-01-18 12:09:22,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:09:22,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:09:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:09:22,410 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 12:09:22,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:09:22,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611358648] [2022-01-18 12:09:22,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611358648] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:09:22,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:09:22,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:09:22,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33185324] [2022-01-18 12:09:22,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:09:22,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:09:22,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:09:22,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:09:22,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:09:22,412 INFO L87 Difference]: Start difference. First operand 50123 states and 228102 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:23,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:09:23,545 INFO L93 Difference]: Finished difference Result 77939 states and 355218 transitions. [2022-01-18 12:09:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:09:23,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-18 12:09:23,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:09:23,971 INFO L225 Difference]: With dead ends: 77939 [2022-01-18 12:09:23,971 INFO L226 Difference]: Without dead ends: 77939 [2022-01-18 12:09:23,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:09:23,972 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 149 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:09:23,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 536 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:09:24,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77939 states. [2022-01-18 12:09:25,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77939 to 49973. [2022-01-18 12:09:25,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49973 states, 49972 states have (on average 4.551188665652766) internal successors, (227432), 49972 states have internal predecessors, (227432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:25,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49973 states to 49973 states and 227432 transitions. [2022-01-18 12:09:25,981 INFO L78 Accepts]: Start accepts. Automaton has 49973 states and 227432 transitions. Word has length 86 [2022-01-18 12:09:25,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:09:25,982 INFO L470 AbstractCegarLoop]: Abstraction has 49973 states and 227432 transitions. [2022-01-18 12:09:25,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:25,982 INFO L276 IsEmpty]: Start isEmpty. Operand 49973 states and 227432 transitions. [2022-01-18 12:09:26,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 12:09:26,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:09:26,133 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] [2022-01-18 12:09:26,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 12:09:26,133 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 12:09:26,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:09:26,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1992109229, now seen corresponding path program 9 times [2022-01-18 12:09:26,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:09:26,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478662919] [2022-01-18 12:09:26,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:09:26,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:09:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:09:26,213 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 12:09:26,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:09:26,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478662919] [2022-01-18 12:09:26,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478662919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:09:26,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:09:26,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:09:26,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838804791] [2022-01-18 12:09:26,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:09:26,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:09:26,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:09:26,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:09:26,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:09:26,214 INFO L87 Difference]: Start difference. First operand 49973 states and 227432 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:27,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:09:27,467 INFO L93 Difference]: Finished difference Result 75881 states and 345948 transitions. [2022-01-18 12:09:27,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:09:27,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-18 12:09:27,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:09:27,828 INFO L225 Difference]: With dead ends: 75881 [2022-01-18 12:09:27,828 INFO L226 Difference]: Without dead ends: 75881 [2022-01-18 12:09:27,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:09:27,829 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 159 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:09:27,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 579 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:09:27,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75881 states. [2022-01-18 12:09:29,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75881 to 49403. [2022-01-18 12:09:29,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49403 states, 49402 states have (on average 4.55066596494069) internal successors, (224812), 49402 states have internal predecessors, (224812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:29,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49403 states to 49403 states and 224812 transitions. [2022-01-18 12:09:29,795 INFO L78 Accepts]: Start accepts. Automaton has 49403 states and 224812 transitions. Word has length 86 [2022-01-18 12:09:29,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:09:29,795 INFO L470 AbstractCegarLoop]: Abstraction has 49403 states and 224812 transitions. [2022-01-18 12:09:29,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:29,796 INFO L276 IsEmpty]: Start isEmpty. Operand 49403 states and 224812 transitions. [2022-01-18 12:09:29,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-18 12:09:29,934 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:09:29,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:09:29,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 12:09:29,935 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 12:09:29,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:09:29,935 INFO L85 PathProgramCache]: Analyzing trace with hash -203147259, now seen corresponding path program 10 times [2022-01-18 12:09:29,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:09:29,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612010534] [2022-01-18 12:09:29,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:09:29,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:09:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:09:29,965 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 12:09:29,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:09:29,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612010534] [2022-01-18 12:09:29,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612010534] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:09:29,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:09:29,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:09:29,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456183899] [2022-01-18 12:09:29,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:09:29,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:09:29,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:09:29,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:09:29,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:09:29,967 INFO L87 Difference]: Start difference. First operand 49403 states and 224812 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:30,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:09:30,975 INFO L93 Difference]: Finished difference Result 74441 states and 339204 transitions. [2022-01-18 12:09:30,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 12:09:30,975 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-18 12:09:30,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:09:31,304 INFO L225 Difference]: With dead ends: 74441 [2022-01-18 12:09:31,304 INFO L226 Difference]: Without dead ends: 74441 [2022-01-18 12:09:31,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 12:09:31,305 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 259 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:09:31,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 438 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:09:31,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74441 states. [2022-01-18 12:09:32,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74441 to 45899. [2022-01-18 12:09:32,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45899 states, 45898 states have (on average 4.54259444855985) internal successors, (208496), 45898 states have internal predecessors, (208496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:33,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45899 states to 45899 states and 208496 transitions. [2022-01-18 12:09:33,035 INFO L78 Accepts]: Start accepts. Automaton has 45899 states and 208496 transitions. Word has length 86 [2022-01-18 12:09:33,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:09:33,035 INFO L470 AbstractCegarLoop]: Abstraction has 45899 states and 208496 transitions. [2022-01-18 12:09:33,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:33,035 INFO L276 IsEmpty]: Start isEmpty. Operand 45899 states and 208496 transitions. [2022-01-18 12:09:33,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 12:09:33,143 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:09:33,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:09:33,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 12:09:33,143 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 12:09:33,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:09:33,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1593679681, now seen corresponding path program 1 times [2022-01-18 12:09:33,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:09:33,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766891662] [2022-01-18 12:09:33,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:09:33,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:09:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:09:33,178 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 12:09:33,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:09:33,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766891662] [2022-01-18 12:09:33,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766891662] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:09:33,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517158202] [2022-01-18 12:09:33,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:09:33,179 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:09:33,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:09:33,180 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 12:09:33,181 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 12:09:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:09:33,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-18 12:09:33,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:09:33,362 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 12:09:33,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:09:33,485 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 12:09:33,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517158202] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:09:33,486 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:09:33,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-01-18 12:09:33,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197277303] [2022-01-18 12:09:33,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:09:33,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 12:09:33,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:09:33,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 12:09:33,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-18 12:09:33,487 INFO L87 Difference]: Start difference. First operand 45899 states and 208496 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 12:09:34,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:09:34,594 INFO L93 Difference]: Finished difference Result 79094 states and 360312 transitions. [2022-01-18 12:09:34,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 12:09:34,597 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 