/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ntdrivers-simplified/diskperf_simpl1.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 15:23:00,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 15:23:00,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 15:23:00,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 15:23:00,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 15:23:00,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 15:23:00,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 15:23:00,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 15:23:00,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 15:23:00,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 15:23:00,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 15:23:00,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 15:23:00,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 15:23:00,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 15:23:00,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 15:23:00,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 15:23:00,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 15:23:00,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 15:23:00,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 15:23:00,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 15:23:00,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 15:23:00,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 15:23:00,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 15:23:00,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 15:23:00,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 15:23:00,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 15:23:00,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 15:23:00,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 15:23:00,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 15:23:00,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 15:23:00,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 15:23:00,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 15:23:00,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 15:23:00,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 15:23:00,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 15:23:00,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 15:23:00,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 15:23:00,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 15:23:00,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 15:23:00,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 15:23:00,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 15:23:00,461 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 15:23:00,488 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 15:23:00,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 15:23:00,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 15:23:00,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 15:23:00,491 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 15:23:00,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 15:23:00,491 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 15:23:00,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 15:23:00,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 15:23:00,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 15:23:00,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 15:23:00,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 15:23:00,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 15:23:00,492 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 15:23:00,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 15:23:00,493 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 15:23:00,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 15:23:00,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 15:23:00,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 15:23:00,493 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 15:23:00,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 15:23:00,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 15:23:00,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 15:23:00,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 15:23:00,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 15:23:00,495 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 15:23:00,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 15:23:00,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 15:23:00,495 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 15:23:00,495 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 15:23:00,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 15:23:00,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 15:23:00,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 15:23:00,997 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 15:23:00,998 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 15:23:00,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/diskperf_simpl1.cil.c [2020-10-28 15:23:01,085 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/067a275a4/0ee065cf58ee4146bde8b21111ef1764/FLAG70aeae738 [2020-10-28 15:23:01,839 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 15:23:01,840 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/diskperf_simpl1.cil.c [2020-10-28 15:23:01,855 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/067a275a4/0ee065cf58ee4146bde8b21111ef1764/FLAG70aeae738 [2020-10-28 15:23:02,074 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/067a275a4/0ee065cf58ee4146bde8b21111ef1764 [2020-10-28 15:23:02,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 15:23:02,086 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 15:23:02,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 15:23:02,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 15:23:02,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 15:23:02,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:23:02" (1/1) ... [2020-10-28 15:23:02,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6823a1ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:23:02, skipping insertion in model container [2020-10-28 15:23:02,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:23:02" (1/1) ... [2020-10-28 15:23:02,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 15:23:02,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 15:23:02,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 15:23:02,554 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 15:23:02,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 15:23:02,736 INFO L208 MainTranslator]: Completed translation [2020-10-28 15:23:02,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:23:02 WrapperNode [2020-10-28 15:23:02,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 15:23:02,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 15:23:02,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 15:23:02,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 15:23:02,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:23:02" (1/1) ... [2020-10-28 15:23:02,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:23:02" (1/1) ... [2020-10-28 15:23:02,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:23:02" (1/1) ... [2020-10-28 15:23:02,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:23:02" (1/1) ... [2020-10-28 15:23:02,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:23:02" (1/1) ... [2020-10-28 15:23:02,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:23:02" (1/1) ... [2020-10-28 15:23:02,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:23:02" (1/1) ... [2020-10-28 15:23:02,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 15:23:02,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 15:23:02,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 15:23:02,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 15:23:02,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:23:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 15:23:02,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 15:23:02,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 15:23:02,980 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 15:23:02,980 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-10-28 15:23:02,981 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-10-28 15:23:02,981 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfSyncFilterWithTarget [2020-10-28 15:23:02,982 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfDispatchPnp [2020-10-28 15:23:02,982 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfIrpCompletion [2020-10-28 15:23:02,982 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfStartDevice [2020-10-28 15:23:02,982 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfRemoveDevice [2020-10-28 15:23:02,983 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfSendToNextDriver [2020-10-28 15:23:02,983 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfDispatchPower [2020-10-28 15:23:02,983 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfForwardIrpSynchronous [2020-10-28 15:23:02,984 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfCreate [2020-10-28 15:23:02,984 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfIoCompletion [2020-10-28 15:23:02,985 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfDeviceControl [2020-10-28 15:23:02,985 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfShutdownFlush [2020-10-28 15:23:02,985 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfUnload [2020-10-28 15:23:02,985 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfRegisterDevice [2020-10-28 15:23:02,985 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-10-28 15:23:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 15:23:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2020-10-28 15:23:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-10-28 15:23:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-10-28 15:23:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-10-28 15:23:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-10-28 15:23:02,986 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-10-28 15:23:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-10-28 15:23:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 15:23:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 15:23:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 15:23:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 15:23:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 15:23:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 15:23:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-28 15:23:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfDispatchPnp [2020-10-28 15:23:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfIrpCompletion [2020-10-28 15:23:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfStartDevice [2020-10-28 15:23:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfRemoveDevice [2020-10-28 15:23:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfSendToNextDriver [2020-10-28 15:23:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfDispatchPower [2020-10-28 15:23:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfForwardIrpSynchronous [2020-10-28 15:23:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfCreate [2020-10-28 15:23:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfIoCompletion [2020-10-28 15:23:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfDeviceControl [2020-10-28 15:23:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfShutdownFlush [2020-10-28 15:23:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfRegisterDevice [2020-10-28 15:23:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2020-10-28 15:23:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-10-28 15:23:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-10-28 15:23:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-10-28 15:23:02,991 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-10-28 15:23:02,991 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-10-28 15:23:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-10-28 15:23:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-10-28 15:23:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfSyncFilterWithTarget [2020-10-28 15:23:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfUnload [2020-10-28 15:23:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-10-28 15:23:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 15:23:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-10-28 15:23:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 15:23:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 15:23:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 15:23:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 15:23:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 15:23:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 15:23:03,483 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-28 15:23:03,689 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-10-28 15:23:03,689 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-10-28 15:23:03,699 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-28 15:23:03,744 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2020-10-28 15:23:03,744 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2020-10-28 15:23:03,763 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-28 15:23:03,781 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-10-28 15:23:03,781 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-10-28 15:23:03,787 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-28 15:23:03,798 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2020-10-28 15:23:03,799 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2020-10-28 15:23:04,058 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-28 15:23:04,108 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2020-10-28 15:23:04,108 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2020-10-28 15:23:04,159 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-28 15:23:04,191 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2020-10-28 15:23:04,192 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2020-10-28 15:23:04,259 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 15:23:04,260 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 15:23:04,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:23:04 BoogieIcfgContainer [2020-10-28 15:23:04,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 15:23:04,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 15:23:04,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 15:23:04,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 15:23:04,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 03:23:02" (1/3) ... [2020-10-28 15:23:04,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b2b097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:23:04, skipping insertion in model container [2020-10-28 15:23:04,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:23:02" (2/3) ... [2020-10-28 15:23:04,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b2b097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:23:04, skipping insertion in model container [2020-10-28 15:23:04,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:23:04" (3/3) ... [2020-10-28 15:23:04,272 INFO L111 eAbstractionObserver]: Analyzing ICFG diskperf_simpl1.cil.c [2020-10-28 15:23:04,284 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 15:23:04,290 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 15:23:04,311 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 15:23:04,341 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 15:23:04,341 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 15:23:04,341 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 15:23:04,342 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 15:23:04,342 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 15:23:04,342 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 15:23:04,342 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 15:23:04,342 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 15:23:04,368 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states. [2020-10-28 15:23:04,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-28 15:23:04,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:23:04,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:23:04,377 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:23:04,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:23:04,384 INFO L82 PathProgramCache]: Analyzing trace with hash 407950487, now seen corresponding path program 1 times [2020-10-28 15:23:04,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:23:04,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1600725430] [2020-10-28 15:23:04,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:23:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:04,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:04,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:04,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:04,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:05,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:05,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:05,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 15:23:05,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 15:23:05,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 774 [2020-10-28 15:23:05,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:05,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:05,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:05,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 15:23:05,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 15:23:05,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 15:23:05,566 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 15:23:05,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:23:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:05,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:05,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:05,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:05,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:05,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 15:23:05,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:05,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:05,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:05,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:05,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:05,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:23:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:05,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:05,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:05,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:05,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:05,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 15:23:05,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:05,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:05,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:05,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:05,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:23:05,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:23:05,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1600725430] [2020-10-28 15:23:05,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:23:05,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 15:23:05,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946758887] [2020-10-28 15:23:05,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 15:23:05,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:23:05,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 15:23:05,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 15:23:05,695 INFO L87 Difference]: Start difference. First operand 299 states. Second operand 5 states. [2020-10-28 15:23:08,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:23:08,297 INFO L93 Difference]: Finished difference Result 797 states and 1186 transitions. [2020-10-28 15:23:08,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 15:23:08,299 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-28 15:23:08,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:23:08,333 INFO L225 Difference]: With dead ends: 797 [2020-10-28 15:23:08,333 INFO L226 Difference]: Without dead ends: 548 [2020-10-28 15:23:08,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 15:23:08,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-10-28 15:23:08,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 477. [2020-10-28 15:23:08,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-10-28 15:23:08,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 650 transitions. [2020-10-28 15:23:08,503 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 650 transitions. Word has length 21 [2020-10-28 15:23:08,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:23:08,504 INFO L481 AbstractCegarLoop]: Abstraction has 477 states and 650 transitions. [2020-10-28 15:23:08,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 15:23:08,504 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 650 transitions. [2020-10-28 15:23:08,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-28 15:23:08,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:23:08,506 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:23:08,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 15:23:08,507 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:23:08,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:23:08,509 INFO L82 PathProgramCache]: Analyzing trace with hash -36741692, now seen corresponding path program 1 times [2020-10-28 15:23:08,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:23:08,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1723825741] [2020-10-28 15:23:08,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:23:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:08,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:08,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:08,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 15:23:08,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:08,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-28 15:23:08,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:08,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:08,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:08,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 15:23:08,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 15:23:08,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:08,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:23:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:08,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:08,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:08,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:08,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:08,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 15:23:08,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:08,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:08,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:08,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:08,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:08,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:08,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:23:08,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:08,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:08,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:08,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:08,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:08,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 15:23:08,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:08,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:08,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:08,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:08,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:23:08,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:23:08,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:23:08,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1723825741] [2020-10-28 15:23:08,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:23:08,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 15:23:08,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91580546] [2020-10-28 15:23:08,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 15:23:08,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:23:08,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 15:23:08,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 15:23:08,898 INFO L87 Difference]: Start difference. First operand 477 states and 650 transitions. Second operand 5 states. [2020-10-28 15:23:10,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:23:10,604 INFO L93 Difference]: Finished difference Result 548 states and 758 transitions. [2020-10-28 15:23:10,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 15:23:10,605 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-28 15:23:10,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:23:10,616 INFO L225 Difference]: With dead ends: 548 [2020-10-28 15:23:10,616 INFO L226 Difference]: Without dead ends: 531 [2020-10-28 15:23:10,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:23:10,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2020-10-28 15:23:10,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 477. [2020-10-28 15:23:10,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-10-28 15:23:10,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 649 transitions. [2020-10-28 15:23:10,749 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 649 transitions. Word has length 21 [2020-10-28 15:23:10,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:23:10,752 INFO L481 AbstractCegarLoop]: Abstraction has 477 states and 649 transitions. [2020-10-28 15:23:10,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 15:23:10,754 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 649 transitions. [2020-10-28 15:23:10,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-28 15:23:10,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:23:10,756 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:23:10,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 15:23:10,757 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:23:10,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:23:10,758 INFO L82 PathProgramCache]: Analyzing trace with hash -711791717, now seen corresponding path program 1 times [2020-10-28 15:23:10,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:23:10,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692814637] [2020-10-28 15:23:10,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:23:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:10,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:11,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:11,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-28 15:23:11,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:11,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-28 15:23:11,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:11,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 15:23:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-28 15:23:11,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 15:23:11,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:11,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:23:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:11,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:11,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:11,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:11,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:11,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 15:23:11,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:11,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:11,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:11,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:11,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:11,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 15:23:11,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:23:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:11,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:11,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:11,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:11,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:11,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:23:11,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:11,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:11,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:11,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:11,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:11,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:11,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:23:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:11,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:11,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:11,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:11,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:11,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:23:11,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:11,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:23:11,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:11,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:23:11,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1692814637] [2020-10-28 15:23:11,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:23:11,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 15:23:11,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521224626] [2020-10-28 15:23:11,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 15:23:11,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:23:11,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 15:23:11,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:23:11,326 INFO L87 Difference]: Start difference. First operand 477 states and 649 transitions. Second operand 6 states. [2020-10-28 15:23:14,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:23:14,395 INFO L93 Difference]: Finished difference Result 1227 states and 1761 transitions. [2020-10-28 15:23:14,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 15:23:14,396 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-10-28 15:23:14,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:23:14,407 INFO L225 Difference]: With dead ends: 1227 [2020-10-28 15:23:14,408 INFO L226 Difference]: Without dead ends: 879 [2020-10-28 15:23:14,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:23:14,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2020-10-28 15:23:14,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 760. [2020-10-28 15:23:14,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 760 states. [2020-10-28 15:23:14,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1093 transitions. [2020-10-28 15:23:14,512 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1093 transitions. Word has length 26 [2020-10-28 15:23:14,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:23:14,513 INFO L481 AbstractCegarLoop]: Abstraction has 760 states and 1093 transitions. [2020-10-28 15:23:14,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 15:23:14,513 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1093 transitions. [2020-10-28 15:23:14,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-28 15:23:14,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:23:14,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:23:14,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 15:23:14,523 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:23:14,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:23:14,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1685384874, now seen corresponding path program 1 times [2020-10-28 15:23:14,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:23:14,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1061098208] [2020-10-28 15:23:14,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:23:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:14,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:15,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:15,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-28 15:23:15,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:15,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-10-28 15:23:15,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:15,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 15:23:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-28 15:23:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 15:23:15,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:15,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:23:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:15,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:15,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:15,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:15,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:15,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 15:23:15,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:15,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:15,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:15,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:15,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:15,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:15,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:23:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:15,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:15,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:15,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:15,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:15,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 15:23:15,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:15,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:15,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:15,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:15,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:15,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:15,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:23:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:15,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:15,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:15,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:15,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:15,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:23:15,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:15,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:15,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:15,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:15,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:23:15,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:23:15,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:23:15,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1061098208] [2020-10-28 15:23:15,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:23:15,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 15:23:15,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691747887] [2020-10-28 15:23:15,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 15:23:15,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:23:15,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 15:23:15,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:23:15,355 INFO L87 Difference]: Start difference. First operand 760 states and 1093 transitions. Second operand 6 states. [2020-10-28 15:23:15,497 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 15:23:17,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:23:17,901 INFO L93 Difference]: Finished difference Result 1754 states and 2636 transitions. [2020-10-28 15:23:17,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 15:23:17,902 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-10-28 15:23:17,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:23:17,913 INFO L225 Difference]: With dead ends: 1754 [2020-10-28 15:23:17,914 INFO L226 Difference]: Without dead ends: 1155 [2020-10-28 15:23:17,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:23:17,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2020-10-28 15:23:18,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1044. [2020-10-28 15:23:18,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2020-10-28 15:23:18,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1560 transitions. [2020-10-28 15:23:18,043 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1560 transitions. Word has length 32 [2020-10-28 15:23:18,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:23:18,043 INFO L481 AbstractCegarLoop]: Abstraction has 1044 states and 1560 transitions. [2020-10-28 15:23:18,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 15:23:18,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1560 transitions. [2020-10-28 15:23:18,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-28 15:23:18,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:23:18,047 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:23:18,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 15:23:18,047 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:23:18,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:23:18,048 INFO L82 PathProgramCache]: Analyzing trace with hash -90516912, now seen corresponding path program 1 times [2020-10-28 15:23:18,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:23:18,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1323041400] [2020-10-28 15:23:18,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:23:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:18,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:18,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:18,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-28 15:23:18,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:18,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-28 15:23:18,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:18,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:18,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:23:18,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-28 15:23:18,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 15:23:18,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:18,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:23:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:18,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:18,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:18,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:18,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:18,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 15:23:18,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:18,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:18,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:18,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:18,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:18,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:18,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:23:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:18,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:18,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:18,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:18,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:18,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:23:18,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:18,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:18,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:18,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:18,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:18,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:18,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:23:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:18,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:18,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:18,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:18,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:18,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:23:18,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:18,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:18,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:18,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:18,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:18,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:18,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:23:18,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1323041400] [2020-10-28 15:23:18,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:23:18,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 15:23:18,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675604303] [2020-10-28 15:23:18,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 15:23:18,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:23:18,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 15:23:18,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:23:18,555 INFO L87 Difference]: Start difference. First operand 1044 states and 1560 transitions. Second operand 6 states. [2020-10-28 15:23:20,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:23:20,184 INFO L93 Difference]: Finished difference Result 1109 states and 1654 transitions. [2020-10-28 15:23:20,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 15:23:20,188 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-10-28 15:23:20,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:23:20,196 INFO L225 Difference]: With dead ends: 1109 [2020-10-28 15:23:20,197 INFO L226 Difference]: Without dead ends: 1104 [2020-10-28 15:23:20,198 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 15:23:20,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2020-10-28 15:23:20,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1054. [2020-10-28 15:23:20,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1054 states. [2020-10-28 15:23:20,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1573 transitions. [2020-10-28 15:23:20,297 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1573 transitions. Word has length 37 [2020-10-28 15:23:20,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:23:20,298 INFO L481 AbstractCegarLoop]: Abstraction has 1054 states and 1573 transitions. [2020-10-28 15:23:20,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 15:23:20,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1573 transitions. [2020-10-28 15:23:20,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-28 15:23:20,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:23:20,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:23:20,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 15:23:20,300 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:23:20,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:23:20,301 INFO L82 PathProgramCache]: Analyzing trace with hash 314534961, now seen corresponding path program 1 times [2020-10-28 15:23:20,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:23:20,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822700116] [2020-10-28 15:23:20,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:23:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:20,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:20,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:20,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-28 15:23:20,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:20,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-28 15:23:20,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:20,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:20,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:20,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-28 15:23:20,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 15:23:20,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:23:20,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:23:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:20,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:20,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:20,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:20,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:20,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 15:23:20,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:20,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:20,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:20,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:20,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:20,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:23:20,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:23:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:20,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:20,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:20,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:20,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:20,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:23:20,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:20,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:20,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:20,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:20,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:20,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:23:20,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:23:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:20,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:20,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:20,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:20,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:20,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:23:20,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:20,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:20,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:20,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:20,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:20,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:23:20,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 15:23:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:20,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:20,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:20,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 15:23:20,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:20,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:23:20,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:20,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:20,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:20,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:20,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 15:23:20,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 15:23:20,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:23:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:20,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:20,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:20,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:23:20,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:20,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:23:20,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:20,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:20,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:20,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:20,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 15:23:20,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:23:20,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:23:20,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1822700116] [2020-10-28 15:23:20,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:23:20,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 15:23:20,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425868307] [2020-10-28 15:23:20,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 15:23:20,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:23:20,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 15:23:20,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:23:20,724 INFO L87 Difference]: Start difference. First operand 1054 states and 1573 transitions. Second operand 8 states. [2020-10-28 15:23:22,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:23:22,488 INFO L93 Difference]: Finished difference Result 1165 states and 1723 transitions. [2020-10-28 15:23:22,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 15:23:22,490 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2020-10-28 15:23:22,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:23:22,501 INFO L225 Difference]: With dead ends: 1165 [2020-10-28 15:23:22,502 INFO L226 Difference]: Without dead ends: 1159 [2020-10-28 15:23:22,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-28 15:23:22,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2020-10-28 15:23:22,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1086. [2020-10-28 15:23:22,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1086 states. [2020-10-28 15:23:22,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1607 transitions. [2020-10-28 15:23:22,608 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1607 transitions. Word has length 40 [2020-10-28 15:23:22,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:23:22,609 INFO L481 AbstractCegarLoop]: Abstraction has 1086 states and 1607 transitions. [2020-10-28 15:23:22,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 15:23:22,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1607 transitions. [2020-10-28 15:23:22,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-28 15:23:22,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:23:22,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:23:22,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 15:23:22,611 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:23:22,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:23:22,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1984938704, now seen corresponding path program 1 times [2020-10-28 15:23:22,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:23:22,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [531513438] [2020-10-28 15:23:22,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:23:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:22,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:22,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:22,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:23,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:23,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-28 15:23:23,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:23:23,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 551 [2020-10-28 15:23:23,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:23,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:23,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:23:23,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 15:23:23,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 15:23:23,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:23,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:23:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:23,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:23,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:23,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:23,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:23,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:23:23,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:23,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:23,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:23,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:23,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:23,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:23,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:23:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:23,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:23,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:23,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:23,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:23,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:23:23,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:23,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:23,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:23:23,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:23,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:23:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:23,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:23,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:23,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:23,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:23,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 15:23:23,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:23,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:23,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:23,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:23,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:23:23,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:23,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 15:23:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:23,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:23,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:23,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 15:23:23,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:23,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 15:23:23,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:23,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:23,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:23,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:23,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 15:23:23,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:23,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:23:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:23,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:23,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:23,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:23:23,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:23,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:23:23,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:23,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:23,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:23,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:23:23,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:23:23,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [531513438] [2020-10-28 15:23:23,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:23:23,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 15:23:23,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124431316] [2020-10-28 15:23:23,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 15:23:23,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:23:23,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 15:23:23,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-28 15:23:23,563 INFO L87 Difference]: Start difference. First operand 1086 states and 1607 transitions. Second operand 9 states. [2020-10-28 15:23:24,441 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 15:23:25,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:23:25,619 INFO L93 Difference]: Finished difference Result 1642 states and 2557 transitions. [2020-10-28 15:23:25,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 15:23:25,620 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2020-10-28 15:23:25,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:23:25,636 INFO L225 Difference]: With dead ends: 1642 [2020-10-28 15:23:25,636 INFO L226 Difference]: Without dead ends: 1633 [2020-10-28 15:23:25,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-10-28 15:23:25,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2020-10-28 15:23:25,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1162. [2020-10-28 15:23:25,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1162 states. [2020-10-28 15:23:25,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1723 transitions. [2020-10-28 15:23:25,831 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1723 transitions. Word has length 41 [2020-10-28 15:23:25,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:23:25,832 INFO L481 AbstractCegarLoop]: Abstraction has 1162 states and 1723 transitions. [2020-10-28 15:23:25,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 15:23:25,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1723 transitions. [2020-10-28 15:23:25,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-28 15:23:25,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:23:25,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:23:25,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 15:23:25,834 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:23:25,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:23:25,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1098033445, now seen corresponding path program 1 times [2020-10-28 15:23:25,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:23:25,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1947721329] [2020-10-28 15:23:25,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:23:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:25,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:25,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:26,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:26,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:26,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-28 15:23:26,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:23:26,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 641 [2020-10-28 15:23:26,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:26,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:26,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:23:26,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 15:23:26,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 15:23:26,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:26,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:23:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:26,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:26,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:26,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:26,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:26,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 15:23:26,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:26,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:26,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:26,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:26,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:26,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:26,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:23:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:26,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:26,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:26,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:26,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:26,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 15:23:26,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:26,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:26,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:26,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:26,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:23:26,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:26,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:23:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:26,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:26,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:26,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:26,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:26,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 15:23:26,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:26,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:26,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:26,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:26,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:23:26,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:26,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 15:23:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:26,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:26,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:26,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 15:23:26,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:26,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 15:23:26,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:26,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:26,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 15:23:26,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:23:26,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:23:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:26,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:26,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:26,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:23:26,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:26,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:23:26,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:26,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:26,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:26,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:26,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:23:26,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1947721329] [2020-10-28 15:23:26,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:23:26,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 15:23:26,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216390270] [2020-10-28 15:23:26,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 15:23:26,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:23:26,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 15:23:26,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-28 15:23:26,962 INFO L87 Difference]: Start difference. First operand 1162 states and 1723 transitions. Second operand 10 states. [2020-10-28 15:23:27,124 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 15:23:27,913 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-28 15:23:30,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:23:30,068 INFO L93 Difference]: Finished difference Result 1897 states and 3068 transitions. [2020-10-28 15:23:30,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 15:23:30,069 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2020-10-28 15:23:30,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:23:30,085 INFO L225 Difference]: With dead ends: 1897 [2020-10-28 15:23:30,085 INFO L226 Difference]: Without dead ends: 1886 [2020-10-28 15:23:30,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-10-28 15:23:30,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states. [2020-10-28 15:23:30,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 