/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 SingleStatement --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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:14:07,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:14:07,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:14:07,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:14:07,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:14:07,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:14:07,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:14:07,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:14:07,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:14:07,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:14:07,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:14:07,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:14:07,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:14:07,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:14:07,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:14:07,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:14:07,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:14:07,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:14:07,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:14:07,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:14:07,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:14:07,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:14:07,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:14:07,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:14:07,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:14:07,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:14:07,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:14:07,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:14:07,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:14:07,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:14:07,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:14:07,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:14:07,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:14:07,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:14:07,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:14:07,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:14:07,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:14:07,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:14:07,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:14:07,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:14:07,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:14:07,381 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 [2020-09-25 03:14:07,431 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:14:07,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:14:07,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:14:07,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:14:07,433 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:14:07,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:14:07,434 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:14:07,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:14:07,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:14:07,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:14:07,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:14:07,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:14:07,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:14:07,436 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:14:07,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:14:07,436 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:14:07,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:14:07,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:14:07,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:14:07,437 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:14:07,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:14:07,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:14:07,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:14:07,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:14:07,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:14:07,438 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:14:07,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:14:07,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:14:07,439 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:14:07,439 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> SingleStatement 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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=true; [2020-09-25 03:14:07,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:14:07,885 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:14:07,891 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:14:07,894 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:14:07,894 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:14:07,895 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-25 03:14:07,986 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cb6b15419/754c9b4f7bb244fbba0f1e461636c64c/FLAG2a2ed4cd7 [2020-09-25 03:14:08,608 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:14:08,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.i [2020-09-25 03:14:08,621 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cb6b15419/754c9b4f7bb244fbba0f1e461636c64c/FLAG2a2ed4cd7 [2020-09-25 03:14:08,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cb6b15419/754c9b4f7bb244fbba0f1e461636c64c [2020-09-25 03:14:08,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:14:08,861 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:14:08,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:14:08,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:14:08,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:14:08,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:14:08" (1/1) ... [2020-09-25 03:14:08,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:14:08, skipping insertion in model container [2020-09-25 03:14:08,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:14:08" (1/1) ... [2020-09-25 03:14:08,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:14:08,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:14:09,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:14:09,430 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:14:09,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:14:09,565 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:14:09,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:14:09 WrapperNode [2020-09-25 03:14:09,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:14:09,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:14:09,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:14:09,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:14:09,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:14:09" (1/1) ... [2020-09-25 03:14:09,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:14:09" (1/1) ... [2020-09-25 03:14:09,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:14:09" (1/1) ... [2020-09-25 03:14:09,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:14:09" (1/1) ... [2020-09-25 03:14:09,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:14:09" (1/1) ... [2020-09-25 03:14:09,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:14:09" (1/1) ... [2020-09-25 03:14:09,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:14:09" (1/1) ... [2020-09-25 03:14:09,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:14:09,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:14:09,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:14:09,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:14:09,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:14:09" (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 [2020-09-25 03:14:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:14:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:14:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 03:14:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-25 03:14:09,732 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-25 03:14:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-25 03:14:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-25 03:14:09,733 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:14:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:14:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 03:14:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-25 03:14:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-25 03:14:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-25 03:14:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-25 03:14:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-25 03:14:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-25 03:14:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-25 03:14:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-25 03:14:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-25 03:14:09,738 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-25 03:14:09,738 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-25 03:14:09,738 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-25 03:14:09,739 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-25 03:14:09,739 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-25 03:14:09,739 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-25 03:14:09,740 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-25 03:14:09,740 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-25 03:14:09,740 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-25 03:14:09,740 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-25 03:14:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-25 03:14:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-25 03:14:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-25 03:14:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-25 03:14:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-25 03:14:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-25 03:14:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-25 03:14:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-25 03:14:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-25 03:14:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 03:14:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-25 03:14:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-25 03:14:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-25 03:14:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-25 03:14:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-25 03:14:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-25 03:14:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-25 03:14:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-25 03:14:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-25 03:14:09,743 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 03:14:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-25 03:14:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-25 03:14:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-25 03:14:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-25 03:14:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-25 03:14:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-25 03:14:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-25 03:14:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-25 03:14:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-25 03:14:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-25 03:14:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-25 03:14:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-25 03:14:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-25 03:14:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-25 03:14:09,746 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-25 03:14:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-25 03:14:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-25 03:14:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-25 03:14:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-25 03:14:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-25 03:14:09,747 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-25 03:14:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-25 03:14:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-25 03:14:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-25 03:14:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-25 03:14:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-25 03:14:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-25 