91 [2022-01-18 12:09:34,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:09:34,917 INFO L225 Difference]: With dead ends: 79094 [2022-01-18 12:09:34,917 INFO L226 Difference]: Without dead ends: 79094 [2022-01-18 12:09:34,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 178 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-01-18 12:09:34,918 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 421 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 12:09:34,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 1257 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 12:09:35,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79094 states. [2022-01-18 12:09:36,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79094 to 44714. [2022-01-18 12:09:36,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44714 states, 44713 states have (on average 4.541162525440028) internal successors, (203049), 44713 states have internal predecessors, (203049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:36,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44714 states to 44714 states and 203049 transitions. [2022-01-18 12:09:36,670 INFO L78 Accepts]: Start accepts. Automaton has 44714 states and 203049 transitions. Word has length 91 [2022-01-18 12:09:36,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:09:36,670 INFO L470 AbstractCegarLoop]: Abstraction has 44714 states and 203049 transitions. [2022-01-18 12:09:36,670 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 12:09:36,670 INFO L276 IsEmpty]: Start isEmpty. Operand 44714 states and 203049 transitions. [2022-01-18 12:09:37,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 12:09:37,158 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:09:37,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:09:37,175 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 12:09:37,371 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,SelfDestructingSolverStorable19 [2022-01-18 12:09:37,371 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 12:09:37,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:09:37,372 INFO L85 PathProgramCache]: Analyzing trace with hash -136039099, now seen corresponding path program 2 times [2022-01-18 12:09:37,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:09:37,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884423064] [2022-01-18 12:09:37,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:09:37,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:09:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:09:37,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:09:37,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:09:37,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884423064] [2022-01-18 12:09:37,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884423064] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:09:37,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:09:37,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:09:37,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328775232] [2022-01-18 12:09:37,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:09:37,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:09:37,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:09:37,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:09:37,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:09:37,413 INFO L87 Difference]: Start difference. First operand 44714 states and 203049 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:38,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:09:38,023 INFO L93 Difference]: Finished difference Result 79805 states and 362798 transitions. [2022-01-18 12:09:38,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 12:09:38,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-18 12:09:38,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:09:38,365 INFO L225 Difference]: With dead ends: 79805 [2022-01-18 12:09:38,365 INFO L226 Difference]: Without dead ends: 79805 [2022-01-18 12:09:38,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 12:09:38,366 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 207 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:09:38,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 681 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:09:38,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79805 states. [2022-01-18 12:09:39,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79805 to 44522. [2022-01-18 12:09:39,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44522 states, 44521 states have (on average 4.5408458929493944) internal successors, (202163), 44521 states have internal predecessors, (202163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:40,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44522 states to 44522 states and 202163 transitions. [2022-01-18 12:09:40,465 INFO L78 Accepts]: Start accepts. Automaton has 44522 states and 202163 transitions. Word has length 91 [2022-01-18 12:09:40,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:09:40,465 INFO L470 AbstractCegarLoop]: Abstraction has 44522 states and 202163 transitions. [2022-01-18 12:09:40,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:40,465 INFO L276 IsEmpty]: Start isEmpty. Operand 44522 states and 202163 transitions. [2022-01-18 12:09:40,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 12:09:40,573 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:09:40,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:09:40,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 12:09:40,573 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 12:09:40,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:09:40,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1630178977, now seen corresponding path program 3 times [2022-01-18 12:09:40,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:09:40,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159093627] [2022-01-18 12:09:40,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:09:40,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:09:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:09:40,612 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 12:09:40,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:09:40,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159093627] [2022-01-18 12:09:40,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159093627] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:09:40,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95560144] [2022-01-18 12:09:40,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 12:09:40,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:09:40,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:09:40,613 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 12:09:40,614 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 12:09:40,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 12:09:40,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:09:40,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-18 12:09:40,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:09:40,845 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 12:09:40,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:09:40,961 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 12:09:40,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95560144] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:09:40,961 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:09:40,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2022-01-18 12:09:40,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614340759] [2022-01-18 12:09:40,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:09:40,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 12:09:40,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:09:40,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 12:09:40,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-01-18 12:09:40,963 INFO L87 Difference]: Start difference. First operand 44522 states and 202163 transitions. Second operand has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:42,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:09:42,287 INFO L93 Difference]: Finished difference Result 111947 states and 499493 transitions. [2022-01-18 12:09:42,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 12:09:42,288 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 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 91 [2022-01-18 12:09:42,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:09:42,819 INFO L225 Difference]: With dead ends: 111947 [2022-01-18 12:09:42,819 INFO L226 Difference]: Without dead ends: 111947 [2022-01-18 12:09:42,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-01-18 12:09:42,820 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 525 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 12:09:42,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [525 Valid, 1414 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 12:09:42,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111947 states. [2022-01-18 12:09:44,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111947 to 44906. [2022-01-18 12:09:44,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44906 states, 44905 states have (on average 4.55009464424897) internal successors, (204322), 44905 states have internal predecessors, (204322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:44,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44906 states to 44906 states and 204322 transitions. [2022-01-18 12:09:44,823 INFO L78 Accepts]: Start accepts. Automaton has 44906 states and 204322 transitions. Word has length 91 [2022-01-18 12:09:44,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:09:44,824 INFO L470 AbstractCegarLoop]: Abstraction has 44906 states and 204322 transitions. [2022-01-18 12:09:44,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:44,824 INFO L276 IsEmpty]: Start isEmpty. Operand 44906 states and 204322 transitions. [2022-01-18 12:09:44,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 12:09:44,929 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:09:44,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:09:44,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 12:09:45,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:09:45,130 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 12:09:45,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:09:45,131 INFO L85 PathProgramCache]: Analyzing trace with hash -2036896451, now seen corresponding path program 4 times [2022-01-18 12:09:45,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:09:45,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209357784] [2022-01-18 12:09:45,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:09:45,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:09:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:09:45,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:09:45,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:09:45,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209357784] [2022-01-18 12:09:45,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209357784] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:09:45,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:09:45,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:09:45,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103024503] [2022-01-18 12:09:45,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:09:45,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:09:45,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:09:45,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:09:45,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:09:45,185 INFO L87 Difference]: Start difference. First operand 44906 states and 204322 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:46,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:09:46,260 INFO L93 Difference]: Finished difference Result 96260 states and 432304 transitions. [2022-01-18 12:09:46,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:09:46,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-18 12:09:46,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:09:46,656 INFO L225 Difference]: With dead ends: 96260 [2022-01-18 12:09:46,656 INFO L226 Difference]: Without dead ends: 96260 [2022-01-18 12:09:46,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:09:46,659 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 217 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:09:46,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 480 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:09:46,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96260 states. [2022-01-18 12:09:48,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96260 to 43853. [2022-01-18 12:09:48,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43853 states, 43852 states have (on average 4.523693332117121) internal successors, (198373), 43852 states have internal predecessors, (198373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:48,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43853 states to 43853 