1657. [2020-10-28 15:23:30,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1657 states. [2020-10-28 15:23:30,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 2672 transitions. [2020-10-28 15:23:30,282 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 2672 transitions. Word has length 42 [2020-10-28 15:23:30,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:23:30,284 INFO L481 AbstractCegarLoop]: Abstraction has 1657 states and 2672 transitions. [2020-10-28 15:23:30,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 15:23:30,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 2672 transitions. [2020-10-28 15:23:30,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-28 15:23:30,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:23:30,287 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:23:30,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 15:23:30,287 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:23:30,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:23:30,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1385305927, now seen corresponding path program 1 times [2020-10-28 15:23:30,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:23:30,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116571003] [2020-10-28 15:23:30,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:23:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:30,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:30,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:30,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-28 15:23:30,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:30,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-28 15:23:30,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:30,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:30,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:23:30,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-28 15:23:30,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 15:23:30,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:30,643 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 15:23:30,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:23:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:30,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:30,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:30,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:30,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:30,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:23:30,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:30,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:30,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:30,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:30,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:30,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:30,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:23:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:30,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:30,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:30,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:30,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:30,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:23:30,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:30,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:30,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:30,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:30,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:30,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:30,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:23:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:30,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:30,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:30,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:30,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:30,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:23:30,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:30,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:30,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:30,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:30,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:30,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:30,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 15:23:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:30,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:30,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:30,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 15:23:30,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:30,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 15:23:30,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:30,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:30,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:23:30,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:30,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 15:23:30,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:30,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:23:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:30,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:30,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:30,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:23:30,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:30,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:23:30,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:30,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:30,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:30,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:30,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:30,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:30,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:23:30,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116571003] [2020-10-28 15:23:30,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:23:30,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 15:23:30,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893188150] [2020-10-28 15:23:30,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 15:23:30,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:23:30,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 15:23:30,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-28 15:23:30,811 INFO L87 Difference]: Start difference. First operand 1657 states and 2672 transitions. Second operand 10 states. [2020-10-28 15:23:32,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:23:32,825 INFO L93 Difference]: Finished difference Result 1764 states and 2824 transitions. [2020-10-28 15:23:32,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 15:23:32,825 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 43 [2020-10-28 15:23:32,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:23:32,839 INFO L225 Difference]: With dead ends: 1764 [2020-10-28 15:23:32,839 INFO L226 Difference]: Without dead ends: 1741 [2020-10-28 15:23:32,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-28 15:23:32,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2020-10-28 15:23:33,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1650. [2020-10-28 15:23:33,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1650 states. [2020-10-28 15:23:33,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1650 states to 1650 states and 2663 transitions. [2020-10-28 15:23:33,017 INFO L78 Accepts]: Start accepts. Automaton has 1650 states and 2663 transitions. Word has length 43 [2020-10-28 15:23:33,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:23:33,018 INFO L481 AbstractCegarLoop]: Abstraction has 1650 states and 2663 transitions. [2020-10-28 15:23:33,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 15:23:33,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1650 states and 2663 transitions. [2020-10-28 15:23:33,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-28 15:23:33,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:23:33,019 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:23:33,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 15:23:33,020 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:23:33,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:23:33,020 INFO L82 PathProgramCache]: Analyzing trace with hash -37869421, now seen corresponding path program 1 times [2020-10-28 15:23:33,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:23:33,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387907202] [2020-10-28 15:23:33,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:23:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:33,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:33,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:33,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:35,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:35,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 15:23:35,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:23:35,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2334 [2020-10-28 15:23:35,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:35,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:35,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:35,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-28 15:23:35,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 15:23:35,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:35,534 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 15:23:35,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:23:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:35,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:35,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:35,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:35,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:35,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 15:23:35,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:35,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:35,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:35,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:35,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:35,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:35,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:23:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:35,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:35,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:35,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:35,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:35,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:23:35,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:35,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:35,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:35,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:35,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:35,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:35,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:23:35,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:35,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:35,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:35,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:35,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:35,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:23:35,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:35,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:35,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:35,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:35,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:35,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:35,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:23:35,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387907202] [2020-10-28 15:23:35,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:23:35,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 15:23:35,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828942276] [2020-10-28 15:23:35,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 15:23:35,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:23:35,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 15:23:35,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:23:35,650 INFO L87 Difference]: Start difference. First operand 1650 states and 2663 transitions. Second operand 6 states. [2020-10-28 15:23:37,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:23:37,211 INFO L93 Difference]: Finished difference Result 2326 states and 3901 transitions. [2020-10-28 15:23:37,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 15:23:37,217 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2020-10-28 15:23:37,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:23:37,225 INFO L225 Difference]: With dead ends: 2326 [2020-10-28 15:23:37,226 INFO L226 Difference]: Without dead ends: 897 [2020-10-28 15:23:37,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:23:37,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2020-10-28 15:23:37,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 896. [2020-10-28 15:23:37,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 896 states. [2020-10-28 15:23:37,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1381 transitions. [2020-10-28 15:23:37,339 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1381 transitions. Word has length 46 [2020-10-28 15:23:37,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:23:37,339 INFO L481 AbstractCegarLoop]: Abstraction has 896 states and 1381 transitions. [2020-10-28 15:23:37,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 15:23:37,340 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1381 transitions. [2020-10-28 15:23:37,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-28 15:23:37,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:23:37,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:23:37,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 15:23:37,341 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:23:37,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:23:37,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1490354147, now seen corresponding path program 1 times [2020-10-28 15:23:37,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:23:37,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520803123] [2020-10-28 15:23:37,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:23:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:37,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:37,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:37,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 15:23:37,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:37,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-28 15:23:37,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:37,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:37,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:23:37,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-28 15:23:37,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 15:23:37,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:37,668 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 15:23:37,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:23:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:37,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:37,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:37,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:37,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:37,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 15:23:37,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:37,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:37,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:37,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:37,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:37,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 15:23:37,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:23:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:37,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:37,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:37,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:37,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:37,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:23:37,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:37,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:37,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:37,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:37,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:37,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:23:37,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:23:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:37,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:37,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:37,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:37,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:37,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:23:37,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:37,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:37,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:37,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:37,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:37,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:23:37,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 15:23:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:37,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:37,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:37,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 15:23:37,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:37,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 15:23:37,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:37,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:37,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:23:37,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:37,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 15:23:37,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:37,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:23:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:37,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:37,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:37,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:23:37,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:37,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:23:37,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:37,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:37,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:37,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:37,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:37,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:37,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:23:37,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520803123] [2020-10-28 15:23:37,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:23:37,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 15:23:37,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199636853] [2020-10-28 15:23:37,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 15:23:37,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:23:37,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 15:23:37,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-28 15:23:37,929 INFO L87 Difference]: Start difference. First operand 896 states and 1381 transitions. Second operand 10 states. [2020-10-28 15:23:39,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:23:39,109 INFO L93 Difference]: Finished difference Result 929 states and 1421 transitions. [2020-10-28 15:23:39,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 15:23:39,110 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 47 [2020-10-28 15:23:39,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:23:39,117 INFO L225 Difference]: With dead ends: 929 [2020-10-28 15:23:39,117 INFO L226 Difference]: Without dead ends: 908 [2020-10-28 15:23:39,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-28 15:23:39,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2020-10-28 15:23:39,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 894. [2020-10-28 15:23:39,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-10-28 15:23:39,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1377 transitions. [2020-10-28 15:23:39,213 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1377 transitions. Word has length 47 [2020-10-28 15:23:39,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:23:39,213 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1377 transitions. [2020-10-28 15:23:39,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 15:23:39,213 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1377 transitions. [2020-10-28 15:23:39,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-28 15:23:39,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:23:39,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:23:39,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 15:23:39,217 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:23:39,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:23:39,217 INFO L82 PathProgramCache]: Analyzing trace with hash -598412305, now seen corresponding path program 1 times [2020-10-28 15:23:39,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:23:39,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066488601] [2020-10-28 15:23:39,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:23:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:39,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:39,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:39,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 15:23:39,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:39,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-28 15:23:39,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:39,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:39,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:23:39,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-28 15:23:39,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 15:23:39,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:39,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:23:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:39,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:39,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:39,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:39,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:39,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:23:39,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:39,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:39,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:39,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:23:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:39,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:39,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:39,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:39,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:39,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:23:39,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:39,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:39,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:39,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:39,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:23:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:39,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:39,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:39,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:39,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:39,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:23:39,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:39,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:39,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:39,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:39,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:39,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:39,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 15:23:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:39,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:39,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:39,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 15:23:39,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:39,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 15:23:39,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:39,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:39,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:23:39,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:39,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 15:23:39,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:39,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:23:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:39,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:39,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:39,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:23:39,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:39,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:23:39,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:39,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:39,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:39,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:39,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:23:39,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:39,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:23:39,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066488601] [2020-10-28 15:23:39,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:23:39,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 15:23:39,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613456729] [2020-10-28 15:23:39,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 15:23:39,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:23:39,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 15:23:39,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-28 15:23:39,809 INFO L87 Difference]: Start difference. First operand 894 states and 1377 transitions. Second operand 11 states. [2020-10-28 15:23:41,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:23:41,825 INFO L93 Difference]: Finished difference Result 930 states and 1421 transitions. [2020-10-28 15:23:41,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 15:23:41,825 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 47 [2020-10-28 15:23:41,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:23:41,833 INFO L225 Difference]: With dead ends: 930 [2020-10-28 15:23:41,833 INFO L226 Difference]: Without dead ends: 908 [2020-10-28 15:23:41,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-10-28 15:23:41,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2020-10-28 15:23:41,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 894. [2020-10-28 15:23:41,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-10-28 15:23:41,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1376 transitions. [2020-10-28 15:23:41,934 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1376 transitions. Word has length 47 [2020-10-28 15:23:41,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:23:41,935 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1376 transitions. [2020-10-28 15:23:41,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 15:23:41,935 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1376 transitions. [2020-10-28 15:23:41,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-28 15:23:41,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:23:41,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:23:41,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 15:23:41,937 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:23:41,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:23:41,937 INFO L82 PathProgramCache]: Analyzing trace with hash 708121219, now seen corresponding path program 1 times [2020-10-28 15:23:41,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:23:41,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700886667] [2020-10-28 15:23:41,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:23:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:41,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:42,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:42,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:42,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:43,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:43,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 15:23:43,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 15:23:43,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1987 [2020-10-28 15:23:43,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:43,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:43,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:43,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-28 15:23:43,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 15:23:43,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:44,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:23:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:44,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:44,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:44,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:44,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:44,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:23:44,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:44,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:44,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:44,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:44,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:44,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:44,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:23:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:44,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:44,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:44,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:44,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:44,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:23:44,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:44,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:44,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:44,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:44,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:44,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:44,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:23:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:44,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:44,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:44,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:44,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:44,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:23:44,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:44,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:44,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:44,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:44,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:44,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:44,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 15:23:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:44,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:44,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:44,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 15:23:44,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:44,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:23:44,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:44,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:44,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:44,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 15:23:44,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 15:23:44,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:44,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:23:44,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700886667] [2020-10-28 15:23:44,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:23:44,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 15:23:44,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502177726] [2020-10-28 15:23:44,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 15:23:44,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:23:44,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 15:23:44,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:23:44,217 INFO L87 Difference]: Start difference. First operand 894 states and 1376 transitions. Second operand 8 states. [2020-10-28 15:23:44,351 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 15:23:46,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:23:46,078 INFO L93 Difference]: Finished difference Result 975 states and 1455 transitions. [2020-10-28 15:23:46,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 15:23:46,079 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2020-10-28 15:23:46,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:23:46,085 INFO L225 Difference]: With dead ends: 975 [2020-10-28 15:23:46,085 INFO L226 Difference]: Without dead ends: 632 [2020-10-28 15:23:46,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-10-28 15:23:46,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2020-10-28 15:23:46,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 608. [2020-10-28 15:23:46,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-10-28 15:23:46,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 848 transitions. [2020-10-28 15:23:46,182 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 848 transitions. Word has length 50 [2020-10-28 15:23:46,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:23:46,183 INFO L481 AbstractCegarLoop]: Abstraction has 608 states and 848 transitions. [2020-10-28 15:23:46,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 15:23:46,183 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 848 transitions. [2020-10-28 15:23:46,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-28 15:23:46,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:23:46,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:23:46,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 15:23:46,186 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:23:46,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:23:46,186 INFO L82 PathProgramCache]: Analyzing trace with hash -397748892, now seen corresponding path program 1 times [2020-10-28 15:23:46,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:23:46,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433961237] [2020-10-28 15:23:46,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:23:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:46,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:46,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:46,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:46,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-28 15:23:46,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:23:46,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 536 [2020-10-28 15:23:46,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:46,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:46,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:23:46,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 15:23:46,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-28 15:23:46,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:46,938 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 15:23:46,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:23:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:46,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:46,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:46,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:46,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:46,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 15:23:46,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:46,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:46,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:46,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:46,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:46,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:47,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:23:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:47,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:47,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:47,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:47,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:47,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:23:47,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:47,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:47,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:23:47,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:47,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:23:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:47,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:47,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:47,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:47,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:47,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:23:47,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:47,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:47,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:47,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:47,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:23:47,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:47,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 15:23:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:47,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:47,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:47,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 15:23:47,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:47,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 15:23:47,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:47,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:47,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:23:47,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:47,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 15:23:47,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:47,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 15:23:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:47,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:47,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:47,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 15:23:47,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:47,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 15:23:47,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:47,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:47,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:47,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:47,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 15:23:47,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:47,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:23:47,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433961237] [2020-10-28 15:23:47,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:23:47,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 15:23:47,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581030233] [2020-10-28 15:23:47,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 15:23:47,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:23:47,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 15:23:47,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-28 15:23:47,220 INFO L87 Difference]: Start difference. First operand 608 states and 848 transitions. Second operand 11 states. [2020-10-28 15:23:48,381 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2020-10-28 15:23:50,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:23:50,197 INFO L93 Difference]: Finished difference Result 647 states and 899 transitions. [2020-10-28 15:23:50,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 15:23:50,198 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 48 [2020-10-28 15:23:50,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:23:50,202 INFO L225 Difference]: With dead ends: 647 [2020-10-28 15:23:50,203 INFO L226 Difference]: Without dead ends: 640 [2020-10-28 15:23:50,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2020-10-28 15:23:50,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2020-10-28 15:23:50,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 608. [2020-10-28 15:23:50,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-10-28 15:23:50,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 847 transitions. [2020-10-28 15:23:50,289 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 847 transitions. Word has length 48 [2020-10-28 15:23:50,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:23:50,291 INFO L481 AbstractCegarLoop]: Abstraction has 608 states and 847 transitions. [2020-10-28 15:23:50,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 15:23:50,292 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 847 transitions. [2020-10-28 15:23:50,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-28 15:23:50,294 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:23:50,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:23:50,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 15:23:50,295 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:23:50,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:23:50,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1496141835, now seen corresponding path program 1 times [2020-10-28 15:23:50,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:23:50,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50038855] [2020-10-28 15:23:50,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:23:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:50,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:50,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:50,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-28 15:23:50,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:50,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-10-28 15:23:50,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:50,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:50,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 15:23:50,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 15:23:50,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 15:23:50,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:50,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:23:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:50,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:50,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:50,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:50,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:50,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:23:50,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:50,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:50,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:50,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:50,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:50,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:50,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:23:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:50,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:50,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:50,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:50,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:50,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:23:50,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:50,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:50,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:50,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:50,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:23:50,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:23:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:50,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:50,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:50,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:50,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:50,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:23:50,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:50,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:50,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:50,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:50,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:50,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:50,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 15:23:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:50,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:50,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:50,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 15:23:50,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:50,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 15:23:50,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:50,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:50,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 15:23:50,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:50,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 15:23:50,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:51,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 15:23:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:51,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:51,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:51,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 15:23:51,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:51,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 15:23:51,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:51,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:51,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:23:51,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:51,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 15:23:51,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:51,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:23:51,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50038855] [2020-10-28 15:23:51,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:23:51,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 15:23:51,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179464540] [2020-10-28 15:23:51,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 15:23:51,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:23:51,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 15:23:51,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-28 15:23:51,055 INFO L87 Difference]: Start difference. First operand 608 states and 847 transitions. Second operand 13 states. [2020-10-28 15:23:52,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:23:52,684 INFO L93 Difference]: Finished difference Result 625 states and 865 transitions. [2020-10-28 15:23:52,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 15:23:52,685 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 49 [2020-10-28 15:23:52,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:23:52,689 INFO L225 Difference]: With dead ends: 625 [2020-10-28 15:23:52,689 INFO L226 Difference]: Without dead ends: 605 [2020-10-28 15:23:52,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-28 15:23:52,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2020-10-28 15:23:52,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 603. [2020-10-28 15:23:52,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-10-28 15:23:52,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 840 transitions. [2020-10-28 15:23:52,781 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 840 transitions. Word has length 49 [2020-10-28 15:23:52,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:23:52,785 INFO L481 AbstractCegarLoop]: Abstraction has 603 states and 840 transitions. [2020-10-28 15:23:52,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 15:23:52,785 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 840 transitions. [2020-10-28 15:23:52,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-28 15:23:52,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:23:52,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:23:52,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 15:23:52,787 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:23:52,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:23:52,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1607740576, now seen corresponding path program 1 times [2020-10-28 15:23:52,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:23:52,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664256497] [2020-10-28 15:23:52,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:23:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:52,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:52,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:52,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-28 15:23:52,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:52,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-28 15:23:52,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:52,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:52,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:23:52,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-28 15:23:52,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 15:23:52,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:53,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:23:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:53,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:53,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:53,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:53,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:53,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:23:53,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:53,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:53,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:53,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:53,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:53,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:53,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:23:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:53,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:53,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:53,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:53,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:53,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:23:53,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:53,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:53,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:53,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:53,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:53,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:53,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:23:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:53,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:53,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:53,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:53,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:53,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:23:53,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:53,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:53,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:53,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:53,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:53,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:53,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 15:23:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:53,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:53,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:53,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 15:23:53,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:53,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 15:23:53,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:53,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:53,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:23:53,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:53,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 15:23:53,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:53,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 15:23:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:53,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:53,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:53,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:23:53,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:53,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:23:53,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:53,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:53,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:53,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:53,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:23:53,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:53,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:23:53,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664256497] [2020-10-28 15:23:53,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:23:53,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 15:23:53,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813437630] [2020-10-28 15:23:53,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 15:23:53,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:23:53,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 15:23:53,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-28 15:23:53,335 INFO L87 Difference]: Start difference. First operand 603 states and 840 transitions. Second operand 11 states. [2020-10-28 15:23:54,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:23:54,493 INFO L93 Difference]: Finished difference Result 632 states and 876 transitions. [2020-10-28 15:23:54,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 15:23:54,494 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 51 [2020-10-28 15:23:54,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:23:54,498 INFO L225 Difference]: With dead ends: 632 [2020-10-28 15:23:54,498 INFO L226 Difference]: Without dead ends: 598 [2020-10-28 15:23:54,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-10-28 15:23:54,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-10-28 15:23:54,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 585. [2020-10-28 15:23:54,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-28 15:23:54,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 820 transitions. [2020-10-28 15:23:54,569 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 820 transitions. Word has length 51 [2020-10-28 15:23:54,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:23:54,569 INFO L481 AbstractCegarLoop]: Abstraction has 585 states and 820 transitions. [2020-10-28 15:23:54,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 15:23:54,569 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 820 transitions. [2020-10-28 15:23:54,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-28 15:23:54,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:23:54,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:23:54,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 15:23:54,571 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:23:54,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:23:54,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1071301988, now seen corresponding path program 1 times [2020-10-28 15:23:54,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:23:54,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1306367245] [2020-10-28 15:23:54,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:23:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:54,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:54,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:54,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-28 15:23:54,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:54,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-28 15:23:54,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:54,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:54,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 15:23:54,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-28 15:23:54,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 15:23:54,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:54,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:23:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:54,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:54,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:54,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:54,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:54,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:23:54,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:54,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:54,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:54,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:54,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:54,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:54,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:23:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:54,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:55,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:55,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:55,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:55,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:23:55,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:55,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:55,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:55,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:55,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:55,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:55,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:23:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:55,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:55,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:55,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:55,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:55,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:23:55,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:55,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:55,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:55,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:55,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:55,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 15:23:55,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 15:23:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:55,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:55,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:55,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 15:23:55,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:55,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 15:23:55,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:55,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:55,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 15:23:55,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:55,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 15:23:55,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:55,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:23:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:55,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:55,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:55,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 15:23:55,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:55,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 15:23:55,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:55,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:55,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:23:55,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:55,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 15:23:55,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:55,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:23:55,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1306367245] [2020-10-28 15:23:55,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:23:55,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 15:23:55,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589556871] [2020-10-28 15:23:55,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 15:23:55,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:23:55,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 15:23:55,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-28 15:23:55,171 INFO L87 Difference]: Start difference. First operand 585 states and 820 transitions. Second operand 12 states. [2020-10-28 15:23:57,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:23:57,046 INFO L93 Difference]: Finished difference Result 602 states and 838 transitions. [2020-10-28 15:23:57,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 15:23:57,047 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2020-10-28 15:23:57,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:23:57,052 INFO L225 Difference]: With dead ends: 602 [2020-10-28 15:23:57,052 INFO L226 Difference]: Without dead ends: 570 [2020-10-28 15:23:57,054 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-28 15:23:57,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-10-28 15:23:57,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 568. [2020-10-28 15:23:57,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2020-10-28 15:23:57,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 799 transitions. [2020-10-28 15:23:57,119 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 799 transitions. Word has length 51 [2020-10-28 15:23:57,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:23:57,120 INFO L481 AbstractCegarLoop]: Abstraction has 568 states and 799 transitions. [2020-10-28 15:23:57,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 15:23:57,120 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 799 transitions. [2020-10-28 15:23:57,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-28 15:23:57,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:23:57,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:23:57,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 15:23:57,123 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:23:57,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:23:57,124 INFO L82 PathProgramCache]: Analyzing trace with hash 611297726, now seen corresponding path program 1 times [2020-10-28 15:23:57,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:23:57,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720149909] [2020-10-28 