03:14:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-25 03:14:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-25 03:14:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-25 03:14:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-25 03:14:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-25 03:14:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-25 03:14:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-25 03:14:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-25 03:14:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-25 03:14:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-25 03:14:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-25 03:14:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-25 03:14:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-25 03:14:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-25 03:14:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-25 03:14:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-25 03:14:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-25 03:14:09,753 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-25 03:14:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-25 03:14:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-25 03:14:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-25 03:14:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-25 03:14:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-25 03:14:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-25 03:14:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-25 03:14:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-25 03:14:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-25 03:14:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-25 03:14:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-25 03:14:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-25 03:14:09,755 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-25 03:14:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-25 03:14:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-25 03:14:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-25 03:14:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-25 03:14:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 03:14:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 03:14:09,756 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 03:14:09,757 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 03:14:09,757 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 03:14:09,757 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-25 03:14:09,758 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 03:14:09,758 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-25 03:14:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-25 03:14:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-25 03:14:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-25 03:14:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-25 03:14:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-25 03:14:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-25 03:14:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-25 03:14:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-25 03:14:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-25 03:14:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-25 03:14:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:14:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-25 03:14:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-25 03:14:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-25 03:14:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-25 03:14:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:14:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:14:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 03:14:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 03:14:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:14:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 03:14:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 03:14:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:14:10,312 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:14:10,312 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:14:10,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:14:10 BoogieIcfgContainer [2020-09-25 03:14:10,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:14:10,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:14:10,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:14:10,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:14:10,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:14:08" (1/3) ... [2020-09-25 03:14:10,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c12041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:14:10, skipping insertion in model container [2020-09-25 03:14:10,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:14:09" (2/3) ... [2020-09-25 03:14:10,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c12041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:14:10, skipping insertion in model container [2020-09-25 03:14:10,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:14:10" (3/3) ... [2020-09-25 03:14:10,326 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.i [2020-09-25 03:14:10,337 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:14:10,347 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:14:10,368 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:14:10,394 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:14:10,394 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:14:10,394 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:14:10,394 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:14:10,394 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:14:10,394 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:14:10,395 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:14:10,395 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:14:10,419 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2020-09-25 03:14:10,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 03:14:10,427 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:14:10,428 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] [2020-09-25 03:14:10,428 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:14:10,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:14:10,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1653885127, now seen corresponding path program 1 times [2020-09-25 03:14:10,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:14:10,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1555203338] [2020-09-25 03:14:10,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:14:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:10,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:10,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:10,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:14:10,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:10,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-09-25 03:14:11,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:11,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:14:11,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 03:14:11,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:14:11,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:14:11,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:14:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:11,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:11,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:11,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 03:14:11,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:11,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 03:14:11,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:11,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:14:11,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:11,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:14:11,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:11,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:14:11,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1555203338] [2020-09-25 03:14:11,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:14:11,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 03:14:11,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001022152] [2020-09-25 03:14:11,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:14:11,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:14:11,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:14:11,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:14:11,199 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 7 states. [2020-09-25 03:14:11,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:14:11,630 INFO L93 Difference]: Finished difference Result 126 states and 151 transitions. [2020-09-25 03:14:11,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 03:14:11,632 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-25 03:14:11,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:14:11,648 INFO L225 Difference]: With dead ends: 126 [2020-09-25 03:14:11,648 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 03:14:11,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-09-25 03:14:11,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 03:14:11,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 62. [2020-09-25 03:14:11,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 03:14:11,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2020-09-25 03:14:11,717 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 21 [2020-09-25 03:14:11,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:14:11,717 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2020-09-25 03:14:11,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:14:11,718 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2020-09-25 03:14:11,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-25 03:14:11,721 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:14:11,721 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 03:14:11,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:14:11,722 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:14:11,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:14:11,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1154270079, now seen corresponding path program 1 times [2020-09-25 03:14:11,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:14:11,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [414279290] [2020-09-25 03:14:11,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:14:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:11,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:11,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:12,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:15,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:15,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-25 03:14:15,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:14:15,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4225 [2020-09-25 03:14:15,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:15,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:14:15,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 03:14:15,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 03:14:15,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:14:16,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:14:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:16,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:16,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:16,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 03:14:16,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:16,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 03:14:16,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:14:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:14:16,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:14:16,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 03:14:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:16,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:16,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:16,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:14:16,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:16,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 