states and 198373 transitions. [2022-01-18 12:09:48,945 INFO L78 Accepts]: Start accepts. Automaton has 43853 states and 198373 transitions. Word has length 91 [2022-01-18 12:09:48,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:09:48,946 INFO L470 AbstractCegarLoop]: Abstraction has 43853 states and 198373 transitions. [2022-01-18 12:09:48,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:48,946 INFO L276 IsEmpty]: Start isEmpty. Operand 43853 states and 198373 transitions. [2022-01-18 12:09:49,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 12:09:49,047 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:09:49,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:09:49,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 12:09:49,047 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 12:09:49,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:09:49,047 INFO L85 PathProgramCache]: Analyzing trace with hash -6129173, now seen corresponding path program 5 times [2022-01-18 12:09:49,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:09:49,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039229964] [2022-01-18 12:09:49,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:09:49,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:09:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:09:49,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:09:49,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:09:49,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039229964] [2022-01-18 12:09:49,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039229964] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:09:49,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:09:49,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:09:49,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868404684] [2022-01-18 12:09:49,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:09:49,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:09:49,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:09:49,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:09:49,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:09:49,077 INFO L87 Difference]: Start difference. First operand 43853 states and 198373 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:49,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:09:49,496 INFO L93 Difference]: Finished difference Result 59753 states and 269123 transitions. [2022-01-18 12:09:49,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:09:49,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-18 12:09:49,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:09:49,730 INFO L225 Difference]: With dead ends: 59753 [2022-01-18 12:09:49,730 INFO L226 Difference]: Without dead ends: 58601 [2022-01-18 12:09:49,730 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 12:09:49,731 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 107 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:09:49,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 423 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:09:49,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58601 states. [2022-01-18 12:09:50,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58601 to 43823. [2022-01-18 12:09:51,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43823 states, 43822 states have (on average 4.523047784217972) internal successors, (198209), 43822 states have internal predecessors, (198209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:51,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43823 states to 43823 states and 198209 transitions. [2022-01-18 12:09:51,172 INFO L78 Accepts]: Start accepts. Automaton has 43823 states and 198209 transitions. Word has length 91 [2022-01-18 12:09:51,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:09:51,172 INFO L470 AbstractCegarLoop]: Abstraction has 43823 states and 198209 transitions. [2022-01-18 12:09:51,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:51,172 INFO L276 IsEmpty]: Start isEmpty. Operand 43823 states and 198209 transitions. [2022-01-18 12:09:51,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 12:09:51,617 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:09:51,617 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:09:51,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 12:09:51,617 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 12:09:51,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:09:51,618 INFO L85 PathProgramCache]: Analyzing trace with hash -552359655, now seen corresponding path program 6 times [2022-01-18 12:09:51,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:09:51,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508559385] [2022-01-18 12:09:51,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:09:51,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:09:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:09:51,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:09:51,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:09:51,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508559385] [2022-01-18 12:09:51,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508559385] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:09:51,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719295393] [2022-01-18 12:09:51,672 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 12:09:51,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:09:51,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:09:51,673 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 12:09:51,674 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 12:09:51,744 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-01-18 12:09:51,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:09:51,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-18 12:09:51,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:09:51,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:09:51,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:09:51,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:09:51,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719295393] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:09:51,999 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:09:51,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2022-01-18 12:09:52,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410142706] [2022-01-18 12:09:52,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:09:52,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 12:09:52,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:09:52,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 12:09:52,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 12:09:52,000 INFO L87 Difference]: Start difference. First operand 43823 states and 198209 transitions. Second operand has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 11 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:52,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:09:52,672 INFO L93 Difference]: Finished difference Result 86387 states and 384288 transitions. [2022-01-18 12:09:52,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 12:09:52,673 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 11 states have internal predecessors, (118), 0 states have call successors, (0), 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 91 [2022-01-18 12:09:52,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:09:53,020 INFO L225 Difference]: With dead ends: 86387 [2022-01-18 12:09:53,021 INFO L226 Difference]: Without dead ends: 86387 [2022-01-18 12:09:53,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-01-18 12:09:53,021 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 464 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:09:53,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [464 Valid, 1043 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:09:53,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86387 states. [2022-01-18 12:09:54,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86387 to 43430. [2022-01-18 12:09:54,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43430 states, 43429 states have (on average 4.51343572267379) internal successors, (196014), 43429 states have internal predecessors, (196014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:55,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43430 states to 43430 states and 196014 transitions. [2022-01-18 12:09:55,144 INFO L78 Accepts]: Start accepts. Automaton has 43430 states and 196014 transitions. Word has length 91 [2022-01-18 12:09:55,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:09:55,144 INFO L470 AbstractCegarLoop]: Abstraction has 43430 states and 196014 transitions. [2022-01-18 12:09:55,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 11 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:55,144 INFO L276 IsEmpty]: Start isEmpty. Operand 43430 states and 196014 transitions. [2022-01-18 12:09:55,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 12:09:55,250 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:09:55,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:09:55,266 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 12:09:55,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:09:55,450 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 12:09:55,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:09:55,451 INFO L85 PathProgramCache]: Analyzing trace with hash -993622783, now seen corresponding path program 7 times [2022-01-18 12:09:55,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:09:55,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964596755] [2022-01-18 12:09:55,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:09:55,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:09:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:09:55,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:09:55,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:09:55,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964596755] [2022-01-18 12:09:55,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964596755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:09:55,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:09:55,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:09:55,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217600160] [2022-01-18 12:09:55,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:09:55,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:09:55,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:09:55,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:09:55,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:09:55,493 INFO L87 Difference]: Start difference. First operand 43430 states and 196014 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:56,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:09:56,023 INFO L93 Difference]: Finished difference Result 74096 states and 329713 transitions. [2022-01-18 12:09:56,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:09:56,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-18 12:09:56,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:09:56,319 INFO L225 Difference]: With dead ends: 74096 [2022-01-18 12:09:56,319 INFO L226 Difference]: Without dead ends: 72944 [2022-01-18 12:09:56,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 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 12:09:56,320 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 133 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:09:56,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 507 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:09:56,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72944 states. [2022-01-18 12:09:57,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72944 to 43400. [2022-01-18 12:09:57,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43400 states, 43399 states have (on average 4.512776792091984) internal successors, (195850), 43399 states have internal predecessors, (195850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:58,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43400 states to 43400 states and 195850 transitions. [2022-01-18 12:09:58,178 INFO L78 Accepts]: Start accepts. Automaton has 43400 states and 195850 transitions. Word has length 91 [2022-01-18 12:09:58,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:09:58,179 INFO L470 AbstractCegarLoop]: Abstraction has 43400 states and 195850 transitions. [2022-01-18 12:09:58,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:58,179 INFO L276 IsEmpty]: Start isEmpty. Operand 43400 states and 195850 transitions. [2022-01-18 12:09:58,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 12:09:58,276 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:09:58,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:09:58,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 12:09:58,276 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 12:09:58,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:09:58,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1938111767, now seen corresponding path program 8 