15:23:57,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:23:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:57,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:57,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:58,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:58,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 15:23:58,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:23:58,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-10-28 15:23:58,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:58,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:58,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:23:58,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 15:23:58,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-28 15:23:58,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:58,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:23:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:58,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:58,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:58,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:58,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:58,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:23:58,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:58,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:58,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:23:58,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:58,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:23:58,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:58,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:23:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:58,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:58,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:58,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:58,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:58,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:23:58,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:58,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:58,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:58,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:58,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:23:58,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:58,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:23:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:58,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:58,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:58,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:23:58,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:58,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:23:58,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:58,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:58,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:23:58,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:23:58,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:23:58,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:23:58,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 15:23:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:58,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:58,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:58,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 15:23:58,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:58,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 15:23:58,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:58,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:58,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:23:58,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 15:23:58,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 15:23:58,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:23:58,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:23:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:23:58,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:23:58,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:23:58,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 15:23:58,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:23:58,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 15:23:58,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:23:58,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:23:58,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:23:58,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 15:23:58,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 15:23:58,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:23:58,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:23:58,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720149909] [2020-10-28 15:23:58,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:23:58,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 15:23:58,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861711464] [2020-10-28 15:23:58,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 15:23:58,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:23:58,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 15:23:58,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-28 15:23:58,630 INFO L87 Difference]: Start difference. First operand 568 states and 799 transitions. Second operand 12 states. [2020-10-28 15:23:58,978 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-28 15:23:59,164 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 15:23:59,412 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 15:23:59,552 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-28 15:24:02,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:24:02,495 INFO L93 Difference]: Finished difference Result 817 states and 1239 transitions. [2020-10-28 15:24:02,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 15:24:02,496 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 52 [2020-10-28 15:24:02,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:24:02,502 INFO L225 Difference]: With dead ends: 817 [2020-10-28 15:24:02,502 INFO L226 Difference]: Without dead ends: 782 [2020-10-28 15:24:02,502 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2020-10-28 15:24:02,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2020-10-28 15:24:02,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 715. [2020-10-28 15:24:02,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 715 states. [2020-10-28 15:24:02,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 1098 transitions. [2020-10-28 15:24:02,584 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 1098 transitions. Word has length 52 [2020-10-28 15:24:02,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:24:02,585 INFO L481 AbstractCegarLoop]: Abstraction has 715 states and 1098 transitions. [2020-10-28 15:24:02,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 15:24:02,585 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 1098 transitions. [2020-10-28 15:24:02,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-28 15:24:02,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:24:02,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:24:02,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 15:24:02,586 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:24:02,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:24:02,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1061036883, now seen corresponding path program 1 times [2020-10-28 15:24:02,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:24:02,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047078894] [2020-10-28 15:24:02,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:24:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:02,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:02,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:02,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 15:24:02,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:02,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-28 15:24:02,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:02,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:02,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:02,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-28 15:24:02,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 15:24:02,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:02,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:24:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:02,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:02,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:02,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:02,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:02,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:24:02,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:02,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:02,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:02,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:02,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:02,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:02,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:24:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:02,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:02,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:02,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:02,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:02,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:24:02,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:02,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:02,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:02,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:02,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:02,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:02,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:24:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:02,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:02,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:02,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:02,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:02,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:24:02,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:02,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:02,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:02,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:02,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:02,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:02,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 15:24:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:02,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:02,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:02,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 15:24:02,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:02,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 15:24:02,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:02,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:02,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:02,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 15:24:02,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:02,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:02,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:02,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:02,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 15:24:02,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:02,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:24:02,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:02,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:02,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:02,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:02,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 15:24:02,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:24:02,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:24:02,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047078894] [2020-10-28 15:24:02,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:24:02,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 15:24:02,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057157127] [2020-10-28 15:24:02,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 15:24:02,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:24:02,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 15:24:02,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-28 15:24:02,947 INFO L87 Difference]: Start difference. First operand 715 states and 1098 transitions. Second operand 7 states. [2020-10-28 15:24:05,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:24:05,496 INFO L93 Difference]: Finished difference Result 900 states and 1459 transitions. [2020-10-28 15:24:05,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 15:24:05,497 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-10-28 15:24:05,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:24:05,504 INFO L225 Difference]: With dead ends: 900 [2020-10-28 15:24:05,504 INFO L226 Difference]: Without dead ends: 890 [2020-10-28 15:24:05,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-28 15:24:05,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2020-10-28 15:24:05,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 713. [2020-10-28 15:24:05,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2020-10-28 15:24:05,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1094 transitions. [2020-10-28 15:24:05,595 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1094 transitions. Word has length 52 [2020-10-28 15:24:05,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:24:05,595 INFO L481 AbstractCegarLoop]: Abstraction has 713 states and 1094 transitions. [2020-10-28 15:24:05,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 15:24:05,595 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1094 transitions. [2020-10-28 15:24:05,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-28 15:24:05,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:24:05,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:24:05,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 15:24:05,597 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:24:05,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:24:05,597 INFO L82 PathProgramCache]: Analyzing trace with hash 375397293, now seen corresponding path program 1 times [2020-10-28 15:24:05,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:24:05,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2084127367] [2020-10-28 15:24:05,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:24:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:05,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:05,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:06,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:06,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 15:24:06,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:24:06,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-10-28 15:24:06,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:06,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:06,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:24:06,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-28 15:24:06,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 15:24:06,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:06,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:24:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:06,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:06,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:06,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:06,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:06,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:24:06,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:06,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:06,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:06,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:06,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:06,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:06,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:24:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:06,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:06,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:06,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:06,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:06,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:24:06,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:06,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:06,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:06,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:06,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:06,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:06,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:24:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:06,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:06,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:06,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:06,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:06,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:24:06,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:06,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:06,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:06,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:06,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:06,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:24:06,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 15:24:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:06,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:06,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:06,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 15:24:06,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:06,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 15:24:06,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:06,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:06,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:24:06,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 15:24:06,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 15:24:06,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:06,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:06,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:06,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:06,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 15:24:06,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:06,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 15:24:06,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:06,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:06,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:24:06,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 15:24:06,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 15:24:06,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:24:06,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:24:06,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2084127367] [2020-10-28 15:24:06,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:24:06,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 15:24:06,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533930094] [2020-10-28 15:24:06,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 15:24:06,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:24:06,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 15:24:06,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:24:06,394 INFO L87 Difference]: Start difference. First operand 713 states and 1094 transitions. Second operand 8 states. [2020-10-28 15:24:07,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:24:07,940 INFO L93 Difference]: Finished difference Result 762 states and 1153 transitions. [2020-10-28 15:24:07,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 15:24:07,940 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-10-28 15:24:07,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:24:07,945 INFO L225 Difference]: With dead ends: 762 [2020-10-28 15:24:07,946 INFO L226 Difference]: Without dead ends: 731 [2020-10-28 15:24:07,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-28 15:24:07,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2020-10-28 15:24:08,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 716. [2020-10-28 15:24:08,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-10-28 15:24:08,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1098 transitions. [2020-10-28 15:24:08,039 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1098 transitions. Word has length 52 [2020-10-28 15:24:08,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:24:08,039 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 1098 transitions. [2020-10-28 15:24:08,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 15:24:08,040 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1098 transitions. [2020-10-28 15:24:08,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-28 15:24:08,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:24:08,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:24:08,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 15:24:08,042 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:24:08,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:24:08,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1313546449, now seen corresponding path program 1 times [2020-10-28 15:24:08,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:24:08,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63077063] [2020-10-28 15:24:08,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:24:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:08,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:08,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:08,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 15:24:08,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:08,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-28 15:24:08,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:08,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:08,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:24:08,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 15:24:08,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-28 15:24:08,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:08,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:24:08,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:08,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:08,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:08,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:08,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:08,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:24:08,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:08,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:08,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:08,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:08,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:08,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:08,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:24:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:08,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:08,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:08,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:08,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:08,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 15:24:08,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:08,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:08,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:08,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:08,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:24:08,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:08,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:24:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:08,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:08,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:08,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:08,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:08,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:24:08,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:08,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:08,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:08,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:08,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:24:08,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:08,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 15:24:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:08,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:08,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:08,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 15:24:08,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:08,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 15:24:08,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:08,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:08,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:24:08,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 15:24:08,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 15:24:08,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:08,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:08,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:08,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:08,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 15:24:08,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:08,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 15:24:08,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:08,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:24:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 15:24:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 15:24:08,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:08,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:24:08,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [63077063] [2020-10-28 15:24:08,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:24:08,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 15:24:08,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143388664] [2020-10-28 15:24:08,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 15:24:08,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:24:08,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 15:24:08,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-28 15:24:08,637 INFO L87 Difference]: Start difference. First operand 716 states and 1098 transitions. Second operand 12 states. [2020-10-28 15:24:08,868 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-10-28 15:24:09,217 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 15:24:10,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:24:10,813 INFO L93 Difference]: Finished difference Result 841 states and 1352 transitions. [2020-10-28 15:24:10,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 15:24:10,814 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 52 [2020-10-28 15:24:10,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:24:10,821 INFO L225 Difference]: With dead ends: 841 [2020-10-28 15:24:10,822 INFO L226 Difference]: Without dead ends: 797 [2020-10-28 15:24:10,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2020-10-28 15:24:10,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-10-28 15:24:10,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 681. [2020-10-28 15:24:10,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 681 states. [2020-10-28 15:24:10,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 1054 transitions. [2020-10-28 15:24:10,910 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 1054 transitions. Word has length 52 [2020-10-28 15:24:10,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:24:10,910 INFO L481 AbstractCegarLoop]: Abstraction has 681 states and 1054 transitions. [2020-10-28 15:24:10,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 15:24:10,910 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 1054 transitions. [2020-10-28 15:24:10,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-28 15:24:10,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:24:10,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:24:10,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-28 15:24:10,912 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:24:10,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:24:10,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1669411178, now seen corresponding path program 1 times [2020-10-28 15:24:10,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:24:10,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57469466] [2020-10-28 15:24:10,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:24:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:10,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:11,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:11,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 15:24:11,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:11,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-28 15:24:11,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:11,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:11,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 15:24:11,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-28 15:24:11,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 15:24:11,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:11,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:24:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:11,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:11,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:11,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:11,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:11,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:24:11,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:11,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:11,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:11,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:11,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:11,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:11,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:24:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:11,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:11,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:11,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:11,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:11,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:24:11,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:11,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:11,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:11,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:11,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:11,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:11,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:24:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:11,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:11,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:11,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:11,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:11,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:11,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:11,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:11,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:11,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:11,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:11,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:11,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 15:24:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:11,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:11,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:11,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 15:24:11,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:11,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 15:24:11,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:11,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:11,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 15:24:11,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:11,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 15:24:11,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:11,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:11,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:11,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:11,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 15:24:11,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:11,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 15:24:11,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:11,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:24:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 15:24:11,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:11,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:24:11,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57469466] [2020-10-28 15:24:11,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:24:11,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 15:24:11,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361958443] [2020-10-28 15:24:11,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 15:24:11,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:24:11,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 15:24:11,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-28 15:24:11,549 INFO L87 Difference]: Start difference. First operand 681 states and 1054 transitions. Second operand 12 states. [2020-10-28 15:24:13,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:24:13,347 INFO L93 Difference]: Finished difference Result 703 states and 1082 transitions. [2020-10-28 15:24:13,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 15:24:13,349 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2020-10-28 15:24:13,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:24:13,355 INFO L225 Difference]: With dead ends: 703 [2020-10-28 15:24:13,355 INFO L226 Difference]: Without dead ends: 665 [2020-10-28 15:24:13,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-28 15:24:13,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-10-28 15:24:13,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 657. [2020-10-28 15:24:13,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-10-28 15:24:13,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 1027 transitions. [2020-10-28 15:24:13,441 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 1027 transitions. Word has length 53 [2020-10-28 15:24:13,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:24:13,441 INFO L481 AbstractCegarLoop]: Abstraction has 657 states and 1027 transitions. [2020-10-28 15:24:13,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 15:24:13,442 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 1027 transitions. [2020-10-28 15:24:13,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-28 15:24:13,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:24:13,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:24:13,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-28 15:24:13,443 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:24:13,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:24:13,443 INFO L82 PathProgramCache]: Analyzing trace with hash 699542865, now seen corresponding path program 1 times [2020-10-28 15:24:13,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:24:13,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [961645199] [2020-10-28 15:24:13,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:24:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:13,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:13,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:13,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 15:24:13,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:13,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-28 15:24:13,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:13,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:13,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:13,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 15:24:13,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 15:24:13,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:13,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:24:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:13,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:13,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:13,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:13,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:13,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:24:13,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:13,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:13,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:13,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:13,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:13,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:13,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:24:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:13,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:13,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:13,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:13,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:13,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:24:13,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:13,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:13,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:13,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:13,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:13,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:13,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:24:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:13,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:13,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:13,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:13,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:13,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:24:13,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:13,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:13,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:13,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:13,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 15:24:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:13,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:13,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:13,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:24:13,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:13,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:24:13,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:13,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:13,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:13,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:13,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:13,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:13,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:24:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:13,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:13,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:13,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:13,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:13,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:13,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:13,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:13,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:13,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 15:24:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:13,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:13,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:13,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:13,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:13,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:13,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:13,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:13,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:13,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:13,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:24:13,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:13,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:24:13,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [961645199] [2020-10-28 15:24:13,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:24:13,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 15:24:13,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057157537] [2020-10-28 15:24:13,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 15:24:13,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:24:13,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 15:24:13,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:24:13,880 INFO L87 Difference]: Start difference. First operand 657 states and 1027 transitions. Second operand 8 states. [2020-10-28 15:24:14,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:24:14,721 INFO L93 Difference]: Finished difference Result 1180 states and 1916 transitions. [2020-10-28 15:24:14,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 15:24:14,722 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2020-10-28 15:24:14,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:24:14,728 INFO L225 Difference]: With dead ends: 1180 [2020-10-28 15:24:14,728 INFO L226 Difference]: Without dead ends: 676 [2020-10-28 15:24:14,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-28 15:24:14,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2020-10-28 15:24:14,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 656. [2020-10-28 15:24:14,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 656 states. [2020-10-28 15:24:14,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 1024 transitions. [2020-10-28 15:24:14,815 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 1024 transitions. Word has length 59 [2020-10-28 15:24:14,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:24:14,815 INFO L481 AbstractCegarLoop]: Abstraction has 656 states and 1024 transitions. [2020-10-28 15:24:14,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 15:24:14,816 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 1024 transitions. [2020-10-28 15:24:14,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-28 15:24:14,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:24:14,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:24:14,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-28 15:24:14,817 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:24:14,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:24:14,817 INFO L82 PathProgramCache]: Analyzing trace with hash 27870946, now seen corresponding path program 1 times [2020-10-28 15:24:14,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:24:14,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526070716] [2020-10-28 15:24:14,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:24:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:14,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:14,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:15,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:15,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:18,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:18,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-28 15:24:18,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 15:24:18,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3925 [2020-10-28 15:24:18,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:18,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:18,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:18,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-28 15:24:18,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 15:24:18,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:18,930 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 15:24:18,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:24:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:18,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:18,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:18,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:18,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:18,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:24:18,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:18,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:18,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:18,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:18,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:18,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:18,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:24:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:18,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:18,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:18,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:18,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:18,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:24:18,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:18,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:18,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:18,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:18,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:18,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:19,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:24:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:19,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:19,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:19,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:19,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:19,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:24:19,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:19,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:19,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:19,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:19,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:19,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 15:24:19,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 15:24:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:19,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:19,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:19,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:19,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 15:24:19,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:24:19,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-28 15:24:19,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:19,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:19,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:19,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:19,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:19,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:24:19,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:19,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:19,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:19,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:24:19,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:19,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:24:19,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:19,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:19,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:19,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:19,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:19,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:19,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:24:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:19,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:19,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:19,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:19,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:19,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:19,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:19,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:19,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:19,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:19,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:19,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:19,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:24:19,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526070716] [2020-10-28 15:24:19,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:24:19,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 15:24:19,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131839620] [2020-10-28 15:24:19,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 15:24:19,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:24:19,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 15:24:19,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:24:19,157 INFO L87 Difference]: Start difference. First operand 656 states and 1024 transitions. Second operand 8 states. [2020-10-28 15:24:21,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:24:21,225 INFO L93 Difference]: Finished difference Result 1023 states and 1704 transitions. [2020-10-28 15:24:21,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 15:24:21,226 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-10-28 15:24:21,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:24:21,235 INFO L225 Difference]: With dead ends: 1023 [2020-10-28 15:24:21,235 INFO L226 Difference]: Without dead ends: 1019 [2020-10-28 15:24:21,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2020-10-28 15:24:21,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2020-10-28 15:24:21,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 690. [2020-10-28 15:24:21,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2020-10-28 15:24:21,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1075 transitions. [2020-10-28 15:24:21,343 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1075 transitions. Word has length 64 [2020-10-28 15:24:21,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:24:21,343 INFO L481 AbstractCegarLoop]: Abstraction has 690 states and 1075 transitions. [2020-10-28 15:24:21,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 15:24:21,344 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1075 transitions. [2020-10-28 15:24:21,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-28 15:24:21,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:24:21,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:24:21,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-28 15:24:21,345 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:24:21,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:24:21,345 INFO L82 PathProgramCache]: Analyzing trace with hash 337975016, now seen corresponding path program 1 times [2020-10-28 15:24:21,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:24:21,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702215471] [2020-10-28 15:24:21,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:24:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:21,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:21,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:21,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-28 15:24:21,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:21,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-10-28 15:24:21,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:21,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:21,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 15:24:21,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-28 15:24:21,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 15:24:21,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:21,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:24:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:21,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:21,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:21,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:21,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:21,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 15:24:21,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:21,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:21,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:21,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:21,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:21,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:21,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:24:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:21,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:21,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:21,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:21,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:21,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:24:21,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:21,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:21,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:21,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:21,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:21,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:21,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:24:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:21,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:21,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:21,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:21,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:21,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:21,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:21,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:21,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:21,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:21,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:21,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:21,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 15:24:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:21,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:22,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:22,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-28 15:24:22,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:22,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-28 15:24:22,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:22,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:22,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 15:24:22,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:22,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-28 15:24:22,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:22,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:22,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:22,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:22,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 15:24:22,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:22,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 15:24:22,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:22,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:22,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 15:24:22,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:22,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 15:24:22,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:22,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:22,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:22,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:22,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 15:24:22,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:22,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 15:24:22,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:22,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:22,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:24:22,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:22,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 15:24:22,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:22,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:24:22,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702215471] [2020-10-28 15:24:22,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:24:22,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-28 15:24:22,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489767967] [2020-10-28 15:24:22,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-28 15:24:22,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:24:22,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-28 15:24:22,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-28 15:24:22,283 INFO L87 Difference]: Start difference. First operand 690 states and 1075 transitions. Second operand 15 states. [2020-10-28 15:24:23,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:24:23,440 INFO L93 Difference]: Finished difference Result 701 states and 1090 transitions. [2020-10-28 15:24:23,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 15:24:23,440 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 59 [2020-10-28 15:24:23,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:24:23,445 INFO L225 Difference]: With dead ends: 701 [2020-10-28 15:24:23,446 INFO L226 Difference]: Without dead ends: 658 [2020-10-28 15:24:23,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-10-28 15:24:23,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-10-28 15:24:23,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 650. [2020-10-28 15:24:23,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-10-28 15:24:23,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 1031 transitions. [2020-10-28 15:24:23,554 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 1031 transitions. Word has length 59 [2020-10-28 15:24:23,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:24:23,554 INFO L481 AbstractCegarLoop]: Abstraction has 650 states and 1031 transitions. [2020-10-28 15:24:23,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-28 15:24:23,554 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 1031 transitions. [2020-10-28 15:24:23,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-28 15:24:23,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:24:23,556 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:24:23,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-28 15:24:23,556 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:24:23,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:24:23,557 INFO L82 PathProgramCache]: Analyzing trace with hash 2079913450, now seen corresponding path program 1 times [2020-10-28 15:24:23,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:24:23,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285202228] [2020-10-28 15:24:23,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:24:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:23,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:23,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:23,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:24,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:28,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:28,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-28 15:24:28,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 15:24:28,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 15:24:28,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:28,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:28,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:24:28,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 15:24:28,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 15:24:28,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:28,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:24:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:28,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:28,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:28,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:28,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:28,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:24:28,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:28,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:28,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:28,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:28,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:28,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:28,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:24:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:28,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:28,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:28,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:28,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:28,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:24:28,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:28,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:28,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:28,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:28,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:24:28,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:28,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:24:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:28,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:28,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:28,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:28,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:28,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:24:28,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:28,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:28,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:28,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:28,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:24:28,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:28,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 15:24:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:28,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:28,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:28,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:28,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 15:24:28,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:24:28,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-28 15:24:28,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:28,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:28,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:24:28,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:28,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-28 