03:14:16,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:16,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:14:16,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:16,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:14:16,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:16,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:14:16,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:16,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:16,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:16,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 03:14:16,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:16,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:14:16,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:16,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:14:16,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:16,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:14:16,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:16,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 03:14:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:16,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:16,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:16,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:14:16,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:16,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 03:14:16,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:16,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:14:16,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:16,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:14:16,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:16,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:14:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:16,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:16,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:16,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 03:14:16,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:16,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:14:16,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:16,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:14:16,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:16,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:14:16,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:16,443 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 03:14:16,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [414279290] [2020-09-25 03:14:16,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:14:16,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 03:14:16,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196827945] [2020-09-25 03:14:16,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:14:16,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:14:16,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:14:16,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:14:16,447 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand 8 states. [2020-09-25 03:14:17,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:14:17,146 INFO L93 Difference]: Finished difference Result 101 states and 110 transitions. [2020-09-25 03:14:17,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:14:17,147 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-09-25 03:14:17,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:14:17,149 INFO L225 Difference]: With dead ends: 101 [2020-09-25 03:14:17,149 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 03:14:17,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 03:14:17,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 03:14:17,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 81. [2020-09-25 03:14:17,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 03:14:17,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-09-25 03:14:17,166 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 61 [2020-09-25 03:14:17,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:14:17,167 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-09-25 03:14:17,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:14:17,167 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-09-25 03:14:17,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 03:14:17,169 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:14:17,170 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 03:14:17,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:14:17,170 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:14:17,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:14:17,171 INFO L82 PathProgramCache]: Analyzing trace with hash -497938342, now seen corresponding path program 1 times [2020-09-25 03:14:17,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:14:17,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922041368] [2020-09-25 03:14:17,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:14:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:17,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:17,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:17,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:18,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:22,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:22,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 03:14:22,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:14:22,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 03:14:22,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:22,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:14:22,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 03:14:22,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 03:14:22,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:22,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:14:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:22,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:22,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:22,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 03:14:22,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:22,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 03:14:22,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:22,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:14:22,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:22,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:14:22,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:22,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 03:14:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:22,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:22,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:22,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:14:22,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:22,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 03:14:22,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:22,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:14:22,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:22,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:14:22,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:14:22,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:14:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:22,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:22,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:22,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 03:14:22,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:22,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:14:22,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:22,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:14:22,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:22,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:14:22,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:22,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 03:14:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:22,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:22,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:22,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:14:22,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:22,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 03:14:22,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:22,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:14:22,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:22,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:14:22,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:22,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:14:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:22,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:22,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:22,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 03:14:22,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:22,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 03:14:22,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:22,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:14:22,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:22,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:14:22,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:14:22,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 03:14:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:22,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:22,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:22,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 03:14:22,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:22,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 03:14:22,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:22,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:14:22,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:14:22,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 03:14:22,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:14:22,647 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 03:14:22,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [922041368] [2020-09-25 03:14:22,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:14:22,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 03:14:22,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620736253] [2020-09-25 03:14:22,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 03:14:22,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:14:22,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 03:14:22,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:14:22,650 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 9 states. [2020-09-25 03:14:23,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:14:23,229 INFO L93 Difference]: Finished difference Result 96 states and 103 transitions. [2020-09-25 03:14:23,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:14:23,231 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-25 03:14:23,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:14:23,234 INFO L225 Difference]: With dead ends: 96 [2020-09-25 03:14:23,236 INFO L226 Difference]: Without dead ends: 91 [2020-09-25 03:14:23,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-25 03:14:23,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-25 03:14:23,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 84. [2020-09-25 03:14:23,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-09-25 03:14:23,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2020-09-25 03:14:23,264 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 70 [2020-09-25 03:14:23,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:14:23,267 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2020-09-25 03:14:23,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 03:14:23,268 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2020-09-25 03:14:23,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 03:14:23,269 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:14:23,270 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 03:14:23,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:14:23,270 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:14:23,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:14:23,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1150537932, now seen corresponding path program 1 times [2020-09-25 03:14:23,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:14:23,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126510575] [2020-09-25 03:14:23,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:14:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:23,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:23,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:23,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:24,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:27,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:27,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 