times [2022-01-18 12:09:58,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:09:58,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183803372] [2022-01-18 12:09:58,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:09:58,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:09:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:09:58,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:09:58,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:09:58,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183803372] [2022-01-18 12:09:58,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183803372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:09:58,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:09:58,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:09:58,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688265483] [2022-01-18 12:09:58,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:09:58,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:09:58,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:09:58,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:09:58,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:09:58,305 INFO L87 Difference]: Start difference. First operand 43400 states and 195850 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:09:58,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:09:58,702 INFO L93 Difference]: Finished difference Result 54326 states and 244720 transitions. [2022-01-18 12:09:58,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:09:58,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-18 12:09:58,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:09:58,901 INFO L225 Difference]: With dead ends: 54326 [2022-01-18 12:09:58,901 INFO L226 Difference]: Without dead ends: 52022 [2022-01-18 12:09:58,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 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 12:09:58,904 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 114 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:09:58,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 474 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:09:58,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52022 states. [2022-01-18 12:10:00,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52022 to 40958. [2022-01-18 12:10:00,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40958 states, 40957 states have (on average 4.525575603681911) internal successors, (185354), 40957 states have internal predecessors, (185354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:00,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40958 states to 40958 states and 185354 transitions. [2022-01-18 12:10:00,275 INFO L78 Accepts]: Start accepts. Automaton has 40958 states and 185354 transitions. Word has length 91 [2022-01-18 12:10:00,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:10:00,276 INFO L470 AbstractCegarLoop]: Abstraction has 40958 states and 185354 transitions. [2022-01-18 12:10:00,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:00,276 INFO L276 IsEmpty]: Start isEmpty. Operand 40958 states and 185354 transitions. [2022-01-18 12:10:00,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-18 12:10:00,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:10:00,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:10:00,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 12:10:00,370 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 12:10:00,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:10:00,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1947938087, now seen corresponding path program 1 times [2022-01-18 12:10:00,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:10:00,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392050047] [2022-01-18 12:10:00,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:10:00,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:10:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:10:00,402 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:10:00,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:10:00,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392050047] [2022-01-18 12:10:00,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392050047] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:10:00,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196634750] [2022-01-18 12:10:00,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:10:00,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:10:00,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:10:00,403 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 12:10:00,405 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 12:10:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:10:00,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-18 12:10:00,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:10:00,581 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:10:00,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:10:01,067 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:10:01,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196634750] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:10:01,068 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:10:01,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-01-18 12:10:01,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909659856] [2022-01-18 12:10:01,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:10:01,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 12:10:01,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:10:01,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 12:10:01,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-18 12:10:01,069 INFO L87 Difference]: Start difference. First operand 40958 states and 185354 transitions. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:01,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:10:01,670 INFO L93 Difference]: Finished difference Result 67278 states and 307900 transitions. [2022-01-18 12:10:01,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 12:10:01,671 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 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 96 [2022-01-18 12:10:01,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:10:01,938 INFO L225 Difference]: With dead ends: 67278 [2022-01-18 12:10:01,939 INFO L226 Difference]: Without dead ends: 67278 [2022-01-18 12:10:01,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 188 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-01-18 12:10:01,939 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 349 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:10:01,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 1024 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:10:02,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67278 states. [2022-01-18 12:10:03,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67278 to 44623. [2022-01-18 12:10:03,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44623 states, 44622 states have (on average 4.536618708260499) internal successors, (202433), 44622 states have internal predecessors, (202433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:03,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44623 states to 44623 states and 202433 transitions. [2022-01-18 12:10:03,514 INFO L78 Accepts]: Start accepts. Automaton has 44623 states and 202433 transitions. Word has length 96 [2022-01-18 12:10:03,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:10:03,514 INFO L470 AbstractCegarLoop]: Abstraction has 44623 states and 202433 transitions. [2022-01-18 12:10:03,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:03,514 INFO L276 IsEmpty]: Start isEmpty. Operand 44623 states and 202433 transitions. [2022-01-18 12:10:03,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-18 12:10:03,624 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:10:03,624 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] [2022-01-18 12:10:03,640 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 12:10:03,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-01-18 12:10:03,825 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 12:10:03,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:10:03,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1878312195, now seen corresponding path program 2 times [2022-01-18 12:10:03,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:10:03,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325987373] [2022-01-18 12:10:03,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:10:03,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:10:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:10:03,860 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:10:03,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:10:03,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325987373] [2022-01-18 12:10:03,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325987373] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:10:03,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:10:03,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:10:03,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243997774] [2022-01-18 12:10:03,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:10:03,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:10:03,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:10:03,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:10:03,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:10:03,861 INFO L87 Difference]: Start difference. First operand 44623 states and 202433 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:04,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:10:04,768 INFO L93 Difference]: Finished difference Result 78615 states and 359418 transitions. [2022-01-18 12:10:04,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 12:10:04,768 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-18 12:10:04,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:10:05,128 INFO L225 Difference]: With dead ends: 78615 [2022-01-18 12:10:05,128 INFO L226 Difference]: Without dead ends: 78615 [2022-01-18 12:10:05,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 12:10:05,132 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 227 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:10:05,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 604 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:10:05,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78615 states. [2022-01-18 12:10:06,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78615 to 44839. [2022-01-18 12:10:06,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44839 states, 44838 states have (on average 4.536040858200633) internal successors, (203387), 44838 states have internal predecessors, (203387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:06,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44839 states to 44839 states and 203387 transitions. [2022-01-18 12:10:06,816 INFO L78 Accepts]: Start accepts. Automaton has 44839 states and 203387 transitions. Word has length 96 [2022-01-18 12:10:06,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:10:06,816 INFO L470 AbstractCegarLoop]: Abstraction has 44839 states and 203387 transitions. [2022-01-18 12:10:06,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:06,817 INFO L276 IsEmpty]: Start isEmpty. Operand 44839 states and 203387 transitions. [2022-01-18 12:10:07,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-18 12:10:07,297 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:10:07,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:10:07,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 12:10:07,298 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 12:10:07,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:10:07,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1276245633, now seen corresponding path program 3 times [2022-01-18 12:10:07,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:10:07,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206418537] [2022-01-18 12:10:07,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:10:07,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:10:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:10:07,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:10:07,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:10:07,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206418537] [2022-01-18 12:10:07,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206418537] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:10:07,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:10:07,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:10:07,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198396470] [2022-01-18 12:10:07,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:10:07,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:10:07,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:10:07,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:10:07,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:10:07,327 INFO L87 