15:24:28,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:29,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:29,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:29,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:29,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:24:29,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:29,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:24:29,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:29,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:29,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:29,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:29,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:29,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:29,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:24:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:29,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:29,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:29,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:29,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:29,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:29,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:29,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:29,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:29,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:29,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:29,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:24:29,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285202228] [2020-10-28 15:24:29,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:24:29,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 15:24:29,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171571726] [2020-10-28 15:24:29,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 15:24:29,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:24:29,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 15:24:29,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-28 15:24:29,046 INFO L87 Difference]: Start difference. First operand 650 states and 1031 transitions. Second operand 10 states. [2020-10-28 15:24:29,743 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-28 15:24:31,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:24:31,113 INFO L93 Difference]: Finished difference Result 1483 states and 2454 transitions. [2020-10-28 15:24:31,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 15:24:31,113 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 65 [2020-10-28 15:24:31,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:24:31,123 INFO L225 Difference]: With dead ends: 1483 [2020-10-28 15:24:31,123 INFO L226 Difference]: Without dead ends: 910 [2020-10-28 15:24:31,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2020-10-28 15:24:31,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2020-10-28 15:24:31,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 653. [2020-10-28 15:24:31,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2020-10-28 15:24:31,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 1046 transitions. [2020-10-28 15:24:31,243 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 1046 transitions. Word has length 65 [2020-10-28 15:24:31,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:24:31,243 INFO L481 AbstractCegarLoop]: Abstraction has 653 states and 1046 transitions. [2020-10-28 15:24:31,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 15:24:31,244 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 1046 transitions. [2020-10-28 15:24:31,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-28 15:24:31,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:24:31,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:24:31,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-28 15:24:31,245 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:24:31,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:24:31,245 INFO L82 PathProgramCache]: Analyzing trace with hash 946341389, now seen corresponding path program 1 times [2020-10-28 15:24:31,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:24:31,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724027291] [2020-10-28 15:24:31,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:24:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:31,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:31,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:31,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-28 15:24:31,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:31,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-28 15:24:31,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:31,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:31,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:24:31,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-10-28 15:24:31,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:24:31,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:31,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:24:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:31,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:31,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:31,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:31,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:31,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:24:31,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:31,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:31,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:31,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:31,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:31,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:31,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:24:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:31,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:31,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:31,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:31,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:31,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:24:31,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:31,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:31,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:31,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:31,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:31,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:31,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:24:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:31,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:31,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:31,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:31,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:31,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:24:31,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:31,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:31,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:31,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:31,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:31,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:31,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-28 15:24:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:31,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:31,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:31,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-28 15:24:31,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:31,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-28 15:24:31,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:31,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:31,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:24:31,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-28 15:24:31,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:24:31,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:31,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:24:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:31,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:31,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:31,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 15:24:31,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:31,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 15:24:31,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:31,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:31,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:24:31,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 15:24:31,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:24:31,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:32,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:32,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:32,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:32,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:24:32,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:32,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 15:24:32,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:32,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:32,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:24:32,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:32,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 15:24:32,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:32,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:24:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:32,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:32,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:32,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:32,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:32,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:32,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:32,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:32,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:32,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:32,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:32,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:32,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:24:32,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724027291] [2020-10-28 15:24:32,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:24:32,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 15:24:32,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092174998] [2020-10-28 15:24:32,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 15:24:32,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:24:32,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 15:24:32,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-28 15:24:32,110 INFO L87 Difference]: Start difference. First operand 653 states and 1046 transitions. Second operand 12 states. [2020-10-28 15:24:33,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:24:33,413 INFO L93 Difference]: Finished difference Result 1059 states and 1695 transitions. [2020-10-28 15:24:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 15:24:33,413 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 66 [2020-10-28 15:24:33,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:24:33,417 INFO L225 Difference]: With dead ends: 1059 [2020-10-28 15:24:33,417 INFO L226 Difference]: Without dead ends: 480 [2020-10-28 15:24:33,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-28 15:24:33,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-10-28 15:24:33,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 408. [2020-10-28 15:24:33,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2020-10-28 15:24:33,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 590 transitions. [2020-10-28 15:24:33,495 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 590 transitions. Word has length 66 [2020-10-28 15:24:33,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:24:33,495 INFO L481 AbstractCegarLoop]: Abstraction has 408 states and 590 transitions. [2020-10-28 15:24:33,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 15:24:33,496 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 590 transitions. [2020-10-28 15:24:33,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-28 15:24:33,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:24:33,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:24:33,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-28 15:24:33,499 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:24:33,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:24:33,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1531688660, now seen corresponding path program 1 times [2020-10-28 15:24:33,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:24:33,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124405367] [2020-10-28 15:24:33,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:24:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:33,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:33,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:33,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-28 15:24:33,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:33,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-28 15:24:33,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:33,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:33,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:24:33,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 15:24:33,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 15:24:33,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:33,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:24:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:33,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:33,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:33,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:33,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:33,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:24:33,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:33,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:33,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:33,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:33,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:33,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:33,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:24:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:33,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:33,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:33,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:33,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:33,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:24:33,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:33,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:33,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:33,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:33,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:24:33,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:33,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:24:33,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:33,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:33,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:33,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:33,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:33,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:24:33,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:33,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:33,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:33,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:33,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:24:33,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:33,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-28 15:24:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:33,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:33,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:33,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 15:24:33,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:33,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 15:24:33,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:33,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:33,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:24:33,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-28 15:24:33,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 15:24:33,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:33,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:24:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:33,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:34,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:34,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 15:24:34,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:34,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 15:24:34,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:34,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:34,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:24:34,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:34,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-28 15:24:34,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:34,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:34,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:34,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:34,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:24:34,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:34,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:24:34,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:34,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:34,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:34,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:34,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:34,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:34,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:24:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:34,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:34,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:34,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:34,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:34,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:34,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:34,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:34,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:34,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:34,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:34,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:34,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:24:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:34,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:34,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:34,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:34,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:34,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:34,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:34,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:34,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:34,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:34,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:24:34,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:34,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:24:34,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2124405367] [2020-10-28 15:24:34,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:24:34,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 15:24:34,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772298265] [2020-10-28 15:24:34,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 15:24:34,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:24:34,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 15:24:34,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-28 15:24:34,102 INFO L87 Difference]: Start difference. First operand 408 states and 590 transitions. Second operand 12 states. [2020-10-28 15:24:34,247 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 15:24:35,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:24:35,385 INFO L93 Difference]: Finished difference Result 668 states and 960 transitions. [2020-10-28 15:24:35,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 15:24:35,386 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2020-10-28 15:24:35,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:24:35,389 INFO L225 Difference]: With dead ends: 668 [2020-10-28 15:24:35,390 INFO L226 Difference]: Without dead ends: 318 [2020-10-28 15:24:35,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2020-10-28 15:24:35,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-28 15:24:35,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 300. [2020-10-28 15:24:35,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-10-28 15:24:35,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 400 transitions. [2020-10-28 15:24:35,459 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 400 transitions. Word has length 70 [2020-10-28 15:24:35,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:24:35,459 INFO L481 AbstractCegarLoop]: Abstraction has 300 states and 400 transitions. [2020-10-28 15:24:35,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 15:24:35,459 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 400 transitions. [2020-10-28 15:24:35,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-28 15:24:35,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:24:35,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:24:35,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-28 15:24:35,463 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:24:35,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:24:35,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1777660616, now seen corresponding path program 1 times [2020-10-28 15:24:35,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:24:35,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [152590254] [2020-10-28 15:24:35,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:24:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:35,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:35,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:35,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:36,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:36,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 15:24:36,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:24:36,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 838 [2020-10-28 15:24:36,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:36,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:36,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:36,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-28 15:24:36,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 15:24:36,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:36,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:24:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:36,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:36,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:36,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:36,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:36,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:24:36,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:36,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:36,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:36,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:36,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:36,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:36,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:24:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:36,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:36,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:36,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:36,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:36,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:24:36,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:36,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:36,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:36,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:36,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:36,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:36,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:24:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:36,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:36,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:36,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:36,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:36,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:36,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:36,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:36,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:36,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:36,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:36,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:36,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 15:24:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:36,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:36,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:36,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 15:24:36,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:36,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 15:24:36,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:36,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:36,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:36,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-28 15:24:36,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 15:24:36,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:36,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:36,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:36,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:36,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:24:36,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:36,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:24:36,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:36,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:36,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:36,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:36,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:24:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:36,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:36,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:36,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:36,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:36,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:36,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:36,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:36,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:36,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:36,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:36,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:36,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:24:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:36,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:36,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:36,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:36,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:36,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:24:36,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:36,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:36,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:36,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:36,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:36,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:36,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:24:36,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [152590254] [2020-10-28 15:24:36,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:24:36,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 15:24:36,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986774204] [2020-10-28 15:24:36,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 15:24:36,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:24:36,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 15:24:36,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-28 15:24:36,691 INFO L87 Difference]: Start difference. First operand 300 states and 400 transitions. Second operand 9 states. [2020-10-28 15:24:37,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:24:37,608 INFO L93 Difference]: Finished difference Result 586 states and 817 transitions. [2020-10-28 15:24:37,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 15:24:37,609 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-28 15:24:37,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:24:37,612 INFO L225 Difference]: With dead ends: 586 [2020-10-28 15:24:37,612 INFO L226 Difference]: Without dead ends: 324 [2020-10-28 15:24:37,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-28 15:24:37,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-10-28 15:24:37,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 303. [2020-10-28 15:24:37,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-10-28 15:24:37,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 403 transitions. [2020-10-28 15:24:37,661 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 403 transitions. Word has length 71 [2020-10-28 15:24:37,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:24:37,661 INFO L481 AbstractCegarLoop]: Abstraction has 303 states and 403 transitions. [2020-10-28 15:24:37,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 15:24:37,662 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 403 transitions. [2020-10-28 15:24:37,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-28 15:24:37,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:24:37,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:24:37,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-28 15:24:37,663 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:24:37,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:24:37,663 INFO L82 PathProgramCache]: Analyzing trace with hash 497796938, now seen corresponding path program 1 times [2020-10-28 15:24:37,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:24:37,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355984334] [2020-10-28 15:24:37,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:24:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:37,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:37,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:37,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:38,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:38,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:39,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:39,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 15:24:39,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 15:24:39,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1578 [2020-10-28 15:24:39,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:39,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:39,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:24:39,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 15:24:39,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 15:24:39,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:39,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:24:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:39,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:39,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:39,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:39,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:39,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:24:39,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:39,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:39,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:39,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:39,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:39,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:39,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:24:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:39,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:39,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:39,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:39,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:39,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:24:39,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:39,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:39,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:39,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:39,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:24:39,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:39,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:24:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:39,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:39,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:39,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:39,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:39,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:24:39,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:39,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:39,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:39,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:39,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:24:39,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:39,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 15:24:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:39,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:39,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:39,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 15:24:39,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:39,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 15:24:39,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:39,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:39,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:24:39,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:39,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 15:24:39,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:39,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:39,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:39,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:39,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:24:39,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:39,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:24:39,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:39,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:39,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:39,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:39,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:39,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:39,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:24:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:39,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:39,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:39,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:39,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:39,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:39,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:39,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:39,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:39,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:39,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:39,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:24:39,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:24:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:39,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:39,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:39,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:39,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:39,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:39,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:39,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:39,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:39,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:39,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:39,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:24:39,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:24:39,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355984334] [2020-10-28 15:24:39,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:24:39,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 15:24:39,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477017318] [2020-10-28 15:24:39,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 15:24:39,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:24:39,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 15:24:39,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-28 15:24:39,683 INFO L87 Difference]: Start difference. First operand 303 states and 403 transitions. Second operand 11 states. [2020-10-28 15:24:39,854 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 15:24:40,138 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-10-28 15:24:40,676 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 15:24:42,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:24:42,535 INFO L93 Difference]: Finished difference Result 677 states and 951 transitions. [2020-10-28 15:24:42,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 15:24:42,536 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 71 [2020-10-28 15:24:42,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:24:42,540 INFO L225 Difference]: With dead ends: 677 [2020-10-28 15:24:42,540 INFO L226 Difference]: Without dead ends: 434 [2020-10-28 15:24:42,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=176, Invalid=424, Unknown=0, NotChecked=0, Total=600 [2020-10-28 15:24:42,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-10-28 15:24:42,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 339. [2020-10-28 15:24:42,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-10-28 15:24:42,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 464 transitions. [2020-10-28 15:24:42,597 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 464 transitions. Word has length 71 [2020-10-28 15:24:42,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:24:42,598 INFO L481 AbstractCegarLoop]: Abstraction has 339 states and 464 transitions. [2020-10-28 15:24:42,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 15:24:42,598 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 464 transitions. [2020-10-28 15:24:42,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-28 15:24:42,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:24:42,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:24:42,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-28 15:24:42,599 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:24:42,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:24:42,600 INFO L82 PathProgramCache]: Analyzing trace with hash 585551134, now seen corresponding path program 1 times [2020-10-28 15:24:42,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:24:42,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [138227653] [2020-10-28 15:24:42,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:24:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:42,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:42,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:42,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-28 15:24:42,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:42,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-28 15:24:42,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:42,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:42,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:24:42,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-28 15:24:42,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-28 15:24:42,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:42,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:24:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:42,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:42,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:42,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:42,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:42,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:24:42,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:42,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:42,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:42,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:42,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:42,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:42,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:24:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:42,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:42,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:42,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:42,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:42,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:24:42,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:42,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:42,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:42,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:42,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:42,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:43,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:24:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:43,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:43,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:43,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:43,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:43,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:43,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:43,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:43,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:43,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:43,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:43,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:43,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 15:24:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:43,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:43,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:43,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:24:43,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:43,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 15:24:43,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:43,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:43,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:43,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:43,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 15:24:43,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:24:43,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:43,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:43,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:43,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:24:43,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:43,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 15:24:43,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:43,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:43,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:43,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:43,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:24:43,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:24:43,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:24:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:43,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:43,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:43,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:43,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:43,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:24:43,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:43,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:43,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:43,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:43,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 15:24:43,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:24:43,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:24:43,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:43,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:43,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:43,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:43,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:43,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:43,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:43,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:43,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:43,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:43,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:24:43,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:43,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:24:43,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [138227653] [2020-10-28 15:24:43,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:24:43,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 15:24:43,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145163728] [2020-10-28 15:24:43,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 15:24:43,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:24:43,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 15:24:43,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-28 15:24:43,160 INFO L87 Difference]: Start difference. First operand 339 states and 464 transitions. Second operand 9 states. [2020-10-28 15:24:44,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:24:44,409 INFO L93 Difference]: Finished difference Result 893 states and 1305 transitions. [2020-10-28 15:24:44,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 15:24:44,410 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-28 15:24:44,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:24:44,421 INFO L225 Difference]: With dead ends: 893 [2020-10-28 15:24:44,422 INFO L226 Difference]: Without dead ends: 595 [2020-10-28 15:24:44,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-10-28 15:24:44,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2020-10-28 15:24:44,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 556. [2020-10-28 15:24:44,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-28 15:24:44,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 811 transitions. [2020-10-28 15:24:44,505 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 811 transitions. Word has length 71 [2020-10-28 15:24:44,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:24:44,505 INFO L481 AbstractCegarLoop]: Abstraction has 556 states and 811 transitions. [2020-10-28 15:24:44,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 15:24:44,505 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 811 transitions. [2020-10-28 15:24:44,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-28 15:24:44,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:24:44,507 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:24:44,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-28 15:24:44,507 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:24:44,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:24:44,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1588294581, now seen corresponding path program 1 times [2020-10-28 15:24:44,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:24:44,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33229606] [2020-10-28 15:24:44,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:24:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:44,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:44,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:44,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:44,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 15:24:44,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:24:44,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-28 15:24:44,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:44,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:24:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-28 15:24:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 15:24:44,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:44,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:24:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:44,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:44,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:44,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:44,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:44,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:24:44,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:44,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:44,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:44,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:44,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:44,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:45,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:24:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:45,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:45,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:45,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:45,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:45,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:24:45,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:45,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:45,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:45,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:45,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:45,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:45,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:24:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:45,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:45,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:45,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:45,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:45,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:45,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:45,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:45,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:45,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:45,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:45,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:45,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-28 15:24:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:45,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:45,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:45,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:45,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-28 15:24:45,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:24:45,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-28 15:24:45,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:45,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:45,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:24:45,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-28 15:24:45,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 15:24:45,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:45,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:24:45,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:45,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:45,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:45,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:45,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:24:45,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:24:45,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 15:24:45,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:45,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:45,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:24:45,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:45,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 15:24:45,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:45,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:45,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:45,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:45,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:24:45,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:45,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:24:45,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:45,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:45,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:45,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:45,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:45,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:24:45,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:24:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:45,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:45,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:45,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:45,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:45,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:45,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:45,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:45,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:45,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:45,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:45,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:45,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:24:45,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:45,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:45,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:45,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:45,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:45,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:24:45,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:45,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:45,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:45,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:45,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:45,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:45,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:24:45,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [33229606] [2020-10-28 15:24:45,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:24:45,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 15:24:45,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379449375] [2020-10-28 15:24:45,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 15:24:45,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:24:45,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 15:24:45,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-28 15:24:45,374 INFO L87 Difference]: Start difference. First operand 556 states and 811 transitions. Second operand 13 states. [2020-10-28 15:24:46,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:24:46,088 INFO L93 Difference]: Finished difference Result 1048 states and 1581 transitions. [2020-10-28 15:24:46,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 15:24:46,088 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 73 [2020-10-28 15:24:46,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:24:46,092 INFO L225 Difference]: With dead ends: 1048 [2020-10-28 15:24:46,092 INFO L226 Difference]: Without dead ends: 567 [2020-10-28 15:24:46,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-10-28 15:24:46,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2020-10-28 15:24:46,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 556. [2020-10-28 15:24:46,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-28 15:24:46,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 808 transitions. [2020-10-28 15:24:46,169 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 808 transitions. Word has length 73 [2020-10-28 15:24:46,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:24:46,170 INFO L481 AbstractCegarLoop]: Abstraction has 556 states and 808 transitions. [2020-10-28 15:24:46,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 15:24:46,170 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 808 transitions. [2020-10-28 15:24:46,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-28 15:24:46,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:24:46,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:24:46,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-28 15:24:46,171 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:24:46,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:24:46,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1443418273, now seen corresponding path program 1 times [2020-10-28 15:24:46,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:24:46,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747636352] [2020-10-28 15:24:46,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:24:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:46,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:46,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:46,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:46,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 15:24:46,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:24:46,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-28 15:24:46,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:46,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:46,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:24:46,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-28 15:24:46,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 15:24:46,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:46,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:24:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:46,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:46,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:46,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:46,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:46,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:24:46,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:46,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:46,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:46,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:46,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:46,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:46,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:24:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:46,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:46,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:46,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:46,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:46,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:24:46,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:46,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:46,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:46,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:46,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:46,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:46,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:24:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:46,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:46,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:46,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:46,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:46,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:46,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:46,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:46,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:46,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:46,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:46,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:46,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-28 15:24:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:46,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:46,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:46,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:46,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 15:24:46,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:24:46,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-28 15:24:46,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:46,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:46,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:24:46,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 15:24:46,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 15:24:46,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:46,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:24:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:46,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:46,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:46,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:24:46,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:46,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 15:24:46,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:46,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:46,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:46,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:46,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-28 15:24:46,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:46,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:46,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:46,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:46,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:46,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:24:46,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:46,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:24:46,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:46,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:46,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:46,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:46,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:46,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:46,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:24:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:46,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:46,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:46,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:46,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:46,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:46,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:46,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:46,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:46,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:46,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:46,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:46,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:24:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:46,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:46,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:46,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:46,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:46,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:24:46,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:46,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:46,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:46,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:46,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:46,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:46,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 