03:14:27,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:14:27,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3797 [2020-09-25 03:14:27,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:14:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 03:14:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:14:27,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:27,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:14:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:27,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:27,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:27,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 03:14:27,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:27,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 03:14:27,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:27,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:14:27,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:27,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:14:27,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:27,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 03:14:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:27,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:27,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:27,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:14:27,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:27,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 03:14:27,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:27,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:14:27,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:27,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:14:27,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:27,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:14:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:27,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:27,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:27,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 03:14:27,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:27,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 03:14:27,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:27,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:14:27,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:27,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:14:27,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:27,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 03:14:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:27,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:27,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:27,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:14:27,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:27,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 03:14:27,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:27,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:14:27,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:27,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:14:27,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:27,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:14:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:27,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:27,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:27,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 03:14:27,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:27,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:14:27,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:27,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:14:27,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:27,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:14:27,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:27,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 03:14:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:27,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:27,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:27,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 03:14:27,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:27,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 03:14:27,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:27,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:14:27,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:14:27,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 03:14:27,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:27,600 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 03:14:27,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126510575] [2020-09-25 03:14:27,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:14:27,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 03:14:27,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895148356] [2020-09-25 03:14:27,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 03:14:27,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:14:27,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 03:14:27,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-09-25 03:14:27,603 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand 16 states. [2020-09-25 03:14:29,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:14:29,029 INFO L93 Difference]: Finished difference Result 149 states and 165 transitions. [2020-09-25 03:14:29,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 03:14:29,030 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 71 [2020-09-25 03:14:29,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:14:29,033 INFO L225 Difference]: With dead ends: 149 [2020-09-25 03:14:29,034 INFO L226 Difference]: Without dead ends: 99 [2020-09-25 03:14:29,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 03:14:29,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-09-25 03:14:29,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 90. [2020-09-25 03:14:29,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-25 03:14:29,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 97 transitions. [2020-09-25 03:14:29,063 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 97 transitions. Word has length 71 [2020-09-25 03:14:29,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:14:29,064 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 97 transitions. [2020-09-25 03:14:29,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 03:14:29,069 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 97 transitions. [2020-09-25 03:14:29,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 03:14:29,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:14:29,070 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 03:14:29,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:14:29,071 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:14:29,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:14:29,071 INFO L82 PathProgramCache]: Analyzing trace with hash 2039706158, now seen corresponding path program 1 times [2020-09-25 03:14:29,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:14:29,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1078498777] [2020-09-25 03:14:29,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:14:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:29,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:29,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:29,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 03:14:29,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:29,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 872 [2020-09-25 03:14:29,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:29,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 03:14:29,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 03:14:29,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 03:14:29,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:30,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:14:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:30,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:30,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:30,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 03:14:30,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:30,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 03:14:30,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:30,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:14:30,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:30,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:14:30,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:30,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 03:14:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:30,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:30,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:30,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:14:30,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:30,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 03:14:30,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:30,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:14:30,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:30,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 03:14:30,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:30,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:14:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:30,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:30,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:30,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 03:14:30,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:30,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 03:14:30,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:30,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:14:30,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:30,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:14:30,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:30,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 03:14:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:30,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:30,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:30,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:14:30,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:30,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 03:14:30,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:30,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:14:30,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:14:30,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:14:30,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:14:30,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:14:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:30,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:30,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:30,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 03:14:30,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:30,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 03:14:30,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:30,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:14:30,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:14:30,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:14:30,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:14:30,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 03:14:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:30,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:30,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:30,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 03:14:30,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:30,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 03:14:30,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:30,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:14:30,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:30,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:14:30,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:14:30,703 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 03:14:30,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1078498777] [2020-09-25 03:14:30,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:14:30,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 03:14:30,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387186712] [2020-09-25 