Difference]: Start difference. First operand 44839 states and 203387 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:07,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:10:07,760 INFO L93 Difference]: Finished difference Result 62259 states and 283965 transitions. [2022-01-18 12:10:07,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:10:07,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-18 12:10:07,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:10:07,996 INFO L225 Difference]: With dead ends: 62259 [2022-01-18 12:10:07,997 INFO L226 Difference]: Without dead ends: 61899 [2022-01-18 12:10:07,997 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 12:10:07,997 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 88 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:10:07,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 464 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:10:08,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61899 states. [2022-01-18 12:10:09,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61899 to 44971. [2022-01-18 12:10:09,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44971 states, 44970 states have (on average 4.5356904603068715) internal successors, (203970), 44970 states have internal predecessors, (203970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:09,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44971 states to 44971 states and 203970 transitions. [2022-01-18 12:10:09,542 INFO L78 Accepts]: Start accepts. Automaton has 44971 states and 203970 transitions. Word has length 96 [2022-01-18 12:10:09,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:10:09,542 INFO L470 AbstractCegarLoop]: Abstraction has 44971 states and 203970 transitions. [2022-01-18 12:10:09,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:09,542 INFO L276 IsEmpty]: Start isEmpty. Operand 44971 states and 203970 transitions. [2022-01-18 12:10:09,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-18 12:10:09,650 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:10:09,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:10:09,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 12:10:09,651 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 12:10:09,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:10:09,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1252227581, now seen corresponding path program 4 times [2022-01-18 12:10:09,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:10:09,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117436592] [2022-01-18 12:10:09,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:10:09,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:10:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:10:09,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:10:09,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:10:09,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117436592] [2022-01-18 12:10:09,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117436592] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:10:09,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:10:09,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:10:09,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551236377] [2022-01-18 12:10:09,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:10:09,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:10:09,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:10:09,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:10:09,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:10:09,683 INFO L87 Difference]: Start difference. First operand 44971 states and 203970 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:10,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:10:10,465 INFO L93 Difference]: Finished difference Result 59887 states and 273238 transitions. [2022-01-18 12:10:10,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:10:10,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-18 12:10:10,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:10:10,712 INFO L225 Difference]: With dead ends: 59887 [2022-01-18 12:10:10,712 INFO L226 Difference]: Without dead ends: 59887 [2022-01-18 12:10:10,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:10:10,712 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 86 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:10:10,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 362 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:10:10,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59887 states. [2022-01-18 12:10:11,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59887 to 45903. [2022-01-18 12:10:12,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45903 states, 45902 states have (on average 4.539083264345781) internal successors, (208353), 45902 states have internal predecessors, (208353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:12,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45903 states to 45903 states and 208353 transitions. [2022-01-18 12:10:12,198 INFO L78 Accepts]: Start accepts. Automaton has 45903 states and 208353 transitions. Word has length 96 [2022-01-18 12:10:12,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:10:12,200 INFO L470 AbstractCegarLoop]: Abstraction has 45903 states and 208353 transitions. [2022-01-18 12:10:12,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:12,200 INFO L276 IsEmpty]: Start isEmpty. Operand 45903 states and 208353 transitions. [2022-01-18 12:10:12,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-18 12:10:12,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:10:12,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:10:12,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 12:10:12,305 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 12:10:12,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:10:12,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1806682297, now seen corresponding path program 5 times [2022-01-18 12:10:12,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:10:12,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300183381] [2022-01-18 12:10:12,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:10:12,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:10:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:10:12,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:10:12,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:10:12,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300183381] [2022-01-18 12:10:12,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300183381] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:10:12,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:10:12,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:10:12,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607294498] [2022-01-18 12:10:12,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:10:12,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:10:12,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:10:12,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:10:12,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:10:12,341 INFO L87 Difference]: Start difference. First operand 45903 states and 208353 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:13,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:10:13,257 INFO L93 Difference]: Finished difference Result 76846 states and 352420 transitions. [2022-01-18 12:10:13,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:10:13,257 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-18 12:10:13,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:10:13,565 INFO L225 Difference]: With dead ends: 76846 [2022-01-18 12:10:13,565 INFO L226 Difference]: Without dead ends: 76846 [2022-01-18 12:10:13,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:10:13,566 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 125 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:10:13,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 475 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:10:13,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76846 states. [2022-01-18 12:10:15,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76846 to 44863. [2022-01-18 12:10:15,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44863 states, 44862 states have (on average 4.535976996121439) internal successors, (203493), 44862 states have internal predecessors, (203493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:15,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44863 states to 44863 states and 203493 transitions. [2022-01-18 12:10:15,251 INFO L78 Accepts]: Start accepts. Automaton has 44863 states and 203493 transitions. Word has length 96 [2022-01-18 12:10:15,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:10:15,251 INFO L470 AbstractCegarLoop]: Abstraction has 44863 states and 203493 transitions. [2022-01-18 12:10:15,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:15,251 INFO L276 IsEmpty]: Start isEmpty. Operand 44863 states and 203493 transitions. [2022-01-18 12:10:15,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-18 12:10:15,354 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:10:15,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:10:15,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 12:10:15,355 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 12:10:15,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:10:15,355 INFO L85 PathProgramCache]: Analyzing trace with hash 67109195, now seen corresponding path program 6 times [2022-01-18 12:10:15,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:10:15,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198676530] [2022-01-18 12:10:15,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:10:15,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:10:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:10:15,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:10:15,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:10:15,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198676530] [2022-01-18 12:10:15,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198676530] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:10:15,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:10:15,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:10:15,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808952950] [2022-01-18 12:10:15,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:10:15,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:10:15,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:10:15,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:10:15,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:10:15,388 INFO L87 Difference]: Start difference. First operand 44863 states and 203493 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:16,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:10:16,412 INFO L93 Difference]: Finished difference Result 81843 states and 374442 transitions. [2022-01-18 12:10:16,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:10:16,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-18 12:10:16,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:10:16,759 INFO L225 Difference]: With dead ends: 81843 [2022-01-18 12:10:16,759 INFO L226 Difference]: Without dead ends: 81483 [2022-01-18 12:10:16,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 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 12:10:16,759 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 110 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:10:16,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 397 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:10:16,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81483 states. [2022-01-18 12:10:18,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81483 to 45055. [2022-01-18 12:10:18,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45055 states, 45054 states have (on average 4.536800284103521) internal successors, (204401), 45054 states have internal predecessors, (204401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:18,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45055 states to 45055 states and 204401 transitions. [2022-01-18 12:10:18,608 INFO L78 Accepts]: Start accepts. Automaton has 45055 states and 204401 transitions. Word has length 96 [2022-01-18 12:10:18,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:10:18,608 INFO L470 AbstractCegarLoop]: Abstraction has 45055 states and 204401 transitions. [2022-01-18 12:10:18,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:18,608 INFO L276 IsEmpty]: Start isEmpty. Operand 45055 states and 204401 transitions. [2022-01-18 12:10:19,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-18 12:10:19,122 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:10:19,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:10:19,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 12:10:19,122 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 12:10:19,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:10:19,123 INFO L85 PathProgramCache]: Analyzing trace with hash 