15:24:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:46,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:46,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:46,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:46,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 15:24:46,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:24:46,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 15:24:46,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:46,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:46,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:24:46,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 15:24:46,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 15:24:46,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:46,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:24:46,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747636352] [2020-10-28 15:24:46,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:24:46,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 15:24:46,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632086057] [2020-10-28 15:24:46,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 15:24:46,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:24:46,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 15:24:46,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-10-28 15:24:46,999 INFO L87 Difference]: Start difference. First operand 556 states and 808 transitions. Second operand 12 states. [2020-10-28 15:24:47,127 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-28 15:24:48,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:24:48,088 INFO L93 Difference]: Finished difference Result 961 states and 1410 transitions. [2020-10-28 15:24:48,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 15:24:48,088 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 84 [2020-10-28 15:24:48,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:24:48,091 INFO L225 Difference]: With dead ends: 961 [2020-10-28 15:24:48,091 INFO L226 Difference]: Without dead ends: 509 [2020-10-28 15:24:48,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2020-10-28 15:24:48,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2020-10-28 15:24:48,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 463. [2020-10-28 15:24:48,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-10-28 15:24:48,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 645 transitions. [2020-10-28 15:24:48,159 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 645 transitions. Word has length 84 [2020-10-28 15:24:48,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:24:48,160 INFO L481 AbstractCegarLoop]: Abstraction has 463 states and 645 transitions. [2020-10-28 15:24:48,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 15:24:48,160 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 645 transitions. [2020-10-28 15:24:48,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-28 15:24:48,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:24:48,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:24:48,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-28 15:24:48,162 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:24:48,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:24:48,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1231795314, now seen corresponding path program 1 times [2020-10-28 15:24:48,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:24:48,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [496172998] [2020-10-28 15:24:48,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:24:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:48,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:48,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:48,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:49,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:49,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 15:24:49,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:24:49,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1358 [2020-10-28 15:24:49,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:49,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:49,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-28 15:24:49,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-28 15:24:49,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 15:24:49,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:49,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:24:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:49,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:49,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:49,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:49,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:49,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:24:49,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:49,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:49,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:49,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:49,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:49,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:49,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:24:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:49,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:49,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:49,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:49,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:49,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:24:49,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:49,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:49,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:49,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:49,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:49,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:49,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:24:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:49,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:49,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:49,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:49,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:49,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:49,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:49,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:49,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:49,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:49,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:49,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:49,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 15:24:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:49,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:49,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:49,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-28 15:24:49,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:49,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-28 15:24:49,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:49,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:49,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 15:24:49,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:49,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-28 15:24:49,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:49,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:50,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:50,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:50,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-28 15:24:50,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:50,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-28 15:24:50,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:50,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:50,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 15:24:50,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:50,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-28 15:24:50,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:50,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:24:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:50,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:50,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:50,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 15:24:50,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:50,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 15:24:50,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:50,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:50,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 15:24:50,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:50,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 15:24:50,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:50,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:24:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:50,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:50,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:50,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 15:24:50,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:50,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 15:24:50,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:50,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:50,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:24:50,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:50,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 15:24:50,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:50,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:50,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:50,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:50,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:24:50,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:50,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:24:50,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:50,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:50,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:50,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:50,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:50,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:50,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:24:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:50,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:50,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:50,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:50,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:50,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:50,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:50,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:50,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:50,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:50,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:50,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:24:50,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:24:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:50,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:50,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:50,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:50,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:50,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:24:50,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:50,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:50,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:50,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 15:24:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:50,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:50,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:50,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:24:50,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:50,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:50,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:50,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:50,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:50,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:50,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:24:50,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:50,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:24:50,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [496172998] [2020-10-28 15:24:50,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:24:50,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-10-28 15:24:50,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075428112] [2020-10-28 15:24:50,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-28 15:24:50,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:24:50,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-28 15:24:50,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2020-10-28 15:24:50,609 INFO L87 Difference]: Start difference. First operand 463 states and 645 transitions. Second operand 23 states. [2020-10-28 15:24:51,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:24:51,894 INFO L93 Difference]: Finished difference Result 516 states and 734 transitions. [2020-10-28 15:24:51,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 15:24:51,895 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 93 [2020-10-28 15:24:51,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:24:51,898 INFO L225 Difference]: With dead ends: 516 [2020-10-28 15:24:51,898 INFO L226 Difference]: Without dead ends: 490 [2020-10-28 15:24:51,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=82, Invalid=620, Unknown=0, NotChecked=0, Total=702 [2020-10-28 15:24:51,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-10-28 15:24:51,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 474. [2020-10-28 15:24:51,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2020-10-28 15:24:51,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 661 transitions. [2020-10-28 15:24:51,964 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 661 transitions. Word has length 93 [2020-10-28 15:24:51,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:24:51,964 INFO L481 AbstractCegarLoop]: Abstraction has 474 states and 661 transitions. [2020-10-28 15:24:51,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-28 15:24:51,965 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 661 transitions. [2020-10-28 15:24:51,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-28 15:24:51,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:24:51,966 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:24:51,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-28 15:24:51,966 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:24:51,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:24:51,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1842690644, now seen corresponding path program 1 times [2020-10-28 15:24:51,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:24:51,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [157967699] [2020-10-28 15:24:51,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:24:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:52,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:52,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:52,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:53,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:53,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-28 15:24:53,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:24:53,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1193 [2020-10-28 15:24:53,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:53,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:53,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-28 15:24:53,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-28 15:24:53,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 15:24:53,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:53,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:24:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:53,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:53,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:53,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:53,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:53,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:24:53,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:53,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:53,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:53,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:53,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:53,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:53,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:24:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:53,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:53,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:53,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:53,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:53,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:53,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:53,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:53,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:53,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:53,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:53,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:53,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:24:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:53,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:53,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:53,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:53,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:53,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:53,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:53,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:53,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:53,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:53,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:53,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:53,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 15:24:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:53,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:53,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:53,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 15:24:53,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:53,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-28 15:24:53,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:53,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:53,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 15:24:53,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:53,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 15:24:53,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:53,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:53,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:53,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:53,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-28 15:24:53,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:53,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-28 15:24:53,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:53,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 15:24:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 15:24:53,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:53,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:24:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:53,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:53,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:53,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-28 15:24:53,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:53,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 15:24:53,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:53,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:53,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 15:24:53,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:53,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-28 15:24:53,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:54,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:24:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:54,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:54,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:54,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:24:54,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:54,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 15:24:54,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:54,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:54,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:24:54,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:54,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 15:24:54,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:54,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:24:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:54,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:54,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:54,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:24:54,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:54,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:24:54,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:54,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:54,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:54,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:54,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:54,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:54,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:24:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:54,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:54,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:54,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:54,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:54,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:54,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:54,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:54,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:54,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:54,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:54,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:24:54,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:24:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:54,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:54,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:54,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:24:54,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:54,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:54,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:54,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:54,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:24:54,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:54,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:24:54,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:54,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-28 15:24:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:54,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:54,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:24:54,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:24:54,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:24:54,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:24:54,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:24:54,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:24:54,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:24:54,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:24:54,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:24:54,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:24:54,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:24:54,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [157967699] [2020-10-28 15:24:54,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:24:54,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-10-28 15:24:54,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635461106] [2020-10-28 15:24:54,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-28 15:24:54,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:24:54,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-28 15:24:54,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2020-10-28 15:24:54,265 INFO L87 Difference]: Start difference. First operand 474 states and 661 transitions. Second operand 23 states. [2020-10-28 15:24:55,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:24:55,549 INFO L93 Difference]: Finished difference Result 519 states and 737 transitions. [2020-10-28 15:24:55,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 15:24:55,550 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 94 [2020-10-28 15:24:55,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:24:55,552 INFO L225 Difference]: With dead ends: 519 [2020-10-28 15:24:55,552 INFO L226 Difference]: Without dead ends: 493 [2020-10-28 15:24:55,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=82, Invalid=620, Unknown=0, NotChecked=0, Total=702 [2020-10-28 15:24:55,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-10-28 15:24:55,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 466. [2020-10-28 15:24:55,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-10-28 15:24:55,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 648 transitions. [2020-10-28 15:24:55,616 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 648 transitions. Word has length 94 [2020-10-28 15:24:55,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:24:55,617 INFO L481 AbstractCegarLoop]: Abstraction has 466 states and 648 transitions. [2020-10-28 15:24:55,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-28 15:24:55,617 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 648 transitions. [2020-10-28 15:24:55,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-28 15:24:55,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:24:55,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:24:55,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-28 15:24:55,619 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:24:55,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:24:55,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1720149627, now seen corresponding path program 1 times [2020-10-28 15:24:55,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:24:55,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1425079499] [2020-10-28 15:24:55,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:24:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:24:55,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:55,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:55,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:24:56,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:00,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:00,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 15:25:00,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 15:25:00,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-28 15:25:00,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:00,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:00,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:25:00,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-28 15:25:00,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 15:25:00,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:00,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:25:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:00,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:00,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:00,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:00,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:00,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:25:00,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:00,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:00,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:00,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:00,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:00,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:00,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:25:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:00,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:00,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:00,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:00,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:00,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:00,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:00,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:00,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:00,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:00,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:00,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:00,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:25:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:00,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:00,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:00,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:00,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:00,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:00,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:00,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:00,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:00,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:00,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:00,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:00,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 15:25:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:00,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:00,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:01,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:01,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 15:25:01,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:25:01,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-28 15:25:01,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:01,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:01,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:25:01,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-28 15:25:01,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 15:25:01,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:01,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:01,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:01,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:01,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:01,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 15:25:01,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:25:01,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-28 15:25:01,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:01,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:01,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:25:01,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 15:25:01,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 15:25:01,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:01,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:01,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:01,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:01,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:01,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-28 15:25:01,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:25:01,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-28 15:25:01,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:01,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:01,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:25:01,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-28 15:25:01,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 15:25:01,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:25:01,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:25:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:01,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:01,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:01,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 15:25:01,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:01,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 15:25:01,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:01,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:01,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:25:01,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:01,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 15:25:01,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:01,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:01,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:01,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:01,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:25:01,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:01,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 15:25:01,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:01,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:01,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:01,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:01,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:01,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:01,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:01,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:01,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:01,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:01,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:01,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:01,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:01,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:01,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:01,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:01,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:01,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:01,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:25:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:01,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:01,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:01,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:01,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:01,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:01,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:01,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:01,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:01,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:01,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:01,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:01,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-28 15:25:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:01,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:01,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:01,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 15:25:01,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:01,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:25:01,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:01,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:01,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:01,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-28 15:25:01,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:01,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:01,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 15:25:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:01,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:01,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:01,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:25:01,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:01,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:01,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:01,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:01,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:01,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 15:25:01,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:01,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:01,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:25:01,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1425079499] [2020-10-28 15:25:01,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:25:01,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-28 15:25:01,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031900728] [2020-10-28 15:25:01,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-28 15:25:01,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:25:01,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-28 15:25:01,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-28 15:25:01,576 INFO L87 Difference]: Start difference. First operand 466 states and 648 transitions. Second operand 15 states. [2020-10-28 15:25:02,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:25:02,430 INFO L93 Difference]: Finished difference Result 846 states and 1190 transitions. [2020-10-28 15:25:02,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 15:25:02,430 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 103 [2020-10-28 15:25:02,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:25:02,438 INFO L225 Difference]: With dead ends: 846 [2020-10-28 15:25:02,438 INFO L226 Difference]: Without dead ends: 491 [2020-10-28 15:25:02,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2020-10-28 15:25:02,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-10-28 15:25:02,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 474. [2020-10-28 15:25:02,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2020-10-28 15:25:02,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 660 transitions. [2020-10-28 15:25:02,491 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 660 transitions. Word has length 103 [2020-10-28 15:25:02,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:25:02,491 INFO L481 AbstractCegarLoop]: Abstraction has 474 states and 660 transitions. [2020-10-28 15:25:02,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-28 15:25:02,491 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 660 transitions. [2020-10-28 15:25:02,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-28 15:25:02,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:25:02,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:25:02,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-28 15:25:02,493 INFO L429 AbstractCegarLoop]: === Iteration 37 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:25:02,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:25:02,493 INFO L82 PathProgramCache]: Analyzing trace with hash 723970623, now seen corresponding path program 1 times [2020-10-28 15:25:02,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:25:02,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724434321] [2020-10-28 15:25:02,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:25:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:02,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:02,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:02,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:03,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:07,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:07,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-28 15:25:07,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 15:25:07,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 15:25:07,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:07,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:07,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:25:07,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-28 15:25:07,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 15:25:07,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:07,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:25:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:07,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:07,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:07,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:07,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:07,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:25:07,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:07,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:07,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:07,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:07,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:07,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:07,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:25:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:07,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:07,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:07,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:07,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:07,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:25:07,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:07,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:07,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:07,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:07,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:07,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:07,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:25:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:07,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:07,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:07,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:07,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:07,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:07,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:07,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:07,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:07,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:07,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:07,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:07,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 15:25:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:07,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:07,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:08,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:08,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 15:25:08,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:25:08,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-28 15:25:08,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:08,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:08,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:25:08,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-28 15:25:08,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 15:25:08,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:08,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:08,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:08,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:08,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:08,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-28 15:25:08,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:25:08,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-28 15:25:08,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:08,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:08,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:25:08,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 15:25:08,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 15:25:08,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:08,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:08,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:08,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:08,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:08,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-28 15:25:08,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:25:08,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-28 15:25:08,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:08,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:08,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:25:08,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-28 15:25:08,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 15:25:08,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:08,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:25:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:08,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:08,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:08,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:25:08,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:08,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 15:25:08,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:08,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:08,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:25:08,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:08,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 15:25:08,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:08,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:08,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:08,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:08,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:25:08,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:08,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:08,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:08,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:08,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:08,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:08,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:08,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:08,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:08,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:08,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:08,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:08,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:08,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:08,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:08,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:08,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:08,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:08,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:08,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:08,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:25:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:08,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:08,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:08,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:08,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:08,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:08,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:08,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:08,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:08,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:08,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:08,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:08,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 15:25:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:08,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:08,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:08,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 15:25:08,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:08,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:08,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:08,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:08,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:08,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-28 15:25:08,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:08,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:08,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 15:25:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:08,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:08,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:08,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:25:08,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:08,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:08,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:08,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:08,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:08,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 15:25:08,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:08,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:08,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:25:08,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724434321] [2020-10-28 15:25:08,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:25:08,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-28 15:25:08,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425216468] [2020-10-28 15:25:08,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-28 15:25:08,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:25:08,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-28 15:25:08,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-28 15:25:08,620 INFO L87 Difference]: Start difference. First operand 474 states and 660 transitions. Second operand 15 states. [2020-10-28 15:25:09,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:25:09,585 INFO L93 Difference]: Finished difference Result 842 states and 1183 transitions. [2020-10-28 15:25:09,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 15:25:09,586 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 104 [2020-10-28 15:25:09,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:25:09,588 INFO L225 Difference]: With dead ends: 842 [2020-10-28 15:25:09,588 INFO L226 Difference]: Without dead ends: 481 [2020-10-28 15:25:09,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2020-10-28 15:25:09,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-10-28 15:25:09,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 459. [2020-10-28 15:25:09,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-10-28 15:25:09,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 637 transitions. [2020-10-28 15:25:09,652 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 637 transitions. Word has length 104 [2020-10-28 15:25:09,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:25:09,653 INFO L481 AbstractCegarLoop]: Abstraction has 459 states and 637 transitions. [2020-10-28 15:25:09,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-28 15:25:09,653 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 637 transitions. [2020-10-28 15:25:09,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-28 15:25:09,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:25:09,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:25:09,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-28 15:25:09,654 INFO L429 AbstractCegarLoop]: === Iteration 38 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:25:09,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:25:09,655 INFO L82 PathProgramCache]: Analyzing trace with hash -156440098, now seen corresponding path program 1 times [2020-10-28 15:25:09,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:25:09,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1794899275] [2020-10-28 15:25:09,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:25:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:09,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:10,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:10,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-28 15:25:10,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:10,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 397 [2020-10-28 15:25:10,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:10,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:10,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 15:25:10,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 15:25:10,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 15:25:10,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:10,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:25:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:10,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:10,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:10,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:10,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:10,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:25:10,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:10,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:10,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:10,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:10,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:10,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:10,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:25:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:10,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:10,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:10,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:10,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:10,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:10,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:10,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:10,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:10,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:25:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:10,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:10,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:10,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:10,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:10,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:25:10,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:10,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:10,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:10,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:10,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:25:10,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:10,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 15:25:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:10,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:10,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:10,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 15:25:10,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:10,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-28 15:25:10,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:10,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:10,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 15:25:10,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 15:25:10,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-28 15:25:10,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:10,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:10,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:10,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:10,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-28 15:25:10,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:10,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-28 15:25:10,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:10,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:10,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 15:25:10,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 15:25:10,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 15:25:10,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:10,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:10,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:10,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:10,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-28 15:25:10,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:10,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 15:25:10,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:10,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:25:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 15:25:10,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:10,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:25:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:11,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:11,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:11,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:25:11,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:11,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:25:11,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:11,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:11,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:11,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:11,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:11,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:11,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:11,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:11,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:11,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:25:11,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:11,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:11,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:11,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:11,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:11,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:11,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:11,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:11,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:11,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:11,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:11,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:11,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:11,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:11,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:11,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:11,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:11,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:11,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:11,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:11,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:25:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:11,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:11,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:11,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:11,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:11,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:11,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:11,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:11,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:11,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:11,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:11,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:11,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 15:25:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:11,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:11,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:11,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 15:25:11,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:11,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:11,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:11,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:11,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:11,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:11,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:11,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:11,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 15:25:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:11,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:11,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:11,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:25:11,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:11,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:11,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:11,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:11,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:11,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:11,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:25:11,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:11,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:25:11,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1794899275] [2020-10-28 15:25:11,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:25:11,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-10-28 15:25:11,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045135167] [2020-10-28 15:25:11,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-28 15:25:11,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:25:11,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-28 15:25:11,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2020-10-28 15:25:11,156 INFO L87 Difference]: Start difference. First operand 459 states and 637 transitions. Second operand 23 states. [2020-10-28 15:25:11,381 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 15:25:15,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:25:15,335 INFO L93 Difference]: Finished difference Result 914 states and 1289 transitions. [2020-10-28 15:25:15,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-28 15:25:15,336 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 104 [2020-10-28 15:25:15,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:25:15,342 INFO L225 Difference]: With dead ends: 914 [2020-10-28 15:25:15,342 INFO L226 Difference]: Without dead ends: 877 [2020-10-28 15:25:15,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=289, Invalid=2261, Unknown=0, NotChecked=0, Total=2550 [2020-10-28 15:25:15,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2020-10-28 15:25:15,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 854. [2020-10-28 15:25:15,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 854 states. [2020-10-28 15:25:15,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1206 transitions. [2020-10-28 15:25:15,435 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1206 transitions. Word has length 104 [2020-10-28 15:25:15,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:25:15,435 INFO L481 AbstractCegarLoop]: Abstraction has 854 states and 1206 transitions. [2020-10-28 