03:14:30,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 03:14:30,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:14:30,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 03:14:30,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-25 03:14:30,706 INFO L87 Difference]: Start difference. First operand 90 states and 97 transitions. Second operand 23 states. [2020-09-25 03:14:32,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:14:32,467 INFO L93 Difference]: Finished difference Result 114 states and 130 transitions. [2020-09-25 03:14:32,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 03:14:32,468 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-25 03:14:32,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:14:32,470 INFO L225 Difference]: With dead ends: 114 [2020-09-25 03:14:32,470 INFO L226 Difference]: Without dead ends: 111 [2020-09-25 03:14:32,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=188, Invalid=1618, Unknown=0, NotChecked=0, Total=1806 [2020-09-25 03:14:32,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-09-25 03:14:32,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 103. [2020-09-25 03:14:32,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-09-25 03:14:32,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 114 transitions. [2020-09-25 03:14:32,486 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 114 transitions. Word has length 71 [2020-09-25 03:14:32,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:14:32,487 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 114 transitions. [2020-09-25 03:14:32,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 03:14:32,487 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 114 transitions. [2020-09-25 03:14:32,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 03:14:32,488 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:14:32,489 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 03:14:32,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:14:32,489 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:14:32,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:14:32,489 INFO L82 PathProgramCache]: Analyzing trace with hash -173985679, now seen corresponding path program 1 times [2020-09-25 03:14:32,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:14:32,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060593715] [2020-09-25 03:14:32,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:14:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:32,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:32,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:33,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:34,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:34,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 03:14:34,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:14:34,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2358 [2020-09-25 03:14:34,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:34,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 03:14:34,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 03:14:34,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 03:14:34,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:14:35,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:14:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:35,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:35,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:35,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 03:14:35,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:35,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 03:14:35,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:14:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:14:35,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:14:35,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 03:14:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:35,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:35,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:35,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:14:35,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:35,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 03:14:35,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:35,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:14:35,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:14:35,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:14:35,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:35,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:14:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:35,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:35,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:35,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 03:14:35,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:35,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 03:14:35,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:35,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:14:35,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:14:35,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:14:35,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:14:35,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 03:14:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:35,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:35,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:35,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:14:35,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:35,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 03:14:35,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:35,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:14:35,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:35,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:14:35,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:14:35,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:14:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:35,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:35,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:35,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 03:14:35,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:35,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 03:14:35,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:35,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:14:35,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:35,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:14:35,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:14:35,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 03:14:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:35,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:35,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:35,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 03:14:35,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:35,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 03:14:35,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:35,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:14:35,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:35,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:14:35,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:14:35,721 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 03:14:35,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1060593715] [2020-09-25 03:14:35,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:14:35,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-25 03:14:35,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640107021] [2020-09-25 03:14:35,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-25 03:14:35,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:14:35,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-25 03:14:35,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=503, Unknown=0, NotChecked=0, Total=552 [2020-09-25 03:14:35,725 INFO L87 Difference]: Start difference. First operand 103 states and 114 transitions. Second operand 24 states. [2020-09-25 03:14:37,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:14:37,732 INFO L93 Difference]: Finished difference Result 128 states and 146 transitions. [2020-09-25 03:14:37,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-25 03:14:37,732 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 71 [2020-09-25 03:14:37,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:14:37,736 INFO L225 Difference]: With dead ends: 128 [2020-09-25 03:14:37,736 INFO L226 Difference]: Without dead ends: 120 [2020-09-25 03:14:37,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=257, Invalid=2499, Unknown=0, NotChecked=0, Total=2756 [2020-09-25 03:14:37,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-09-25 03:14:37,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 89. [2020-09-25 03:14:37,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-09-25 03:14:37,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 96 transitions. [2020-09-25 03:14:37,768 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 96 transitions. Word has length 71 [2020-09-25 03:14:37,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:14:37,770 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 96 transitions. [2020-09-25 03:14:37,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-25 03:14:37,771 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 96 transitions. [2020-09-25 03:14:37,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 03:14:37,773 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:14:37,774 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-25 03:14:37,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:14:37,774 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:14:37,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:14:37,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1211655714, now seen corresponding path program 1 times [2020-09-25 03:14:37,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:14:37,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748003244] [2020-09-25 03:14:37,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:14:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:37,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:37,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:38,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:39,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:39,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:42,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:42,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 03:14:42,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:14:42,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 03:14:42,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:42,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 03:14:42,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 03:14:42,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 03:14:42,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:42,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:14:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:42,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:42,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:42,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 03:14:42,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:42,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 03:14:42,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:42,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:14:42,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:42,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:14:42,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:42,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 03:14:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:43,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:43,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:43,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:14:43,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:43,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 03:14:43,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:43,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:14:43,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:14:43,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:14:43,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:43,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:14:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:43,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:43,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:43,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 