43091143, now seen corresponding path program 7 times [2022-01-18 12:10:19,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:10:19,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773709366] [2022-01-18 12:10:19,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:10:19,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:10:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:10:19,176 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:10:19,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:10:19,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773709366] [2022-01-18 12:10:19,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773709366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:10:19,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:10:19,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:10:19,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555045890] [2022-01-18 12:10:19,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:10:19,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:10:19,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:10:19,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:10:19,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:10:19,177 INFO L87 Difference]: Start difference. First operand 45055 states and 204401 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:19,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:10:19,755 INFO L93 Difference]: Finished difference Result 79047 states and 361593 transitions. [2022-01-18 12:10:19,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 12:10:19,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-18 12:10:19,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:10:20,092 INFO L225 Difference]: With dead ends: 79047 [2022-01-18 12:10:20,092 INFO L226 Difference]: Without dead ends: 79047 [2022-01-18 12:10:20,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:10:20,093 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 112 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:10:20,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 356 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:10:20,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79047 states. [2022-01-18 12:10:21,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79047 to 45951. [2022-01-18 12:10:22,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45951 states, 45950 states have (on average 4.539477693144723) internal successors, (208589), 45950 states have internal predecessors, (208589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:22,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45951 states to 45951 states and 208589 transitions. [2022-01-18 12:10:22,656 INFO L78 Accepts]: Start accepts. Automaton has 45951 states and 208589 transitions. Word has length 96 [2022-01-18 12:10:22,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:10:22,656 INFO L470 AbstractCegarLoop]: Abstraction has 45951 states and 208589 transitions. [2022-01-18 12:10:22,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:22,656 INFO L276 IsEmpty]: Start isEmpty. Operand 45951 states and 208589 transitions. [2022-01-18 12:10:22,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-18 12:10:22,770 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:10:22,770 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:10:22,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 12:10:22,771 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 12:10:22,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:10:22,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1279148561, now seen corresponding path program 8 times [2022-01-18 12:10:22,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:10:22,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560789075] [2022-01-18 12:10:22,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:10:22,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:10:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:10:22,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:10:22,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:10:22,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560789075] [2022-01-18 12:10:22,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560789075] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:10:22,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:10:22,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 12:10:22,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23973184] [2022-01-18 12:10:22,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:10:22,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 12:10:22,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:10:22,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 12:10:22,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:10:22,806 INFO L87 Difference]: Start difference. First operand 45951 states and 208589 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:23,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:10:23,423 INFO L93 Difference]: Finished difference Result 81550 states and 369863 transitions. [2022-01-18 12:10:23,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:10:23,424 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-18 12:10:23,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:10:23,767 INFO L225 Difference]: With dead ends: 81550 [2022-01-18 12:10:23,767 INFO L226 Difference]: Without dead ends: 81550 [2022-01-18 12:10:23,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 12:10:23,767 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 156 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:10:23,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 505 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:10:24,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81550 states. [2022-01-18 12:10:25,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81550 to 44887. [2022-01-18 12:10:25,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44887 states, 44886 states have (on average 4.536447890210757) internal successors, (203623), 44886 states have internal predecessors, (203623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:25,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44887 states to 44887 states and 203623 transitions. [2022-01-18 12:10:25,994 INFO L78 Accepts]: Start accepts. Automaton has 44887 states and 203623 transitions. Word has length 96 [2022-01-18 12:10:25,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:10:25,994 INFO L470 AbstractCegarLoop]: Abstraction has 44887 states and 203623 transitions. [2022-01-18 12:10:25,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:25,995 INFO L276 IsEmpty]: Start isEmpty. Operand 44887 states and 203623 transitions. [2022-01-18 12:10:26,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-18 12:10:26,104 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:10:26,104 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:10:26,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 12:10:26,104 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 12:10:26,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:10:26,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1143011957, now seen corresponding path program 9 times [2022-01-18 12:10:26,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:10:26,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759219871] [2022-01-18 12:10:26,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:10:26,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:10:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:10:26,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:10:26,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:10:26,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759219871] [2022-01-18 12:10:26,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759219871] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 12:10:26,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 12:10:26,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 12:10:26,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530207103] [2022-01-18 12:10:26,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 12:10:26,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 12:10:26,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:10:26,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 12:10:26,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 12:10:26,142 INFO L87 Difference]: Start difference. First operand 44887 states and 203623 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:26,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:10:26,596 INFO L93 Difference]: Finished difference Result 56854 states and 258625 transitions. [2022-01-18 12:10:26,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 12:10:26,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-18 12:10:26,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:10:26,829 INFO L225 Difference]: With dead ends: 56854 [2022-01-18 12:10:26,829 INFO L226 Difference]: Without dead ends: 56134 [2022-01-18 12:10:26,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 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 12:10:26,829 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 88 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:10:26,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 343 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 12:10:26,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56134 states. [2022-01-18 12:10:28,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56134 to 44563. [2022-01-18 12:10:28,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44563 states, 44562 states have (on average 4.535972353125982) internal successors, (202132), 44562 states have internal predecessors, (202132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:28,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44563 states to 44563 states and 202132 transitions. [2022-01-18 12:10:28,496 INFO L78 Accepts]: Start accepts. Automaton has 44563 states and 202132 transitions. Word has length 96 [2022-01-18 12:10:28,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:10:28,496 INFO L470 AbstractCegarLoop]: Abstraction has 44563 states and 202132 transitions. [2022-01-18 12:10:28,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:28,496 INFO L276 IsEmpty]: Start isEmpty. Operand 44563 states and 202132 transitions. [2022-01-18 12:10:28,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 12:10:28,989 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:10:28,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:10:28,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 12:10:28,989 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 12:10:28,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:10:28,989 INFO L85 PathProgramCache]: Analyzing trace with hash 669224837, now seen corresponding path program 1 times [2022-01-18 12:10:28,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:10:28,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818894943] [2022-01-18 12:10:28,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:10:28,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:10:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:10:29,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:10:29,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:10:29,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818894943] [2022-01-18 12:10:29,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818894943] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:10:29,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601683933] [2022-01-18 12:10:29,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:10:29,100 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:10:29,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:10:29,101 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 12:10:29,102 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 12:10:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:10:29,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 17 conjunts are in the unsatisfiable core [2022-01-18 12:10:29,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:10:29,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:10:29,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:10:29,878 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:10:29,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601683933] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:10:29,878 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:10:29,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 10 [2022-01-18 12:10:29,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129714458] [2022-01-18 12:10:29,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:10:29,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 12:10:29,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:10:29,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 12:10:29,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 12:10:29,881 INFO L87 Difference]: Start difference. First operand 44563 states and 202132 transitions. Second operand has 10 states, 10 states have (on average 18.8) internal successors, (188), 10 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:32,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:10:32,015 INFO L93 Difference]: Finished difference Result 216024 states and 976955 transitions. [2022-01-18 12:10:32,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 12:10:32,015 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.8) internal successors, (188), 10 states have internal predecessors, (188), 0 states have call successors, (0), 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 12:10:32,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:10:33,763 INFO L225 Difference]: With dead ends: 216024 [2022-01-18 12:10:33,763 INFO L226 Difference]: Without dead ends: 208605 [2022-01-18 12:10:33,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 196 SyntacticMatches, 6 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-01-18 12:10:33,763 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 301 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1559 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 12:10:33,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 1559 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 12:10:34,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208605 states. [2022-01-18 12:10:39,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208605 to 182384. [2022-01-18 12:10:39,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182384 states, 182383 states have (on average 4.5979395009403285) internal successors, (838586), 182383 states have internal predecessors, (838586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:41,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182384 states to 182384 states and 838586 transitions. [2022-01-18 12:10:41,477 INFO L78 Accepts]: Start accepts. Automaton has 182384 states and 838586 transitions. Word has length 101 [2022-01-18 12:10:41,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:10:41,478 INFO L470 AbstractCegarLoop]: Abstraction has 182384 states and 838586 transitions. [2022-01-18 12:10:41,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.8) internal successors, (188), 10 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:41,478 INFO L276 IsEmpty]: Start isEmpty. Operand 182384 states and 838586 transitions. [2022-01-18 12:10:42,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 12:10:42,083 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:10:42,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:10:42,100 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 12:10:42,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-01-18 12:10:42,287 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 12:10:42,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:10:42,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1185760927, now seen corresponding path program 2 times [2022-01-18 12:10:42,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:10:42,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557294072] [2022-01-18 12:10:42,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:10:42,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:10:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:10:42,383 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:10:42,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:10:42,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557294072] [2022-01-18 12:10:42,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557294072] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:10:42,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583917352] [2022-01-18 12:10:42,383 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 12:10:42,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:10:42,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:10:42,384 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 12:10:42,385 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 12:10:42,472 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 12:10:42,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:10:42,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 17 conjunts are in the unsatisfiable core [2022-01-18 12:10:42,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:10:42,900 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 12:10:42,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:10:43,267 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:10:43,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583917352] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:10:43,268 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:10:43,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 12 [2022-01-18 12:10:43,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500968643] [2022-01-18 12:10:43,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:10:43,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 12:10:43,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:10:43,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 12:10:43,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-01-18 12:10:43,270 INFO L87 Difference]: Start difference. First operand 182384 states and 838586 transitions. Second operand has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:10:48,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:10:48,437 INFO L93 Difference]: Finished difference Result 438427 states and 1998890 transitions. [2022-01-18 12:10:48,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 12:10:48,437 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 states have internal predecessors, (188), 0 states have call successors, (0), 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 12:10:48,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:10:51,759 INFO L225 Difference]: With dead ends: 438427 [2022-01-18 12:10:51,760 INFO L226 Difference]: Without dead ends: 425167 [2022-01-18 12:10:51,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 195 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-01-18 12:10:51,760 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 438 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 12:10:51,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 2256 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 12:10:53,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425167 states. [2022-01-18 12:11:02,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425167 to 232114. [2022-01-18 12:11:02,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232114 states, 232113 states have (on average 4.6060410231223585) internal successors, (1069122), 232113 states have internal predecessors, (1069122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:11:04,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232114 states to 232114 states and 1069122 transitions. [2022-01-18 12:11:04,442 INFO L78 Accepts]: Start accepts. Automaton has 232114 states and 1069122 transitions. Word has length 101 [2022-01-18 12:11:04,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:11:04,442 INFO L470 AbstractCegarLoop]: Abstraction has 232114 states and 1069122 transitions. [2022-01-18 12:11:04,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:11:04,442 INFO L276 IsEmpty]: Start isEmpty. Operand 232114 states and 1069122 transitions. [2022-01-18 12:11:05,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-18 12:11:05,816 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:11:05,816 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:11:05,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-18 12:11:06,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:11:06,017 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 12:11:06,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:11:06,017 INFO L85 PathProgramCache]: Analyzing trace with hash -241064789, now seen corresponding path program 3 times [2022-01-18 12:11:06,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:11:06,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530343320] [2022-01-18 12:11:06,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:11:06,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:11:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:11:06,076 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:11:06,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:11:06,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530343320] [2022-01-18 12:11:06,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530343320] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:11:06,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807930184] [2022-01-18 12:11:06,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 12:11:06,077 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:11:06,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:11:06,078 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:11:06,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 12:11:06,167 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-18 12:11:06,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:11:06,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 12:11:06,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:11:06,416 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:11:06,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:11:06,580 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:11:06,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807930184] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:11:06,580 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:11:06,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-01-18 12:11:06,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281666440] [2022-01-18 12:11:06,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:11:06,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 12:11:06,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:11:06,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 12:11:06,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-01-18 12:11:06,581 INFO L87 Difference]: Start difference. First operand 232114 states and 1069122 transitions. Second operand has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:11:11,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:11:11,806 INFO L93 Difference]: Finished difference Result 443406 states and 2039796 transitions. [2022-01-18 12:11:11,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 12:11:11,806 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 0 states have call successors, (0), 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 106 [2022-01-18 12:11:11,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:11:15,079 INFO L225 Difference]: With dead ends: 443406 [2022-01-18 12:11:15,080 INFO L226 Difference]: Without dead ends: 433839 [2022-01-18 12:11:15,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 207 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=601, Unknown=0, NotChecked=0, Total=756 [2022-01-18 12:11:15,080 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 725 mSDsluCounter, 2338 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 2348 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 12:11:15,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [725 Valid, 2348 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 12:11:16,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433839 states. [2022-01-18 12:11:27,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433839 to 232750. [2022-01-18 12:11:28,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232750 states, 232749 states have (on average 4.604238901133839) internal successors, (1071632), 232749 states have internal predecessors, (1071632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:11:30,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232750 states to 232750 states and 1071632 transitions. [2022-01-18 12:11:30,105 INFO L78 Accepts]: Start accepts. Automaton has 232750 states and 1071632 transitions. Word has length 106 [2022-01-18 12:11:30,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:11:30,105 INFO L470 AbstractCegarLoop]: Abstraction has 232750 states and 1071632 transitions. [2022-01-18 12:11:30,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:11:30,105 INFO L276 IsEmpty]: Start isEmpty. Operand 232750 states and 1071632 transitions. [2022-01-18 12:11:30,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-18 12:11:30,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:11:30,914 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:11:30,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-18 12:11:31,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-01-18 12:11:31,124 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 12:11:31,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:11:31,124 INFO L85 PathProgramCache]: Analyzing trace with hash -208197391, now seen corresponding path program 4 times [2022-01-18 12:11:31,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:11:31,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386995318] [2022-01-18 12:11:31,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:11:31,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:11:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:11:31,178 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:11:31,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:11:31,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386995318] [2022-01-18 12:11:31,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386995318] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:11:31,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404432696] [2022-01-18 12:11:31,178 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 12:11:31,178 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:11:31,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:11:31,179 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:11:31,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-18 12:11:31,268 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 12:11:31,268 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:11:31,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 12:11:31,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:11:31,424 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:11:31,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:11:31,573 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:11:31,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404432696] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:11:31,573 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:11:31,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-01-18 12:11:31,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794462081] [2022-01-18 12:11:31,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:11:31,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 12:11:31,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:11:31,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 12:11:31,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-01-18 12:11:31,574 INFO L87 Difference]: Start difference. First operand 232750 states and 1071632 transitions. Second operand has 16 states, 16 states have (on average 7.9375) internal successors, (127), 16 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:11:38,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:11:38,822 INFO L93 Difference]: Finished difference Result 547682 states and 2530959 transitions. [2022-01-18 12:11:38,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 12:11:38,822 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.9375) internal successors, (127), 16 states have internal predecessors, (127), 0 states have call successors, (0), 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 106 [2022-01-18 12:11:38,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:11:44,377 INFO L225 Difference]: With dead ends: 547682 [2022-01-18 12:11:44,378 INFO L226 Difference]: Without dead ends: 544835 [2022-01-18 12:11:44,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 207 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=255, Invalid=867, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 12:11:44,378 INFO L933 BasicCegarLoop]: 423 mSDtfsCounter, 882 mSDsluCounter, 2998 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 2997 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 12:11:44,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [882 Valid, 2997 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 12:11:45,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544835 states. [2022-01-18 12:11:58,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544835 to 346362. [2022-01-18 12:12:00,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346362 states, 346361 states have (on average 4.610233253743926) internal successors, (1596805), 346361 states have internal predecessors, (1596805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:12:02,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346362 states to 346362 states and 1596805 transitions. [2022-01-18 12:12:02,514 INFO L78 Accepts]: Start accepts. Automaton has 346362 states and 1596805 transitions. Word has length 106 [2022-01-18 12:12:02,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:12:02,514 INFO L470 AbstractCegarLoop]: Abstraction has 346362 states and 1596805 transitions. [2022-01-18 12:12:02,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.9375) internal successors, (127), 16 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:12:02,514 INFO L276 IsEmpty]: Start isEmpty. Operand 346362 states and 1596805 transitions. [2022-01-18 12:12:05,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-18 12:12:05,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:12:05,164 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:12:05,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-18 12:12:05,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-01-18 12:12:05,376 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 12:12:05,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:12:05,377 INFO L85 PathProgramCache]: Analyzing trace with hash -993402503, now seen corresponding path program 5 times [2022-01-18 12:12:05,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:12:05,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238543322] [2022-01-18 12:12:05,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:12:05,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:12:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:12:05,470 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 12:12:05,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:12:05,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238543322] [2022-01-18 12:12:05,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238543322] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:12:05,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029276318] [2022-01-18 12:12:05,470 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 12:12:05,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:12:05,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:12:05,471 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:12:05,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-18 12:12:05,569 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 12:12:05,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:12:05,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 12:12:05,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:12:05,857 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:12:05,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:12:06,059 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:12:06,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029276318] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:12:06,059 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:12:06,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-01-18 12:12:06,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787078300] [2022-01-18 12:12:06,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:12:06,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 12:12:06,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:12:06,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 12:12:06,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-18 12:12:06,062 INFO L87 Difference]: Start difference. First operand 346362 states and 1596805 transitions. Second operand has 19 states, 19 states have (on average 9.105263157894736) internal successors, (173), 19 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:12:29,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 12:12:29,902 INFO L93 Difference]: Finished difference Result 1621044 states and 7420279 transitions. [2022-01-18 12:12:29,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2022-01-18 12:12:29,903 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 9.105263157894736) internal successors, (173), 19 states have internal predecessors, (173), 0 states have call successors, (0), 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 106 [2022-01-18 12:12:29,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 12:12:46,052 INFO L225 Difference]: With dead ends: 1621044 [2022-01-18 12:12:46,052 INFO L226 Difference]: Without dead ends: 1591065 [2022-01-18 12:12:46,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 374 SyntacticMatches, 1 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14182 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=4658, Invalid=32014, Unknown=0, NotChecked=0, Total=36672 [2022-01-18 12:12:46,058 INFO L933 BasicCegarLoop]: 731 mSDtfsCounter, 3005 mSDsluCounter, 7949 mSDsCounter, 0 mSdLazyCounter, 3908 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3005 SdHoareTripleChecker+Valid, 7458 SdHoareTripleChecker+Invalid, 4010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 3908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-18 12:12:46,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3005 Valid, 7458 Invalid, 4010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 3908 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-18 12:12:49,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1591065 states. [2022-01-18 12:13:33,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1591065 to 538544. [2022-01-18 12:13:34,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538544 states, 538543 states have (on average 4.712776881326096) internal successors, (2538033), 538543 states have internal predecessors, (2538033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:13:41,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538544 states to 538544 states and 2538033 transitions. [2022-01-18 12:13:41,574 INFO L78 Accepts]: Start accepts. Automaton has 538544 states and 2538033 transitions. Word has length 106 [2022-01-18 12:13:41,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 12:13:41,575 INFO L470 AbstractCegarLoop]: Abstraction has 538544 states and 2538033 transitions. [2022-01-18 12:13:41,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.105263157894736) internal successors, (173), 19 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 12:13:41,575 INFO L276 IsEmpty]: Start isEmpty. Operand 538544 states and 2538033 transitions. [2022-01-18 12:13:45,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-18 12:13:45,731 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 12:13:45,731 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 12:13:45,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-18 12:13:45,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2022-01-18 12:13:45,931 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 12:13:45,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 12:13:45,932 INFO L85 PathProgramCache]: Analyzing trace with hash -256053521, now seen corresponding path program 6 times [2022-01-18 12:13:45,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 12:13:45,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437831268] [2022-01-18 12:13:45,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 12:13:45,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 12:13:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 12:13:46,031 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:13:46,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 12:13:46,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437831268] [2022-01-18 12:13:46,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437831268] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 12:13:46,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298270079] [2022-01-18 12:13:46,032 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 12:13:46,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 12:13:46,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 12:13:46,033 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 12:13:46,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-18 12:13:46,155 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-01-18 12:13:46,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 12:13:46,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-18 12:13:46,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 12:13:46,406 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:13:46,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 12:13:46,568 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 12:13:46,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298270079] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 12:13:46,568 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 12:13:46,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-01-18 12:13:46,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863547648] [2022-01-18 12:13:46,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 12:13:46,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 12:13:46,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 12:13:46,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 12:13:46,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-01-18 12:13:46,569 INFO L87 Difference]: Start difference. First operand 538544 states and 2538033 transitions. Second operand has 19 states, 19 states have (on average 10.894736842105264) internal successors, (207), 19 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)