15:25:15,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-28 15:25:15,435 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1206 transitions. [2020-10-28 15:25:15,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-28 15:25:15,437 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:25:15,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:25:15,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-28 15:25:15,438 INFO L429 AbstractCegarLoop]: === Iteration 39 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:25:15,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:25:15,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1039949088, now seen corresponding path program 1 times [2020-10-28 15:25:15,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:25:15,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594317784] [2020-10-28 15:25:15,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:25:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:15,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:15,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:15,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-28 15:25:15,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:15,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-10-28 15:25:15,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:15,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:15,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 15:25:15,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 15:25:15,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-28 15:25:15,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:16,048 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-28 15:25:16,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:25:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:16,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:16,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:16,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:16,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:16,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:25:16,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:16,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:16,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:16,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:16,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:16,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:16,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:25:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:16,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:16,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:16,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:16,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:16,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:16,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:16,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:16,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:16,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:16,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:16,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:16,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:25:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:16,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:16,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:16,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:16,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:16,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:16,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:16,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:16,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:16,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:16,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:25:16,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:16,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 15:25:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:16,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:16,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:16,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 15:25:16,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:16,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-28 15:25:16,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:16,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:16,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 15:25:16,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 15:25:16,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-28 15:25:16,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:16,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:16,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:16,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:16,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-28 15:25:16,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:16,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-28 15:25:16,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:16,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 15:25:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 15:25:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 15:25:16,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:16,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:16,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:16,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:16,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-28 15:25:16,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:16,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 15:25:16,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:16,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:16,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:25:16,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:16,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 15:25:16,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:16,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:25:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:16,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:16,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:16,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:25:16,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:16,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:25:16,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:16,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:16,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:16,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:16,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:16,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:16,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:16,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:16,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:16,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:25:16,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:16,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:16,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:16,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:16,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:16,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:16,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:16,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:16,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:16,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:16,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:16,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:16,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:16,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:16,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:16,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:16,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:16,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:16,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:16,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:16,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:25:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:16,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:16,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:16,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:16,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:16,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:16,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:16,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:16,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:16,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:16,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:16,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:16,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 15:25:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:16,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:16,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:16,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 15:25:16,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:16,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:16,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:16,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:16,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:16,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:16,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:16,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:16,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 15:25:16,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:16,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:16,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:16,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:25:16,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:16,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:16,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:16,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:16,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:16,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:16,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:25:16,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:17,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:25:17,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594317784] [2020-10-28 15:25:17,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:25:17,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-10-28 15:25:17,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99999967] [2020-10-28 15:25:17,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-28 15:25:17,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:25:17,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-28 15:25:17,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2020-10-28 15:25:17,011 INFO L87 Difference]: Start difference. First operand 854 states and 1206 transitions. Second operand 23 states. [2020-10-28 15:25:17,177 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 15:25:21,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:25:21,810 INFO L93 Difference]: Finished difference Result 901 states and 1273 transitions. [2020-10-28 15:25:21,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-28 15:25:21,811 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 104 [2020-10-28 15:25:21,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:25:21,814 INFO L225 Difference]: With dead ends: 901 [2020-10-28 15:25:21,814 INFO L226 Difference]: Without dead ends: 864 [2020-10-28 15:25:21,815 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=257, Invalid=1723, Unknown=0, NotChecked=0, Total=1980 [2020-10-28 15:25:21,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-10-28 15:25:21,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 449. [2020-10-28 15:25:21,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2020-10-28 15:25:21,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 624 transitions. [2020-10-28 15:25:21,869 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 624 transitions. Word has length 104 [2020-10-28 15:25:21,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:25:21,869 INFO L481 AbstractCegarLoop]: Abstraction has 449 states and 624 transitions. [2020-10-28 15:25:21,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-28 15:25:21,869 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 624 transitions. [2020-10-28 15:25:21,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-28 15:25:21,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:25:21,871 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:25:21,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-28 15:25:21,872 INFO L429 AbstractCegarLoop]: === Iteration 40 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:25:21,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:25:21,872 INFO L82 PathProgramCache]: Analyzing trace with hash -954863068, now seen corresponding path program 1 times [2020-10-28 15:25:21,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:25:21,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109891014] [2020-10-28 15:25:21,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:25:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:21,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:22,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:22,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:23,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:23,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 15:25:23,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:25:23,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1241 [2020-10-28 15:25:23,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:23,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:23,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-28 15:25:23,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-28 15:25:23,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-28 15:25:23,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:23,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:25:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:23,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:23,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:23,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:23,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:23,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:25:23,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:23,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:23,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:23,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:23,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:23,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:23,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:25:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:23,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:23,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:23,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:23,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:23,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:23,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:23,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:23,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:23,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:23,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:23,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:23,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:25:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:23,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:23,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:23,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:23,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:23,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:23,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:23,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:23,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:23,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:23,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:23,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:23,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 15:25:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:23,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:23,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:23,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-28 15:25:23,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:23,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-28 15:25:23,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:23,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:23,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 15:25:23,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:23,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-28 15:25:23,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:23,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 15:25:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:23,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:23,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:23,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 15:25:23,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:23,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-28 15:25:23,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:23,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:23,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 15:25:23,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:23,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 15:25:23,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:23,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:23,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:23,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:23,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 15:25:23,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:23,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 15:25:23,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:23,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:23,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 15:25:23,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:23,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 15:25:23,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:24,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:25:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:24,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:24,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:24,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 15:25:24,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:24,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 15:25:24,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:24,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:24,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:25:24,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:24,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 15:25:24,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:25:24,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:24,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:24,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:24,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:25:24,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:24,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:24,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:24,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:24,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:24,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:24,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:24,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:24,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:24,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:24,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:24,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:24,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:24,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:24,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:24,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:24,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:24,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:24,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:24,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:24,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:25:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:24,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:24,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:24,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:24,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:24,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:24,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:24,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:24,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:24,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:24,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:24,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:25:24,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 15:25:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:24,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:24,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:24,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:24,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:24,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:24,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:24,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:24,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:24,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:24,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:25:24,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:24,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 15:25:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:24,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:24,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:24,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 15:25:24,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:24,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 15:25:24,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:24,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:24,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:24,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:24,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 15:25:24,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:24,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:24,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:24,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:24,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:25:24,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:24,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:24,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:24,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:24,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:24,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:24,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:24,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:24,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-28 15:25:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:24,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:24,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:24,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:25:24,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:24,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:24,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:24,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:24,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:24,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:24,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:25:24,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:24,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:25:24,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [109891014] [2020-10-28 15:25:24,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:25:24,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-28 15:25:24,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505711723] [2020-10-28 15:25:24,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-28 15:25:24,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:25:24,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-28 15:25:24,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2020-10-28 15:25:24,392 INFO L87 Difference]: Start difference. First operand 449 states and 624 transitions. Second operand 25 states. [2020-10-28 15:25:26,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:25:26,060 INFO L93 Difference]: Finished difference Result 507 states and 722 transitions. [2020-10-28 15:25:26,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-28 15:25:26,060 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 109 [2020-10-28 15:25:26,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:25:26,062 INFO L225 Difference]: With dead ends: 507 [2020-10-28 15:25:26,062 INFO L226 Difference]: Without dead ends: 479 [2020-10-28 15:25:26,063 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=144, Invalid=1116, Unknown=0, NotChecked=0, Total=1260 [2020-10-28 15:25:26,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2020-10-28 15:25:26,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 465. [2020-10-28 15:25:26,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2020-10-28 15:25:26,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 647 transitions. [2020-10-28 15:25:26,119 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 647 transitions. Word has length 109 [2020-10-28 15:25:26,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:25:26,119 INFO L481 AbstractCegarLoop]: Abstraction has 465 states and 647 transitions. [2020-10-28 15:25:26,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-28 15:25:26,120 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 647 transitions. [2020-10-28 15:25:26,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-28 15:25:26,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:25:26,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:25:26,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-28 15:25:26,121 INFO L429 AbstractCegarLoop]: === Iteration 41 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:25:26,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:25:26,122 INFO L82 PathProgramCache]: Analyzing trace with hash 548154866, now seen corresponding path program 1 times [2020-10-28 15:25:26,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:25:26,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1813540822] [2020-10-28 15:25:26,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:25:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:26,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:26,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:26,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:27,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:27,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-28 15:25:27,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:25:27,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1174 [2020-10-28 15:25:27,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:27,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-28 15:25:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-28 15:25:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-28 15:25:27,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:27,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:25:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:27,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:27,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:27,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:27,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:27,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:25:27,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:27,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:27,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:27,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:27,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:27,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:27,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:25:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:27,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:27,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:27,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:27,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:27,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:27,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:27,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:27,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:27,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:25:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:27,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:27,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:27,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:27,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:27,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:27,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:27,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:27,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:27,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:27,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:27,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:27,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 15:25:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:27,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:27,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:27,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:28,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:28,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-28 15:25:28,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:25:28,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 459 [2020-10-28 15:25:28,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:28,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:28,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 15:25:28,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:28,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-28 15:25:28,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:28,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 15:25:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:28,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:28,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:28,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:28,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:28,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-28 15:25:28,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:25:28,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-10-28 15:25:28,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:28,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:28,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 15:25:28,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:28,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 15:25:28,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:28,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:28,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:28,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:28,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:28,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:28,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-28 15:25:28,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:25:28,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-28 15:25:28,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:28,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:28,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 15:25:28,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:28,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-28 15:25:28,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:28,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:25:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:28,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:28,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:28,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:28,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:25:28,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:25:28,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 15:25:28,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:28,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:28,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:25:28,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:28,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 15:25:28,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:28,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:28,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:28,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:28,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:25:28,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:28,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:28,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:28,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:28,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:28,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:28,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:28,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:28,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:29,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:29,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:29,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:29,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:29,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:29,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:29,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:29,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:29,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:29,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:29,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:29,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:25:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:29,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:29,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:29,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:29,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:29,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:29,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:29,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:29,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:29,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:29,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:29,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:25:29,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-28 15:25:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:29,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:29,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:29,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:29,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:29,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:29,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:29,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:29,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:29,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:29,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:25:29,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:29,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 15:25:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:29,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:29,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:29,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 15:25:29,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:29,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 15:25:29,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:29,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:29,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:29,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:29,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 15:25:29,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:29,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:29,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:29,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:29,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:25:29,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:29,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:29,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:29,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:29,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:29,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:29,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:29,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:29,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 15:25:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:29,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:29,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:29,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:25:29,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:29,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:29,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:29,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:29,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:29,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:29,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:25:29,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:29,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:25:29,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1813540822] [2020-10-28 15:25:29,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:25:29,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-28 15:25:29,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538692471] [2020-10-28 15:25:29,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-28 15:25:29,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:25:29,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-28 15:25:29,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2020-10-28 15:25:29,175 INFO L87 Difference]: Start difference. First operand 465 states and 647 transitions. Second operand 25 states. [2020-10-28 15:25:31,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:25:31,442 INFO L93 Difference]: Finished difference Result 509 states and 720 transitions. [2020-10-28 15:25:31,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-28 15:25:31,442 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 110 [2020-10-28 15:25:31,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:25:31,444 INFO L225 Difference]: With dead ends: 509 [2020-10-28 15:25:31,445 INFO L226 Difference]: Without dead ends: 468 [2020-10-28 15:25:31,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=144, Invalid=1116, Unknown=0, NotChecked=0, Total=1260 [2020-10-28 15:25:31,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2020-10-28 15:25:31,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 407. [2020-10-28 15:25:31,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2020-10-28 15:25:31,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 543 transitions. [2020-10-28 15:25:31,496 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 543 transitions. Word has length 110 [2020-10-28 15:25:31,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:25:31,496 INFO L481 AbstractCegarLoop]: Abstraction has 407 states and 543 transitions. [2020-10-28 15:25:31,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-28 15:25:31,496 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 543 transitions. [2020-10-28 15:25:31,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-28 15:25:31,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:25:31,498 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 15:25:31,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-28 15:25:31,498 INFO L429 AbstractCegarLoop]: === Iteration 42 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:25:31,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:25:31,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1362228414, now seen corresponding path program 1 times [2020-10-28 15:25:31,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:25:31,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [772979424] [2020-10-28 15:25:31,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:25:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:31,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:31,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:31,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:31,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:31,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:31,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-28 15:25:31,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 15:25:31,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-10-28 15:25:31,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:31,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:31,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:25:31,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-28 15:25:31,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 15:25:31,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:32,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:25:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:32,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:32,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:32,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:32,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:25:32,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:32,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:32,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:32,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:32,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:32,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:32,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:25:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:32,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:32,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:32,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:32,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:32,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:32,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:32,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:32,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:32,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:32,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:32,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:25:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:32,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:32,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:32,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:32,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:32,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:32,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:32,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:32,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:32,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:32,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:32,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-28 15:25:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:32,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:32,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 15:25:32,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:32,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 15:25:32,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:32,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:32,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:32,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:32,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:32,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:32,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:25:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:32,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:32,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 15:25:32,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:32,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:25:32,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:32,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:32,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:32,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:32,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:32,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:32,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:32,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:32,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:25:32,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:32,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:25:32,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:32,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:32,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:32,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:32,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:32,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:32,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:32,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:32,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:32,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:32,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:32,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:32,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:32,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:32,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:32,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:32,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:32,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:25:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:32,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:32,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:32,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:32,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:32,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:32,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:32,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:32,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:32,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:32,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:32,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-28 15:25:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:32,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:32,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:32,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:32,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:32,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:32,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:32,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:32,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:32,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:32,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:32,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 15:25:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:32,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:32,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-28 15:25:32,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 15:25:32,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-28 15:25:32,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:32,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:32,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:25:32,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-28 15:25:32,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 15:25:32,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:32,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:32,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:32,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:25:32,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:32,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:32,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:32,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:32,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:32,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:32,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:32,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:32,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 15:25:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:32,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:32,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:25:32,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:25:32,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 15:25:32,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:32,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:32,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:25:32,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:32,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 15:25:32,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:32,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:32,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:32,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:25:32,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:32,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:32,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:32,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:32,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:32,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:32,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:32,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:32,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:32,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:32,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:32,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:32,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:32,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:32,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:32,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:32,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:32,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:32,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:32,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:25:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:32,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:32,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:32,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:32,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:32,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:32,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:32,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:32,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:32,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:32,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:32,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:32,588 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-28 15:25:32,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [772979424] [2020-10-28 15:25:32,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:25:32,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-28 15:25:32,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55455711] [2020-10-28 15:25:32,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-28 15:25:32,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:25:32,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-28 15:25:32,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-28 15:25:32,590 INFO L87 Difference]: Start difference. First operand 407 states and 543 transitions. Second operand 15 states. [2020-10-28 15:25:33,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:25:33,837 INFO L93 Difference]: Finished difference Result 721 states and 957 transitions. [2020-10-28 15:25:33,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 15:25:33,838 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 122 [2020-10-28 15:25:33,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:25:33,841 INFO L225 Difference]: With dead ends: 721 [2020-10-28 15:25:33,841 INFO L226 Difference]: Without dead ends: 413 [2020-10-28 15:25:33,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2020-10-28 15:25:33,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-10-28 15:25:33,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 402. [2020-10-28 15:25:33,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-10-28 15:25:33,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 526 transitions. [2020-10-28 15:25:33,884 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 526 transitions. Word has length 122 [2020-10-28 15:25:33,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:25:33,885 INFO L481 AbstractCegarLoop]: Abstraction has 402 states and 526 transitions. [2020-10-28 15:25:33,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-28 15:25:33,885 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 526 transitions. [2020-10-28 15:25:33,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-28 15:25:33,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:25:33,886 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 15:25:33,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-28 15:25:33,887 INFO L429 AbstractCegarLoop]: === Iteration 43 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:25:33,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:25:33,887 INFO L82 PathProgramCache]: Analyzing trace with hash 605545155, now seen corresponding path program 1 times [2020-10-28 15:25:33,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:25:33,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324360711] [2020-10-28 15:25:33,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:25:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:33,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:33,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:34,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:34,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-28 15:25:34,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:25:34,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 418 [2020-10-28 15:25:34,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:34,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:34,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:25:34,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-28 15:25:34,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 15:25:34,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:34,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:25:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:34,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:34,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:34,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:34,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:34,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:25:34,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:34,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:34,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:34,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:34,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:34,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:34,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:25:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:34,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:34,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:34,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:34,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:34,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:34,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:34,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:34,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:34,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:34,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:34,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:34,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:25:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:34,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:34,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:34,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:34,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:34,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:34,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:34,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:34,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:34,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:34,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:34,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:34,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-28 15:25:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:34,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:34,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:34,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 15:25:34,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:34,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:25:34,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:34,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:34,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:34,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:34,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:34,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:34,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:25:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:34,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:34,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:34,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 15:25:34,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:34,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:25:34,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:34,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:34,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:34,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:34,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:34,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:34,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:34,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:34,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:34,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:25:34,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:34,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:34,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:34,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:34,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:34,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:34,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:34,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:34,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:34,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:34,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:34,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:34,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:34,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:34,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:34,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:34,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:34,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:34,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:34,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:34,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:25:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:34,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:34,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:34,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:34,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:34,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:34,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:34,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:34,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:34,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:34,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:34,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:34,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-28 15:25:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:34,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:34,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:34,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:34,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:34,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:34,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:34,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:34,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:34,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:34,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:34,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:34,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 15:25:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:34,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:34,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:34,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:34,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-28 15:25:34,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:25:34,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-28 15:25:34,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:34,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:34,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:25:34,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-28 15:25:34,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 15:25:34,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:34,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:34,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:34,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:34,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:25:34,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:34,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:34,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:34,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:34,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:34,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:34,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:34,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:34,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 15:25:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:34,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:34,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:34,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:34,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:25:34,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:25:34,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 15:25:34,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:34,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:34,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:25:34,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:34,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 15:25:34,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:34,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:34,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:34,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:34,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:25:34,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:34,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:25:34,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:34,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:34,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:34,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:34,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:34,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:34,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:34,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:34,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:34,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:34,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:34,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:34,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:34,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:34,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:34,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:34,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:34,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:34,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:25:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:34,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:34,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:34,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:34,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:34,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:34,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:34,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:34,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:34,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:34,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:34,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:34,984 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-28 15:25:34,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324360711] [2020-10-28 15:25:34,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:25:34,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-28 15:25:34,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46311054] [2020-10-28 15:25:34,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-28 15:25:34,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:25:34,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-28 15:25:34,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-28 15:25:34,986 INFO L87 Difference]: Start difference. First operand 402 states and 526 transitions. Second operand 15 states. [2020-10-28 15:25:36,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:25:36,541 INFO L93 Difference]: Finished difference Result 587 states and 818 transitions. [2020-10-28 15:25:36,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 15:25:36,541 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 123 [2020-10-28 15:25:36,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:25:36,545 INFO L225 Difference]: With dead ends: 587 [2020-10-28 15:25:36,545 INFO L226 Difference]: Without dead ends: 541 [2020-10-28 15:25:36,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2020-10-28 15:25:36,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2020-10-28 15:25:36,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 393. [2020-10-28 15:25:36,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-10-28 15:25:36,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 515 transitions. [2020-10-28 15:25:36,602 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 515 transitions. Word has length 123 [2020-10-28 15:25:36,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:25:36,603 INFO L481 AbstractCegarLoop]: Abstraction has 393 states and 515 transitions. [2020-10-28 15:25:36,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-28 15:25:36,603 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 515 transitions. [2020-10-28 15:25:36,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 15:25:36,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:25:36,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:25:36,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-28 15:25:36,604 INFO L429 AbstractCegarLoop]: === Iteration 44 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:25:36,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:25:36,605 INFO L82 PathProgramCache]: Analyzing trace with hash -279464192, now seen corresponding path program 1 times [2020-10-28 15:25:36,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:25:36,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2091616045] [2020-10-28 15:25:36,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:25:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:36,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:37,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:37,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-28 15:25:37,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:37,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-10-28 15:25:37,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:37,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:37,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 15:25:37,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 15:25:37,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-28 15:25:37,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:37,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:25:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:37,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:37,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:37,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:37,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:37,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:25:37,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:37,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:37,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:37,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:37,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:37,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:37,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:25:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:37,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:37,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:37,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:37,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:37,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:37,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:37,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:37,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:37,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:37,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:37,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:37,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:25:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:37,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:37,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:37,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:37,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:37,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:25:37,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:37,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:37,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:37,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:37,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:25:37,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:37,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 15:25:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:37,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:37,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:37,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 15:25:37,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:37,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-28 15:25:37,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:37,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:37,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 15:25:37,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 15:25:37,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-28 15:25:37,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:37,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 15:25:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:37,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:37,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:37,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 15:25:37,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:37,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-28 15:25:37,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:37,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:37,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 15:25:37,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 15:25:37,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-28 15:25:37,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:38,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:38,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:38,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:38,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-28 15:25:38,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:38,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 15:25:38,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:38,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:38,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:25:38,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:38,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 15:25:38,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:38,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:25:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:38,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:38,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:38,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:25:38,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:38,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:25:38,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:38,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:38,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:38,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:38,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:38,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:38,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:38,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:38,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:38,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:38,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:25:38,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:38,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:38,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:38,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:38,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:38,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:38,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:38,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:38,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:38,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:38,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:38,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:38,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:38,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:38,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:38,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:38,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:38,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:25:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:38,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:38,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:38,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:38,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:38,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:38,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:38,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:38,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:38,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:38,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:38,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:38,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 15:25:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:38,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:38,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:38,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 15:25:38,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:38,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 15:25:38,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:38,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:38,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:38,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:38,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:38,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:38,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 15:25:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:38,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:38,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:38,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:38,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:38,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:38,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:38,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:38,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:25:38,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:38,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 15:25:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:38,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:38,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:38,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 15:25:38,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:38,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 15:25:38,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:38,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:38,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:38,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:38,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 15:25:38,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:38,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:38,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:38,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:38,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:25:38,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:38,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:38,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:38,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:38,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:38,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 15:25:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:38,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:38,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:38,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:25:38,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:38,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:38,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:38,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:38,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:38,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:38,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:25:38,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:25:38,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2091616045] [2020-10-28 15:25:38,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:25:38,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-28 15:25:38,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508568304] [2020-10-28 15:25:38,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-28 15:25:38,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:25:38,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-28 15:25:38,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=505, Unknown=0, NotChecked=0, Total=600 [2020-10-28 15:25:38,407 INFO L87 Difference]: Start difference. First operand 393 states and 515 transitions. Second operand 25 states. [2020-10-28 15:25:38,650 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-28 15:25:42,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:25:42,561 INFO L93 Difference]: Finished difference Result 768 states and 1025 transitions. [2020-10-28 15:25:42,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-28 15:25:42,562 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 120 [2020-10-28 15:25:42,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:25:42,566 INFO L225 Difference]: With dead ends: 768 [2020-10-28 15:25:42,566 INFO L226 Difference]: Without dead ends: 727 [2020-10-28 15:25:42,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=341, Invalid=2209, Unknown=0, NotChecked=0, Total=2550 [2020-10-28 15:25:42,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2020-10-28 15:25:42,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 707. [2020-10-28 15:25:42,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2020-10-28 15:25:42,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 917 transitions. [2020-10-28 15:25:42,676 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 917 transitions. Word has length 120 [2020-10-28 15:25:42,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:25:42,676 INFO L481 AbstractCegarLoop]: Abstraction has 707 states and 917 transitions. [2020-10-28 15:25:42,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-28 15:25:42,676 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 917 transitions. [2020-10-28 15:25:42,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-28 15:25:42,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:25:42,678 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:25:42,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-28 15:25:42,679 INFO L429 AbstractCegarLoop]: === Iteration 45 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:25:42,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:25:42,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1318048766, now seen corresponding path program 1 times [2020-10-28 15:25:42,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:25:42,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105418506] [2020-10-28 15:25:42,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:25:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:42,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:43,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:43,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-28 15:25:43,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:43,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 517 [2020-10-28 15:25:43,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:43,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:43,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 15:25:43,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 15:25:43,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 15:25:43,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:43,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:25:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:43,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:43,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:43,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:43,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:43,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:25:43,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:43,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:43,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:43,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:43,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:43,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:43,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:25:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:43,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:43,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:43,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:43,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:43,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:43,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:43,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:43,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:43,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:43,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:43,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:43,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:25:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:43,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:43,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:43,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:43,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:43,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:43,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:43,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:43,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:43,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:43,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:25:43,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:43,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-28 15:25:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:43,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:43,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:43,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 15:25:43,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:43,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-28 15:25:43,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:43,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:43,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 15:25:43,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 15:25:43,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-28 15:25:43,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:43,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 15:25:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:43,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:44,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:44,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-28 15:25:44,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:44,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-28 15:25:44,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:44,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:44,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 15:25:44,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 15:25:44,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-28 15:25:44,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:44,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:44,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:44,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:44,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-28 15:25:44,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:44,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-28 15:25:44,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:44,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:44,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:25:44,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:44,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 15:25:44,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:44,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:25:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:44,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:44,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:44,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:25:44,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:44,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:25:44,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:44,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:44,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:44,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:44,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:44,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:44,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:44,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:44,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:44,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:25:44,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:44,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:44,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:44,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:44,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:44,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:44,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:44,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:44,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:44,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:44,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:44,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:44,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:44,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:44,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:44,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:44,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:44,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:44,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:44,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:44,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:25:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:44,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:44,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:44,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:44,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:44,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:44,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:44,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:44,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:44,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:44,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:44,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:44,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 15:25:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:44,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:44,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:44,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 15:25:44,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:44,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:44,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:44,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:44,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:44,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:44,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:44,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:44,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 15:25:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:44,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:44,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:44,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:44,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:44,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:44,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:44,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:44,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:44,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:44,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 15:25:44,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:44,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 15:25:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:44,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:44,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:44,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 15:25:44,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:44,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 15:25:44,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:44,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:44,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:44,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:44,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 15:25:44,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:44,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:44,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:44,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:44,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:25:44,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:44,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:44,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:44,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:44,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:44,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:44,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:44,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:44,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 15:25:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:44,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:44,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:44,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:25:44,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:44,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:44,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:44,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:44,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:44,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:44,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:25:44,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:44,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:25:44,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1105418506] [2020-10-28 15:25:44,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:25:44,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-28 15:25:44,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421791941] [2020-10-28 15:25:44,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-28 15:25:44,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:25:44,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-28 15:25:44,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=505, Unknown=0, NotChecked=0, Total=600 [2020-10-28 15:25:44,576 INFO L87 Difference]: Start difference. First operand 707 states and 917 transitions. Second operand 25 states. [2020-10-28 15:25:44,736 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-28 15:25:50,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:25:50,114 INFO L93 Difference]: Finished difference Result 730 states and 951 transitions. [2020-10-28 15:25:50,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-28 15:25:50,114 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 120 [2020-10-28 15:25:50,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:25:50,117 INFO L225 Difference]: With dead ends: 730 [2020-10-28 15:25:50,117 INFO L226 Difference]: Without dead ends: 669 [2020-10-28 15:25:50,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=341, Invalid=2209, Unknown=0, NotChecked=0, Total=2550 [2020-10-28 15:25:50,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2020-10-28 15:25:50,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 335. [2020-10-28 15:25:50,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-10-28 15:25:50,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 423 transitions. [2020-10-28 15:25:50,185 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 423 transitions. Word has length 120 [2020-10-28 15:25:50,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:25:50,185 INFO L481 AbstractCegarLoop]: Abstraction has 335 states and 423 transitions. [2020-10-28 15:25:50,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-28 15:25:50,186 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 423 transitions. [2020-10-28 15:25:50,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-28 15:25:50,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:25:50,188 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-10-28 15:25:50,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-28 15:25:50,188 INFO L429 AbstractCegarLoop]: === Iteration 46 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:25:50,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:25:50,189 INFO L82 PathProgramCache]: Analyzing trace with hash 313277234, now seen corresponding path program 1 times [2020-10-28 15:25:50,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:25:50,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967167230] [2020-10-28 15:25:50,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:25:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:50,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:50,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:50,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:50,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:51,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:51,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:51,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-28 15:25:51,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 15:25:51,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1770 [2020-10-28 15:25:51,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:51,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:51,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:25:51,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 191 [2020-10-28 15:25:51,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 15:25:51,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:52,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:25:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:52,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:52,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:52,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:52,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:25:52,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:52,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:52,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:52,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:52,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:52,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:52,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:25:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:52,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:52,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:52,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:52,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:25:52,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:52,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:52,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:52,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:52,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:52,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:52,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:25:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:52,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:52,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:52,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:52,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:52,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:52,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:52,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:52,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:52,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:52,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:52,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-28 15:25:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:52,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:52,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 15:25:52,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:52,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:25:52,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:52,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:52,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:52,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:52,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:52,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:52,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:25:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:52,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:52,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 15:25:52,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:52,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:25:52,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:52,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:52,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:52,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:52,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:52,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:52,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:52,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:52,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:25:52,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:52,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:52,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:52,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:52,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:52,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:52,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:52,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:52,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:52,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:52,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:52,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:52,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:52,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:52,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:52,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:52,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:52,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:52,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:52,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:25:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:52,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:52,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:52,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:52,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:52,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:52,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:52,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:52,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:52,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:52,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:52,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-28 15:25:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:52,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:52,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:52,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:52,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:52,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:52,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:52,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:52,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:52,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:52,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:52,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 15:25:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:52,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:52,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 15:25:52,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 15:25:52,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 534 [2020-10-28 15:25:52,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:52,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:52,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:25:52,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-28 15:25:52,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 15:25:52,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:52,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:52,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:52,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:25:52,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:52,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:52,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:52,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:52,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:52,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:52,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 15:25:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:52,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:52,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 15:25:52,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:52,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:25:52,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:52,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:52,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:52,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:52,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:52,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:52,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:52,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:52,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:25:52,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:52,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:52,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:52,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:52,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:52,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:52,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:52,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:52,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:52,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:52,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:52,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:52,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:52,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:52,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:52,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:52,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:52,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:52,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:52,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:25:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:52,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:52,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:52,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:52,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:52,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:52,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:52,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:52,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:52,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:52,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:52,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-28 15:25:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:52,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:52,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:25:52,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:52,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:52,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:52,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:52,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:52,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:52,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:52,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:52,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 15:25:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:52,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:52,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:53,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:53,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:25:53,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:25:53,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 15:25:53,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:53,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:53,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:25:53,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:53,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 15:25:53,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:53,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:53,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:53,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:53,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:25:53,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:53,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:53,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:53,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:53,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:53,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:53,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:53,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:53,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:53,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:53,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:53,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:53,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:53,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:53,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:53,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:53,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:53,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:53,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:53,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:53,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:25:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:53,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:53,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:53,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:53,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:53,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:53,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:53,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:53,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:53,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:53,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:53,077 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-28 15:25:53,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967167230] [2020-10-28 15:25:53,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:25:53,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-28 15:25:53,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948049999] [2020-10-28 15:25:53,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-28 15:25:53,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:25:53,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-28 15:25:53,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-28 15:25:53,079 INFO L87 Difference]: Start difference. First operand 335 states and 423 transitions. Second operand 15 states. [2020-10-28 15:25:53,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:25:53,923 INFO L93 Difference]: Finished difference Result 373 states and 476 transitions. [2020-10-28 15:25:53,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 15:25:53,924 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 164 [2020-10-28 15:25:53,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:25:53,926 INFO L225 Difference]: With dead ends: 373 [2020-10-28 15:25:53,926 INFO L226 Difference]: Without dead ends: 361 [2020-10-28 15:25:53,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2020-10-28 15:25:53,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2020-10-28 15:25:53,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 337. [2020-10-28 15:25:53,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-10-28 15:25:53,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 425 transitions. [2020-10-28 15:25:53,979 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 425 transitions. Word has length 164 [2020-10-28 15:25:53,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:25:53,979 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 425 transitions. [2020-10-28 15:25:53,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-28 15:25:53,979 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 425 transitions. [2020-10-28 15:25:53,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-28 15:25:53,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:25:53,981 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-10-28 15:25:53,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-28 15:25:53,982 INFO L429 AbstractCegarLoop]: === Iteration 47 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:25:53,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:25:53,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1416344787, now seen corresponding path program 1 times [2020-10-28 15:25:53,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:25:53,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1790040445] [2020-10-28 15:25:53,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:25:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:54,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:54,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:54,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:54,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:54,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:55,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:58,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:58,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-28 15:25:58,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 15:25:58,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4643 [2020-10-28 15:25:58,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:58,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:58,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:25:58,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-28 15:25:58,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 15:25:58,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:58,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:25:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:58,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:58,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:58,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:58,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:58,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:25:58,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:58,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:58,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:58,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:25:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:58,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:58,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:58,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:58,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:58,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:25:58,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:58,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:58,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:58,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:58,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:25:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:58,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:58,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:58,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:58,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:58,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:58,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:58,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:58,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:58,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:58,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:58,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:58,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-28 15:25:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:58,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:58,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:58,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 15:25:58,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:58,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:25:58,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:58,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:58,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:58,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:58,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:58,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 15:25:58,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:25:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:58,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:58,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:58,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 15:25:58,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:58,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:25:58,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:58,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:58,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:58,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:58,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:58,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:58,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:25:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:58,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:58,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:58,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:25:58,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:58,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:25:58,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:58,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:58,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:58,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:58,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:58,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:58,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:25:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:58,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:58,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:58,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:58,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:58,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:58,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:58,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:58,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:58,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:58,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:58,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:58,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:25:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:58,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:58,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:58,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:58,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:58,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:25:58,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:58,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:58,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:58,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:58,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:58,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:58,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-28 15:25:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:58,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:58,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:25:58,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:25:58,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:25:58,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:25:58,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:25:58,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:25:58,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:25:58,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:25:58,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:25:58,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:25:59,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 15:25:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:25:59,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:59,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:59,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:59,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:59,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:25:59,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:00,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:00,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 15:26:00,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 15:26:00,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1388 [2020-10-28 15:26:00,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:00,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:26:00,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-28 15:26:00,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-28 15:26:00,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:00,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:26:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:00,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:00,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:00,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:26:00,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:00,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:00,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:00,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:00,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:00,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 15:26:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:00,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:00,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:00,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 15:26:00,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:00,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:26:00,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:00,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:00,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:00,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:00,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:00,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:00,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:26:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:00,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:00,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:00,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:26:00,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:00,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:00,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:00,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:00,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:00,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:00,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:00,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:00,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:26:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:00,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:00,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:00,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:00,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:00,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:26:00,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:00,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:00,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:00,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:26:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:00,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:00,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:00,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:00,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:00,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:00,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:00,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:00,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:00,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:00,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:00,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:00,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-28 15:26:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:00,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:00,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:00,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:26:00,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:00,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 15:26:00,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:00,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:00,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:26:00,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:00,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 15:26:00,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:00,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 15:26:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:00,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:00,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:00,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:26:00,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:00,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 15:26:00,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:00,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:00,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:26:00,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:00,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 15:26:00,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:00,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:26:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:00,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:00,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:00,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:26:00,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:00,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:00,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:00,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:00,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:00,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:00,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:26:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:00,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:00,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:00,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:00,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:00,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:26:00,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:00,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:00,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:00,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:00,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:00,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:00,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:26:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:00,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:00,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:00,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:00,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:00,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:00,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:00,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:00,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:00,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:00,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:00,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:00,558 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-28 15:26:00,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1790040445] [2020-10-28 15:26:00,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:26:00,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 15:26:00,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723788619] [2020-10-28 15:26:00,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 15:26:00,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:26:00,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 15:26:00,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2020-10-28 15:26:00,560 INFO L87 Difference]: Start difference. First operand 337 states and 425 transitions. Second operand 12 states. [2020-10-28 15:26:01,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:26:01,124 INFO L93 Difference]: Finished difference Result 355 states and 449 transitions. [2020-10-28 15:26:01,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 15:26:01,125 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 164 [2020-10-28 15:26:01,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:26:01,126 INFO L225 Difference]: With dead ends: 355 [2020-10-28 15:26:01,126 INFO L226 Difference]: Without dead ends: 343 [2020-10-28 15:26:01,127 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2020-10-28 15:26:01,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-10-28 15:26:01,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 337. [2020-10-28 15:26:01,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-10-28 15:26:01,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 423 transitions. [2020-10-28 15:26:01,171 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 423 transitions. Word has length 164 [2020-10-28 15:26:01,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:26:01,171 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 423 transitions. [2020-10-28 15:26:01,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 15:26:01,171 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 423 transitions. [2020-10-28 15:26:01,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-28 15:26:01,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:26:01,174 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 15:26:01,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-28 15:26:01,174 INFO L429 AbstractCegarLoop]: === Iteration 48 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:26:01,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:26:01,174 INFO L82 PathProgramCache]: Analyzing trace with hash 921329811, now seen corresponding path program 1 times [2020-10-28 15:26:01,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:26:01,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886531046] [2020-10-28 15:26:01,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:26:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:01,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:01,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:01,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:02,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:02,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-10-28 15:26:02,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:26:02,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1496 [2020-10-28 15:26:02,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:02,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:02,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:26:02,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-28 15:26:02,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 15:26:02,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:02,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:26:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:02,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:02,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:02,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:02,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:02,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:26:02,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:02,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:02,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:02,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:02,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:02,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:02,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:26:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:02,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:02,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:02,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:02,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:02,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:02,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:02,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:02,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:02,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:02,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:02,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:02,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:26:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:02,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:02,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:02,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:02,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:02,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:26:02,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:02,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:02,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:02,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:02,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:02,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:02,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-28 15:26:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:02,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:02,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:02,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 15:26:02,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:02,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 15:26:02,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:02,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:02,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:02,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:02,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:02,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:02,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:26:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:02,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:02,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:02,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 15:26:02,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:02,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:26:02,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:02,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:02,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:02,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:02,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:02,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:03,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:26:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:03,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:03,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:03,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:26:03,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:03,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:03,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:03,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:03,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:03,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:03,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:03,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:03,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:26:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:03,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:03,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:03,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:03,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:03,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:03,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:03,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:03,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:03,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:26:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:03,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:03,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:03,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:03,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:03,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:26:03,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:03,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:03,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:03,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:03,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:03,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:03,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-28 15:26:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:03,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:03,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:03,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:03,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:03,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:03,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:03,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:03,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:03,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:03,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:03,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:03,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 15:26:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:03,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:03,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:03,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:03,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:03,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-28 15:26:03,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:26:03,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 750 [2020-10-28 15:26:03,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:03,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:03,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:26:03,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-28 15:26:03,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 15:26:03,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:03,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:26:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:03,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:03,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:03,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:26:03,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:03,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:03,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:03,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:03,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:03,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:03,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:03,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:03,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 15:26:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:03,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:03,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:03,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 15:26:03,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:03,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 15:26:03,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:03,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:03,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:26:03,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:03,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 15:26:03,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:03,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:26:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:03,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:03,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:03,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:26:03,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:03,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:03,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:03,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:03,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:03,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:03,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:03,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:03,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:26:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:03,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:03,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:03,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:03,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:03,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:03,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:03,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:03,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:03,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:03,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:03,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:03,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:26:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:03,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:03,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:03,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:03,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:03,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:03,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:03,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:03,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:03,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:03,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:03,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:03,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-28 15:26:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:03,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:03,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:03,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:26:03,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:03,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:03,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:03,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:03,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:03,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 15:26:03,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:03,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:03,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 15:26:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:03,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:03,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:03,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:26:03,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:03,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:26:03,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:03,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:03,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:03,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-28 15:26:03,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:03,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:03,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:26:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:03,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:03,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:03,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:26:03,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:03,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:26:03,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:03,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:03,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:03,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:03,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:03,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:03,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:26:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:03,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:03,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:03,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:03,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:03,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:26:03,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:03,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:03,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:03,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:03,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:03,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:03,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:26:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:03,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:03,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:03,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:03,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:03,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:03,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:03,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:03,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:03,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:03,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:03,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:03,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 15:26:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:03,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:03,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:03,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:26:03,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:03,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:26:03,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:03,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:03,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:03,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 15:26:03,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:03,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:04,009 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-28 15:26:04,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886531046] [2020-10-28 15:26:04,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:26:04,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-28 15:26:04,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670427274] [2020-10-28 15:26:04,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-28 15:26:04,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:26:04,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-28 15:26:04,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-28 15:26:04,011 INFO L87 Difference]: Start difference. First operand 337 states and 423 transitions. Second operand 15 states. [2020-10-28 15:26:04,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:26:04,943 INFO L93 Difference]: Finished difference Result 627 states and 807 transitions. [2020-10-28 15:26:04,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 15:26:04,944 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 172 [2020-10-28 15:26:04,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:26:04,945 INFO L225 Difference]: With dead ends: 627 [2020-10-28 15:26:04,945 INFO L226 Difference]: Without dead ends: 373 [2020-10-28 15:26:04,946 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2020-10-28 15:26:04,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2020-10-28 15:26:04,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 357. [2020-10-28 15:26:04,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2020-10-28 15:26:04,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 452 transitions. [2020-10-28 15:26:04,994 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 452 transitions. Word has length 172 [2020-10-28 15:26:04,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:26:04,994 INFO L481 AbstractCegarLoop]: Abstraction has 357 states and 452 transitions. [2020-10-28 15:26:04,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-28 15:26:04,994 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 452 transitions. [2020-10-28 15:26:04,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-28 15:26:04,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:26:04,996 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 15:26:04,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-28 15:26:04,996 INFO L429 AbstractCegarLoop]: === Iteration 49 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:26:04,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:26:04,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1896612691, now seen corresponding path program 1 times [2020-10-28 15:26:04,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:26:04,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [622640073] [2020-10-28 15:26:04,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:26:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:05,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:05,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:05,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:05,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-28 15:26:05,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:26:05,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 708 [2020-10-28 15:26:05,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:05,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:05,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:26:05,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-10-28 15:26:05,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 15:26:05,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:05,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:26:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:05,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:05,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:05,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:05,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:05,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:26:05,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:05,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:05,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:05,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:05,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:05,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:05,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:26:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:05,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:05,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:05,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:05,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:05,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:05,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:05,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:05,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:05,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:05,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:05,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:05,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:26:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:05,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:05,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:05,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:05,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:05,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:26:05,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:05,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:05,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:05,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:05,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:05,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:05,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-28 15:26:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:05,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:05,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:05,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 15:26:05,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:05,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 15:26:05,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:05,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:05,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:05,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:05,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:05,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:06,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:26:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:06,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:06,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 15:26:06,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:06,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:26:06,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:06,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:06,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:06,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:06,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:06,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:26:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:06,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:06,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:26:06,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:06,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:06,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:06,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:06,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:06,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:06,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:06,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:06,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:26:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:06,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:06,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:06,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:06,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:26:06,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:06,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:06,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:06,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:06,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:06,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:06,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:26:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:06,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:06,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:06,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:06,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:06,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:06,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:06,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:06,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:06,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:06,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:06,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-28 15:26:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:06,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:06,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:06,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:06,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:06,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:06,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:06,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:06,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:06,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:06,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:06,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 15:26:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:06,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:06,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 15:26:06,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:26:06,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-28 15:26:06,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:06,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:06,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:26:06,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-28 15:26:06,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 15:26:06,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:06,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:26:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:06,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:06,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:26:06,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:06,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:06,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:06,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:06,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:06,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:06,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:06,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:06,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 15:26:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:06,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:06,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:26:06,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:06,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:26:06,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:06,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:06,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:06,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:06,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:06,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:26:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:06,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:06,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:26:06,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:06,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:06,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:06,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:06,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:06,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:06,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:06,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:06,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:26:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:06,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:06,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:06,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:06,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:26:06,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:06,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:06,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:06,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:06,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:06,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:06,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:26:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:06,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:06,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:06,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:06,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:06,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:06,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:06,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:06,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:06,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:06,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:06,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 15:26:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:06,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:06,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:26:06,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:06,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:26:06,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:06,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:06,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:06,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:06,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:06,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:06,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 15:26:06,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:06,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:06,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:26:06,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:26:06,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-28 15:26:06,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:06,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:06,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:26:06,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:06,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 15:26:06,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:06,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:26:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:06,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:06,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:26:06,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:06,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:06,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:06,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:06,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:06,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:06,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:06,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:06,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:26:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:06,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:06,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:06,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:06,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:06,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:06,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:06,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:06,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:06,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:06,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:06,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:26:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:06,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:06,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:06,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:06,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:06,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:06,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:06,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:06,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:06,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:06,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:06,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 15:26:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:06,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:06,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:06,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:26:06,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:06,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:06,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:06,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:06,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:06,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 15:26:06,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:06,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:06,613 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-10-28 15:26:06,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [622640073] [2020-10-28 15:26:06,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:26:06,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-28 15:26:06,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997267343] [2020-10-28 15:26:06,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-28 15:26:06,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:26:06,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-28 15:26:06,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-28 15:26:06,614 INFO L87 Difference]: Start difference. First operand 357 states and 452 transitions. Second operand 15 states. [2020-10-28 15:26:07,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:26:07,562 INFO L93 Difference]: Finished difference Result 645 states and 819 transitions. [2020-10-28 15:26:07,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 15:26:07,562 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 173 [2020-10-28 15:26:07,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:26:07,565 INFO L225 Difference]: With dead ends: 645 [2020-10-28 15:26:07,565 INFO L226 Difference]: Without dead ends: 422 [2020-10-28 15:26:07,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2020-10-28 15:26:07,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-10-28 15:26:07,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 339. [2020-10-28 15:26:07,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-10-28 15:26:07,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 420 transitions. [2020-10-28 15:26:07,621 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 420 transitions. Word has length 173 [2020-10-28 15:26:07,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:26:07,622 INFO L481 AbstractCegarLoop]: Abstraction has 339 states and 420 transitions. [2020-10-28 15:26:07,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-28 15:26:07,622 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 420 transitions. [2020-10-28 15:26:07,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-28 15:26:07,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:26:07,624 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-10-28 15:26:07,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-28 15:26:07,625 INFO L429 AbstractCegarLoop]: === Iteration 50 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:26:07,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:26:07,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1823798170, now seen corresponding path program 1 times [2020-10-28 15:26:07,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:26:07,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256243209] [2020-10-28 15:26:07,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:26:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:07,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:07,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:08,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:09,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:09,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:10,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:10,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-28 15:26:10,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 15:26:10,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2343 [2020-10-28 15:26:10,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:10,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 15:26:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 191 [2020-10-28 15:26:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 15:26:10,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:10,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:26:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:10,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:10,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:10,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:10,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:10,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:26:10,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:10,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:10,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:10,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:10,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:10,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:10,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 15:26:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:10,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:10,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:10,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:10,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:10,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:10,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:10,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:10,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:10,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:10,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:10,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:10,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:26:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:10,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:10,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:10,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:10,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:10,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:26:10,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:10,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:10,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:10,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:10,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-28 15:26:10,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:10,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:10,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:10,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 15:26:10,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:10,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:26:10,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:10,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:10,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:10,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:10,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:10,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:10,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 15:26:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:10,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:10,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:10,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 15:26:10,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:10,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:26:10,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:10,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:10,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:10,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:26:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:10,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:10,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:10,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:26:10,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:10,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:10,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:10,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:10,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:10,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:10,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:10,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:10,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:26:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:10,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:10,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:10,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:10,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:10,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:26:10,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:10,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:10,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:10,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:10,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:10,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:10,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:26:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:10,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:10,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:10,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:10,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:10,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:10,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:10,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:10,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:10,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:10,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:10,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:10,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-28 15:26:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:10,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:10,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:10,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:10,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:10,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:10,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:10,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:10,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:10,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:10,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:10,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:10,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 15:26:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:10,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:10,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:10,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:11,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:11,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:11,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:11,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-28 15:26:11,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 15:26:11,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1036 [2020-10-28 15:26:11,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:11,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:11,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 15:26:11,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-28 15:26:11,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 15:26:11,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:11,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:26:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:11,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:11,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:11,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:26:11,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:11,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:11,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:11,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:11,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:11,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:11,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:11,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:11,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 15:26:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:11,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:11,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:11,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:26:11,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:11,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 15:26:11,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:11,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:11,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:11,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:11,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:11,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:11,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:26:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:11,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:11,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:11,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:26:11,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:11,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:26:11,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:11,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:11,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:11,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:11,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:11,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:11,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:26:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:11,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:11,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:11,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:11,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:11,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:11,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:11,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:11,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:11,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:11,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:11,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:11,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:26:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:11,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:11,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:11,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:11,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:11,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:11,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:11,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:11,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:11,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:11,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:11,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:11,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 15:26:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:11,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:11,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:11,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:26:11,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:11,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:11,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:11,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:11,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:11,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:11,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:11,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:11,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 15:26:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:11,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:11,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:11,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 15:26:11,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:11,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 15:26:11,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:11,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:11,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:26:11,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:11,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 15:26:11,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:11,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:26:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:11,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:11,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:11,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:26:11,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:11,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:26:11,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:11,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:11,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:11,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:11,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:11,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:11,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:26:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:11,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:11,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:11,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:11,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:11,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:11,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:11,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:11,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:11,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:11,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:11,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:11,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:26:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:11,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:11,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:11,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:11,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:11,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:11,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:11,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:11,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:11,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:11,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:11,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:11,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 15:26:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:11,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:11,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:11,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 15:26:11,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:11,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 15:26:11,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:11,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:11,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:11,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 15:26:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:11,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:11,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-28 15:26:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:11,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:11,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:11,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 15:26:11,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:11,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:26:11,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:11,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-28 15:26:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:11,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:11,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-28 15:26:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:11,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:11,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:11,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 15:26:11,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:11,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:26:11,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:11,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:11,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:11,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:11,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:11,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:11,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 15:26:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:11,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:11,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:11,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:11,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:11,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 15:26:11,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:11,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:11,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:11,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 15:26:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:26:11,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:26:11,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:26:11,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:26:11,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:26:11,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 15:26:11,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:26:11,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:26:11,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:26:11,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:26:11,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:26:11,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:26:11,669 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2020-10-28 15:26:11,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1256243209] [2020-10-28 15:26:11,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:26:11,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-28 15:26:11,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179859975] [2020-10-28 15:26:11,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-28 15:26:11,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:26:11,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-28 15:26:11,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2020-10-28 15:26:11,671 INFO L87 Difference]: Start difference. First operand 339 states and 420 transitions. Second operand 16 states. [2020-10-28 15:26:12,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:26:12,925 INFO L93 Difference]: Finished difference Result 606 states and 753 transitions. [2020-10-28 15:26:12,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 15:26:12,926 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 205 [2020-10-28 15:26:12,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:26:12,928 INFO L225 Difference]: With dead ends: 606 [2020-10-28 15:26:12,928 INFO L226 Difference]: Without dead ends: 389 [2020-10-28 15:26:12,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2020-10-28 15:26:12,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states.