03:14:43,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:43,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 03:14:43,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:43,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:14:43,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:14:43,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:14:43,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:43,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 03:14:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:43,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:43,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:43,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:14:43,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:43,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 03:14:43,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:43,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:14:43,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:43,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:14:43,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:14:43,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:14:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:43,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:43,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:43,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 03:14:43,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:43,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 03:14:43,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:43,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:14:43,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:43,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:14:43,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:43,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 03:14:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:43,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:43,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:43,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 03:14:43,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:43,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:14:43,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:43,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:14:43,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:43,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 03:14:43,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:43,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 03:14:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:43,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:43,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:43,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 03:14:43,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:43,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 03:14:43,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:43,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:14:43,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:43,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:14:43,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:43,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 03:14:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:43,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:43,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:43,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:14:43,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:43,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 03:14:43,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:43,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:14:43,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:14:43,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:14:43,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:43,676 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 03:14:43,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748003244] [2020-09-25 03:14:43,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:14:43,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-25 03:14:43,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365529519] [2020-09-25 03:14:43,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-25 03:14:43,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:14:43,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-25 03:14:43,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=547, Unknown=0, NotChecked=0, Total=600 [2020-09-25 03:14:43,679 INFO L87 Difference]: Start difference. First operand 89 states and 96 transitions. Second operand 25 states. [2020-09-25 03:14:45,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:14:45,829 INFO L93 Difference]: Finished difference Result 111 states and 126 transitions. [2020-09-25 03:14:45,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-25 03:14:45,830 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 85 [2020-09-25 03:14:45,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:14:45,832 INFO L225 Difference]: With dead ends: 111 [2020-09-25 03:14:45,832 INFO L226 Difference]: Without dead ends: 104 [2020-09-25 03:14:45,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=287, Invalid=2575, Unknown=0, NotChecked=0, Total=2862 [2020-09-25 03:14:45,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-09-25 03:14:45,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 98. [2020-09-25 03:14:45,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-25 03:14:45,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 111 transitions. [2020-09-25 03:14:45,847 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 111 transitions. Word has length 85 [2020-09-25 03:14:45,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:14:45,847 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 111 transitions. [2020-09-25 03:14:45,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-25 03:14:45,848 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 111 transitions. [2020-09-25 03:14:45,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 03:14:45,849 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:14:45,850 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-25 03:14:45,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:14:45,850 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:14:45,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:14:45,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1621974756, now seen corresponding path program 2 times [2020-09-25 03:14:45,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:14:45,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [269792061] [2020-09-25 03:14:45,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:14:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:45,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:45,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:46,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:48,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:49,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:50,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:50,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 03:14:50,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:14:50,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 03:14:50,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:50,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 03:14:50,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 03:14:50,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 03:14:50,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:14:51,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:14:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:51,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:51,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:51,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 03:14:51,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:51,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 03:14:51,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:51,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:14:51,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:51,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:14:51,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:51,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 03:14:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:51,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:51,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:51,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:14:51,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:51,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 03:14:51,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:51,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:14:51,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:51,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:14:51,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:51,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:14:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:51,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:51,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:51,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 03:14:51,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:51,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:14:51,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:51,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:14:51,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:51,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:14:51,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:51,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 03:14:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:51,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:51,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:51,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:14:51,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:51,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 03:14:51,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:51,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:14:51,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:51,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:14:51,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:51,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:14:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:51,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:51,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:51,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 03:14:51,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:51,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 03:14:51,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:14:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:14:51,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:51,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 03:14:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:51,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:51,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:51,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:51,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 03:14:51,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:14:51,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 03:14:51,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:51,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:14:51,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:14:51,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 03:14:51,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:51,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 03:14:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:51,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:51,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:51,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 03:14:51,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:51,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 03:14:51,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:51,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:14:51,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:14:51,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 03:14:51,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:51,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 03:14:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:51,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:51,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:51,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:51,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:14:51,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:14:51,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 03:14:51,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:14:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:14:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:14:51,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:51,533 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-25 03:14:51,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [269792061] [2020-09-25 03:14:51,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:14:51,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 03:14:51,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006354722] [2020-09-25 03:14:51,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 03:14:51,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:14:51,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 03:14:51,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-09-25 03:14:51,536 INFO L87 Difference]: Start difference. First operand 98 states and 111 transitions. Second operand 16 states. [2020-09-25 03:14:52,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:14:52,934 INFO L93 Difference]: Finished difference Result 147 states and 158 transitions. [2020-09-25 03:14:52,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 03:14:52,935 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 85 [2020-09-25 03:14:52,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:14:52,937 INFO L225 Difference]: With dead ends: 147 [2020-09-25 03:14:52,937 INFO L226 Difference]: Without dead ends: 92 [2020-09-25 03:14:52,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=175, Invalid=947, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 03:14:52,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-25 03:14:52,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 79. [2020-09-25 03:14:52,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-25 03:14:52,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-09-25 03:14:52,948 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 85 [2020-09-25 03:14:52,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:14:52,948 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-09-25 03:14:52,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 03:14:52,948 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-09-25 03:14:52,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 03:14:52,950 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:14:52,950 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-25 03:14:52,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 03:14:52,950 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:14:52,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:14:52,951 INFO L82 PathProgramCache]: Analyzing trace with hash 2033290459, now seen corresponding path program 1 times [2020-09-25 03:14:52,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:14:52,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401420905] [2020-09-25 03:14:52,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:14:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:52,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:53,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:55,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:55,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 03:14:55,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:14:55,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2079 [2020-09-25 03:14:55,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:55,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 03:14:55,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 03:14:55,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 03:14:55,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:55,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:14:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:55,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:55,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:55,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 03:14:55,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:55,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:14:55,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:55,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:14:55,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:55,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:14:55,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:55,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 03:14:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:55,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:55,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:55,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:14:55,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:55,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 03:14:55,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:55,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:14:55,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:55,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 03:14:55,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:55,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:14:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:55,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:55,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:55,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 03:14:55,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:55,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 03:14:55,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:55,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:14:55,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:55,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:14:55,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:55,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 03:14:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:55,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:55,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:55,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:14:55,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:55,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 03:14:55,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:55,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:14:55,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:14:55,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:14:55,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:55,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:14:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:55,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:55,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:55,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 03:14:55,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:55,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 03:14:55,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:55,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:14:55,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:14:55,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:14:55,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:14:55,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-25 03:14:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:55,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:55,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:55,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 03:14:55,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:55,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:14:55,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:55,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:14:55,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:55,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 03:14:55,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:55,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-25 03:14:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:55,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:55,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:55,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 03:14:55,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:55,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 03:14:55,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:55,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:14:55,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:14:55,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:14:55,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:55,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-25 03:14:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:55,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:55,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:14:55,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:14:55,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:14:55,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:14:55,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:14:55,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:14:55,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:14:55,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:14:55,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:14:55,766 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 03:14:55,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401420905] [2020-09-25 03:14:55,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:14:55,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-25 03:14:55,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254807190] [2020-09-25 03:14:55,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-25 03:14:55,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:14:55,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-25 03:14:55,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2020-09-25 03:14:55,768 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 24 states. [2020-09-25 03:14:57,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:14:57,137 INFO L93 Difference]: Finished difference Result 89 states and 95 transitions. [2020-09-25 03:14:57,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 03:14:57,137 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 85 [2020-09-25 03:14:57,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:14:57,139 INFO L225 Difference]: With dead ends: 89 [2020-09-25 03:14:57,139 INFO L226 Difference]: Without dead ends: 82 [2020-09-25 03:14:57,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=210, Invalid=1682, Unknown=0, NotChecked=0, Total=1892 [2020-09-25 03:14:57,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-25 03:14:57,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-09-25 03:14:57,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-25 03:14:57,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2020-09-25 03:14:57,150 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 85 [2020-09-25 03:14:57,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:14:57,151 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2020-09-25 03:14:57,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-25 03:14:57,151 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2020-09-25 03:14:57,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 03:14:57,152 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:14:57,152 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-25 03:14:57,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 03:14:57,152 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:14:57,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:14:57,153 INFO L82 PathProgramCache]: Analyzing trace with hash 571953633, now seen corresponding path program 2 times [2020-09-25 03:14:57,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:14:57,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [152429041] [2020-09-25 03:14:57,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:14:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:14:57,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:14:57,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking...