/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 interpolation-heuristic=FIRST --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.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:01:05,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:01:05,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:01:05,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:01:05,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:01:05,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:01:05,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:01:05,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:01:05,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:01:05,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:01:05,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:01:05,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:01:05,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:01:05,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:01:05,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:01:05,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:01:05,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:01:05,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:01:05,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:01:05,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:01:05,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:01:05,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:01:05,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:01:05,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:01:05,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:01:05,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:01:05,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:01:05,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:01:05,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:01:05,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:01:05,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:01:05,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:01:05,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:01:05,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:01:05,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:01:05,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:01:05,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:01:05,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:01:05,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:01:05,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:01:05,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:01:05,485 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 [2020-09-24 16:01:05,510 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:01:05,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:01:05,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:01:05,512 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:01:05,512 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:01:05,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:01:05,513 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:01:05,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:01:05,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:01:05,513 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:01:05,513 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:01:05,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:01:05,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:01:05,514 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:01:05,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:01:05,514 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:01:05,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:01:05,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:01:05,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:01:05,515 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:01:05,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:01:05,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:01:05,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:01:05,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:01:05,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:01:05,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:01:05,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:01:05,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:01:05,517 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:01:05,517 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 16:01:05,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:01:06,023 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:01:06,030 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:01:06,032 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:01:06,033 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:01:06,035 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-24 16:01:06,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89a5fb7d9/49218c67f6ed43ad8e7b2ca0c3b5972f/FLAG3700cf313 [2020-09-24 16:01:06,746 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:01:06,747 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list2.c_1.i [2020-09-24 16:01:06,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89a5fb7d9/49218c67f6ed43ad8e7b2ca0c3b5972f/FLAG3700cf313 [2020-09-24 16:01:07,035 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89a5fb7d9/49218c67f6ed43ad8e7b2ca0c3b5972f [2020-09-24 16:01:07,049 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:01:07,055 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:01:07,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:01:07,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:01:07,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:01:07,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:01:07" (1/1) ... [2020-09-24 16:01:07,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b88dfa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07, skipping insertion in model container [2020-09-24 16:01:07,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:01:07" (1/1) ... [2020-09-24 16:01:07,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:01:07,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:01:07,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:01:07,645 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:01:07,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:01:07,811 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:01:07,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07 WrapperNode [2020-09-24 16:01:07,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:01:07,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:01:07,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:01:07,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:01:07,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07" (1/1) ... [2020-09-24 16:01:07,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07" (1/1) ... [2020-09-24 16:01:07,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07" (1/1) ... [2020-09-24 16:01:07,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07" (1/1) ... [2020-09-24 16:01:07,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07" (1/1) ... [2020-09-24 16:01:07,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07" (1/1) ... [2020-09-24 16:01:07,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07" (1/1) ... [2020-09-24 16:01:07,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:01:07,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:01:07,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:01:07,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:01:07,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07" (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 [2020-09-24 16:01:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:01:07,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:01:07,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-24 16:01:07,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __getMemory [2020-09-24 16:01:07,981 INFO L138 BoogieDeclarations]: Found implementation of procedure my_malloc [2020-09-24 16:01:07,981 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-09-24 16:01:07,982 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-09-24 16:01:07,982 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:01:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:01:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-24 16:01:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-09-24 16:01:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-09-24 16:01:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-09-24 16:01:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-09-24 16:01:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-09-24 16:01:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-09-24 16:01:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-09-24 16:01:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-09-24 16:01:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-09-24 16:01:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-09-24 16:01:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-09-24 16:01:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-09-24 16:01:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-09-24 16:01:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-09-24 16:01:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-09-24 16:01:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-09-24 16:01:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-09-24 16:01:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-09-24 16:01:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-09-24 16:01:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-09-24 16:01:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-09-24 16:01:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-09-24 16:01:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-09-24 16:01:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-09-24 16:01:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-09-24 16:01:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-09-24 16:01:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-09-24 16:01:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-09-24 16:01:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-24 16:01:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-09-24 16:01:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-09-24 16:01:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-09-24 16:01:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-09-24 16:01:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-09-24 16:01:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-09-24 16:01:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-09-24 16:01:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-09-24 16:01:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-09-24 16:01:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:01:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-09-24 16:01:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-09-24 16:01:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-09-24 16:01:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-09-24 16:01:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-24 16:01:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-09-24 16:01:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-09-24 16:01:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-09-24 16:01:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-09-24 16:01:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-09-24 16:01:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-09-24 16:01:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-09-24 16:01:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-09-24 16:01:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-09-24 16:01:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-09-24 16:01:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-09-24 16:01:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-09-24 16:01:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-09-24 16:01:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-09-24 16:01:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-09-24 16:01:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-09-24 16:01:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-09-24 16:01:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-09-24 16:01:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-09-24 16:01:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-09-24 16:01:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-09-24 16:01:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-09-24 16:01:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-09-24 16:01:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-09-24 16:01:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-09-24 16:01:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-09-24 16:01:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-09-24 16:01:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-09-24 16:01:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-09-24 16:01:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-09-24 16:01:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-09-24 16:01:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-09-24 16:01:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-09-24 16:01:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-09-24 16:01:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-09-24 16:01:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-09-24 16:01:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-09-24 16:01:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-09-24 16:01:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-09-24 16:01:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-09-24 16:01:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-09-24 16:01:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-09-24 16:01:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-09-24 16:01:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-09-24 16:01:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-09-24 16:01:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-09-24 16:01:08,003 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-09-24 16:01:08,003 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-09-24 16:01:08,003 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-09-24 16:01:08,003 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-09-24 16:01:08,003 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-09-24 16:01:08,003 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-09-24 16:01:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-09-24 16:01:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-09-24 16:01:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-09-24 16:01:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-09-24 16:01:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-09-24 16:01:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:01:08,004 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 16:01:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-24 16:01:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:01:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-24 16:01:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-09-24 16:01:08,005 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-24 16:01:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-09-24 16:01:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-09-24 16:01:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-09-24 16:01:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-09-24 16:01:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-09-24 16:01:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-09-24 16:01:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-09-24 16:01:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-09-24 16:01:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-09-24 16:01:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-09-24 16:01:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-09-24 16:01:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:01:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure __getMemory [2020-09-24 16:01:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure my_malloc [2020-09-24 16:01:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-09-24 16:01:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-09-24 16:01:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:01:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:01:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:01:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 16:01:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:01:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:01:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:01:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:01:08,583 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:01:08,583 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 16:01:08,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:01:08 BoogieIcfgContainer [2020-09-24 16:01:08,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:01:08,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:01:08,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:01:08,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:01:08,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:01:07" (1/3) ... [2020-09-24 16:01:08,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f5a6a48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:01:08, skipping insertion in model container [2020-09-24 16:01:08,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:01:07" (2/3) ... [2020-09-24 16:01:08,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f5a6a48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:01:08, skipping insertion in model container [2020-09-24 16:01:08,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:01:08" (3/3) ... [2020-09-24 16:01:08,600 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list2.c_1.i [2020-09-24 16:01:08,612 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:01:08,623 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:01:08,646 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:01:08,674 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:01:08,675 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:01:08,675 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:01:08,675 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:01:08,675 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:01:08,675 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:01:08,675 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:01:08,676 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:01:08,699 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-09-24 16:01:08,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-24 16:01:08,707 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:08,708 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] [2020-09-24 16:01:08,708 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:08,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:08,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1490968618, now seen corresponding path program 1 times [2020-09-24 16:01:08,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:08,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1218887498] [2020-09-24 16:01:08,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:08,922 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:08,923 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:08,923 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:08,924 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:08,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 16:01:08,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:08,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 16:01:08,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:08,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:01:08,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-24 16:01:08,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:01:08,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:09,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:09,145 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:09,145 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:09,145 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:09,146 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:09,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:09,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:09,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:01:09,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:09,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:09,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:09,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:09,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:09,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:01:09,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1218887498] [2020-09-24 16:01:09,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:01:09,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 16:01:09,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544662009] [2020-09-24 16:01:09,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 16:01:09,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:09,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 16:01:09,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:01:09,201 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 7 states. [2020-09-24 16:01:09,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:09,652 INFO L93 Difference]: Finished difference Result 128 states and 157 transitions. [2020-09-24 16:01:09,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 16:01:09,654 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-24 16:01:09,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:09,670 INFO L225 Difference]: With dead ends: 128 [2020-09-24 16:01:09,671 INFO L226 Difference]: Without dead ends: 67 [2020-09-24 16:01:09,677 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 [2020-09-24 16:01:09,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-24 16:01:09,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2020-09-24 16:01:09,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-24 16:01:09,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2020-09-24 16:01:09,747 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 21 [2020-09-24 16:01:09,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:09,748 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2020-09-24 16:01:09,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 16:01:09,748 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2020-09-24 16:01:09,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-24 16:01:09,751 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:09,752 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] [2020-09-24 16:01:09,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:01:09,752 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:09,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:09,753 INFO L82 PathProgramCache]: Analyzing trace with hash -114203518, now seen corresponding path program 1 times [2020-09-24 16:01:09,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:09,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1646748865] [2020-09-24 16:01:09,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:09,832 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:09,832 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:09,833 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:09,833 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:09,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-24 16:01:09,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:09,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 16:01:09,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:09,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:01:09,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-24 16:01:09,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:01:09,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:09,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:09,950 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:09,951 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:09,951 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:09,951 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:09,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:09,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:09,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:09,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:09,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:09,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:09,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:09,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:09,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:09,977 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:09,977 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:09,977 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:09,978 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:09,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:09,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:09,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:09,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:09,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:09,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:09,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:09,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:09,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:09,994 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:09,994 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:09,995 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:09,995 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:09,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:09,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:09,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:09,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:09,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:09,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:09,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:09,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:10,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,028 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,029 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,029 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,030 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:10,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 16:01:10,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:01:10,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:10,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 16:01:10,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:10,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,103 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,104 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,104 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,105 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:10,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:01:10,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:01:10,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:10,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:01:10,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:10,149 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 16:01:10,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1646748865] [2020-09-24 16:01:10,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:01:10,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:01:10,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512319306] [2020-09-24 16:01:10,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:01:10,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:10,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:01:10,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:01:10,154 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand 9 states. [2020-09-24 16:01:10,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:10,472 INFO L93 Difference]: Finished difference Result 99 states and 112 transitions. [2020-09-24 16:01:10,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 16:01:10,473 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-09-24 16:01:10,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:10,475 INFO L225 Difference]: With dead ends: 99 [2020-09-24 16:01:10,475 INFO L226 Difference]: Without dead ends: 73 [2020-09-24 16:01:10,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:01:10,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-24 16:01:10,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 69. [2020-09-24 16:01:10,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-24 16:01:10,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2020-09-24 16:01:10,492 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 61 [2020-09-24 16:01:10,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:10,492 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2020-09-24 16:01:10,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:01:10,493 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2020-09-24 16:01:10,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-24 16:01:10,495 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:10,495 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 16:01:10,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:01:10,496 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:10,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:10,496 INFO L82 PathProgramCache]: Analyzing trace with hash -577094017, now seen corresponding path program 1 times [2020-09-24 16:01:10,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:10,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [408260006] [2020-09-24 16:01:10,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,571 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,572 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,573 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,573 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-24 16:01:10,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 16:01:10,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:01:10,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-24 16:01:10,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 16:01:10,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:10,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,683 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,683 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,683 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,684 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:10,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:10,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:10,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:10,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:10,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:01:10,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,747 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,747 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,747 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:10,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 16:01:10,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:01:10,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:10,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 16:01:10,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-24 16:01:10,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,817 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,817 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,817 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,818 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:10,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:01:10,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:01:10,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:10,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:01:10,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:10,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,856 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,857 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,857 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,857 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:10,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:01:10,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:01:10,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:10,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 16:01:10,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:10,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:10,869 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:10,870 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:10,870 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:10,870 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:10,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:10,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:10,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:10,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:10,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:10,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:10,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:10,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:10,885 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-24 16:01:10,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [408260006] [2020-09-24 16:01:10,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:01:10,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 16:01:10,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080166201] [2020-09-24 16:01:10,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:01:10,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:10,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:01:10,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:01:10,887 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 9 states. [2020-09-24 16:01:11,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:11,164 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2020-09-24 16:01:11,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 16:01:11,165 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-09-24 16:01:11,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:11,167 INFO L225 Difference]: With dead ends: 102 [2020-09-24 16:01:11,167 INFO L226 Difference]: Without dead ends: 65 [2020-09-24 16:01:11,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:01:11,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-24 16:01:11,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 61. [2020-09-24 16:01:11,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-24 16:01:11,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2020-09-24 16:01:11,180 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 61 [2020-09-24 16:01:11,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:11,180 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2020-09-24 16:01:11,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:01:11,180 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2020-09-24 16:01:11,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-24 16:01:11,182 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:11,183 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] [2020-09-24 16:01:11,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:01:11,183 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:11,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:11,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1723385860, now seen corresponding path program 1 times [2020-09-24 16:01:11,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:11,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380003607] [2020-09-24 16:01:11,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:11,381 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:11,381 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:11,381 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:11,381 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:11,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-24 16:01:11,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:11,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-24 16:01:11,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:11,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 16:01:11,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 16:01:11,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 16:01:11,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:11,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:11,498 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:11,498 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:11,498 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:11,499 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:11,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:11,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:11,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:01:11,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:11,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:01:11,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:11,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:01:11,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:11,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:11,555 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:11,555 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:11,555 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:11,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:11,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:11,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:11,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 16:01:11,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:11,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:01:11,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:11,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:01:11,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:11,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:11,609 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:11,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:11,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:11,609 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:11,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:11,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:11,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:01:11,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:01:11,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:11,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:01:11,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:11,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:11,680 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:11,680 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:11,681 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:11,681 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:11,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:11,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:11,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 16:01:11,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:11,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:01:11,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:11,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:01:11,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:11,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:11,747 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:11,747 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:11,747 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:11,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:11,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:11,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:11,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 16:01:11,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:01:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:01:11,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:11,813 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:01:11,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380003607] [2020-09-24 16:01:11,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:01:11,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 16:01:11,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543758499] [2020-09-24 16:01:11,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 16:01:11,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:11,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 16:01:11,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2020-09-24 16:01:11,816 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand 19 states. [2020-09-24 16:01:13,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:13,222 INFO L93 Difference]: Finished difference Result 125 states and 139 transitions. [2020-09-24 16:01:13,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 16:01:13,223 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 61 [2020-09-24 16:01:13,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:13,225 INFO L225 Difference]: With dead ends: 125 [2020-09-24 16:01:13,228 INFO L226 Difference]: Without dead ends: 122 [2020-09-24 16:01:13,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=312, Invalid=1328, Unknown=0, NotChecked=0, Total=1640 [2020-09-24 16:01:13,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-09-24 16:01:13,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 104. [2020-09-24 16:01:13,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-09-24 16:01:13,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 119 transitions. [2020-09-24 16:01:13,276 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 119 transitions. Word has length 61 [2020-09-24 16:01:13,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:13,277 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 119 transitions. [2020-09-24 16:01:13,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 16:01:13,277 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 119 transitions. [2020-09-24 16:01:13,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-24 16:01:13,280 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:13,280 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] [2020-09-24 16:01:13,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:01:13,283 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:13,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:13,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1814582916, now seen corresponding path program 1 times [2020-09-24 16:01:13,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:13,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [469712316] [2020-09-24 16:01:13,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:13,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:13,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:13,449 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:13,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:13,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 16:01:13,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:13,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-24 16:01:13,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:13,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 16:01:13,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 16:01:13,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 16:01:13,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:13,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:13,564 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:13,564 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:13,564 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:13,566 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:13,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:13,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:13,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:01:13,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:13,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:01:13,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:13,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:01:13,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-24 16:01:13,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:13,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:13,660 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:13,660 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:13,660 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:13,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:13,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:13,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 16:01:13,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:13,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:01:13,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:13,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:01:13,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:13,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:13,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:13,730 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:13,730 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:13,730 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:13,731 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:13,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:13,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:13,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 16:01:13,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:13,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:01:13,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:13,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:01:13,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:13,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:13,794 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:13,794 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:13,795 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:13,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:13,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:13,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:13,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:13,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:13,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:01:13,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:13,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 16:01:13,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:13,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:13,804 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:13,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:13,805 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:13,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:13,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:13,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:13,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:13,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:13,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:13,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:13,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:13,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:13,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 16:01:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:13,839 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:13,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:13,840 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:13,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:13,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:01:13,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:13,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:01:13,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:13,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:01:13,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:13,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 16:01:13,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:13,873 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 16:01:13,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [469712316] [2020-09-24 16:01:13,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:01:13,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-24 16:01:13,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019342797] [2020-09-24 16:01:13,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-24 16:01:13,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:13,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-24 16:01:13,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2020-09-24 16:01:13,876 INFO L87 Difference]: Start difference. First operand 104 states and 119 transitions. Second operand 18 states. [2020-09-24 16:01:15,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:15,342 INFO L93 Difference]: Finished difference Result 126 states and 142 transitions. [2020-09-24 16:01:15,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 16:01:15,342 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 70 [2020-09-24 16:01:15,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:15,345 INFO L225 Difference]: With dead ends: 126 [2020-09-24 16:01:15,345 INFO L226 Difference]: Without dead ends: 117 [2020-09-24 16:01:15,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=279, Invalid=1203, Unknown=0, NotChecked=0, Total=1482 [2020-09-24 16:01:15,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-09-24 16:01:15,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 110. [2020-09-24 16:01:15,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-09-24 16:01:15,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 125 transitions. [2020-09-24 16:01:15,363 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 125 transitions. Word has length 70 [2020-09-24 16:01:15,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:15,363 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 125 transitions. [2020-09-24 16:01:15,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-24 16:01:15,364 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 125 transitions. [2020-09-24 16:01:15,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-24 16:01:15,365 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:15,365 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] [2020-09-24 16:01:15,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:01:15,366 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:15,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:15,366 INFO L82 PathProgramCache]: Analyzing trace with hash 983151375, now seen corresponding path program 1 times [2020-09-24 16:01:15,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:15,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311716325] [2020-09-24 16:01:15,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:15,481 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:15,481 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:15,482 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:15,482 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:15,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 16:01:15,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:15,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 16:01:15,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:15,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 16:01:15,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-24 16:01:15,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 16:01:15,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:15,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:15,594 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:15,594 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:15,594 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:15,594 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:15,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:15,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:15,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:15,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:15,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:15,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:15,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:15,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:15,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:15,622 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:15,622 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:15,622 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:15,622 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:15,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:15,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:15,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:01:15,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:15,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:01:15,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:15,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 16:01:15,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:15,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:15,661 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:15,661 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:15,661 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:15,662 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:15,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:15,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:15,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:01:15,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:15,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:01:15,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:15,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:01:15,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:15,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:15,707 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:15,707 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:15,707 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:15,707 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:15,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:15,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:15,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 16:01:15,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:15,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:01:15,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:15,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:01:15,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:15,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:15,774 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:15,775 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:15,775 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:15,775 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:15,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:15,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:15,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 16:01:15,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:15,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:01:15,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:15,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:01:15,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:15,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 16:01:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:15,870 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:15,870 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:15,871 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:15,871 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:15,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:01:15,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:15,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:01:15,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:15,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:01:15,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:15,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:01:15,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:15,926 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 16:01:15,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311716325] [2020-09-24 16:01:15,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:01:15,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-24 16:01:15,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524545122] [2020-09-24 16:01:15,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-24 16:01:15,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:15,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-24 16:01:15,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-24 16:01:15,929 INFO L87 Difference]: Start difference. First operand 110 states and 125 transitions. Second operand 23 states. [2020-09-24 16:01:17,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:17,490 INFO L93 Difference]: Finished difference Result 126 states and 145 transitions. [2020-09-24 16:01:17,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 16:01:17,492 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 71 [2020-09-24 16:01:17,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:17,495 INFO L225 Difference]: With dead ends: 126 [2020-09-24 16:01:17,495 INFO L226 Difference]: Without dead ends: 117 [2020-09-24 16:01:17,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=188, Invalid=1618, Unknown=0, NotChecked=0, Total=1806 [2020-09-24 16:01:17,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-09-24 16:01:17,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 107. [2020-09-24 16:01:17,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-24 16:01:17,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 116 transitions. [2020-09-24 16:01:17,512 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 116 transitions. Word has length 71 [2020-09-24 16:01:17,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:17,512 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 116 transitions. [2020-09-24 16:01:17,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-24 16:01:17,512 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 116 transitions. [2020-09-24 16:01:17,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-24 16:01:17,514 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:17,514 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] [2020-09-24 16:01:17,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 16:01:17,515 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:17,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:17,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1660138148, now seen corresponding path program 1 times [2020-09-24 16:01:17,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:17,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1246228498] [2020-09-24 16:01:17,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:17,681 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:17,681 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:17,681 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:17,682 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:17,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 16:01:17,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:17,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 16:01:17,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:17,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 16:01:17,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-24 16:01:17,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-24 16:01:17,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:17,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:17,798 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:17,799 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:17,799 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:17,799 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:17,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:17,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:17,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:17,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:17,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:17,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:17,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:17,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:17,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:17,840 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:17,840 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:17,841 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:17,841 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:17,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:17,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:17,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:01:17,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:17,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:01:17,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:17,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 16:01:17,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:17,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:17,887 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:17,887 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:17,887 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:17,888 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:17,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:17,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:17,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:01:17,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:17,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:01:17,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:17,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:01:17,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:17,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:17,950 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:17,951 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:17,951 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:17,951 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:17,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:17,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:17,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 16:01:17,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:17,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:01:17,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:17,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:01:17,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:18,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:18,046 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:18,046 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:18,046 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:18,047 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:18,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:18,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:18,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 16:01:18,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:18,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:01:18,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:18,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:01:18,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:18,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 16:01:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:18,173 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:18,174 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:18,174 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:18,174 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:18,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:01:18,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:18,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:01:18,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:18,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:01:18,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:18,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:01:18,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:18,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-24 16:01:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:18,192 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:18,193 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:18,193 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:18,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:18,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:01:18,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:18,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:01:18,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:18,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:01:18,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:18,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:01:18,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:18,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-24 16:01:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:18,277 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:18,278 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:18,278 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:18,278 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:18,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:01:18,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:18,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:01:18,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:18,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:01:18,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:18,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:01:18,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:18,348 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 16:01:18,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1246228498] [2020-09-24 16:01:18,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:01:18,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-24 16:01:18,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791185846] [2020-09-24 16:01:18,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-24 16:01:18,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:18,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-24 16:01:18,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2020-09-24 16:01:18,354 INFO L87 Difference]: Start difference. First operand 107 states and 116 transitions. Second operand 24 states. [2020-09-24 16:01:19,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:19,848 INFO L93 Difference]: Finished difference Result 120 states and 129 transitions. [2020-09-24 16:01:19,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 16:01:19,848 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 85 [2020-09-24 16:01:19,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:19,851 INFO L225 Difference]: With dead ends: 120 [2020-09-24 16:01:19,851 INFO L226 Difference]: Without dead ends: 117 [2020-09-24 16:01:19,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=210, Invalid=1682, Unknown=0, NotChecked=0, Total=1892 [2020-09-24 16:01:19,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-09-24 16:01:19,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 116. [2020-09-24 16:01:19,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-09-24 16:01:19,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 125 transitions. [2020-09-24 16:01:19,877 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 125 transitions. Word has length 85 [2020-09-24 16:01:19,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:19,878 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 125 transitions. [2020-09-24 16:01:19,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-24 16:01:19,879 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 125 transitions. [2020-09-24 16:01:19,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-24 16:01:19,880 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:19,880 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] [2020-09-24 16:01:19,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 16:01:19,880 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:19,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:19,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1173492322, now seen corresponding path program 2 times [2020-09-24 16:01:19,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:19,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1923488525] [2020-09-24 16:01:19,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:19,934 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:19,934 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:19,934 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:19,934 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:19,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 16:01:19,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:19,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 16:01:19,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:19,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 16:01:19,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-24 16:01:19,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 16:01:19,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:20,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:20,012 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:20,012 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:20,013 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:20,013 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:20,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:20,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:20,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:20,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:20,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:20,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:20,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:20,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:20,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:20,028 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:20,029 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:20,029 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:20,029 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:20,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:20,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:20,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:20,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:20,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:20,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:20,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:20,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:20,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:20,037 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:20,037 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:20,037 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:20,037 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:20,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:20,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:20,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:20,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:20,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:20,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:20,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:20,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:20,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:20,045 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:20,045 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:20,045 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:20,045 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:20,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:20,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:20,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:20,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:20,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:20,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:20,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:20,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:20,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:20,053 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:20,053 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:20,054 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:20,054 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:20,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:20,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:20,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:20,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:20,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:20,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:20,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:20,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:20,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 16:01:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:20,078 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:20,078 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:20,078 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:20,079 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:20,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:01:20,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:20,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:01:20,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:20,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:01:20,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:20,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:01:20,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:20,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-24 16:01:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:20,113 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:20,113 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:20,113 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:20,113 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:20,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:01:20,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:20,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:01:20,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:20,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:01:20,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:20,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 16:01:20,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:20,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-24 16:01:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:20,137 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:20,137 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:20,137 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:20,138 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:20,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:01:20,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:20,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:01:20,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:20,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:01:20,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:20,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:01:20,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:20,180 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-24 16:01:20,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1923488525] [2020-09-24 16:01:20,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:01:20,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 16:01:20,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587142980] [2020-09-24 16:01:20,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:01:20,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:20,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:01:20,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:01:20,183 INFO L87 Difference]: Start difference. First operand 116 states and 125 transitions. Second operand 10 states. [2020-09-24 16:01:20,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:20,842 INFO L93 Difference]: Finished difference Result 127 states and 135 transitions. [2020-09-24 16:01:20,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 16:01:20,847 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-24 16:01:20,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:20,849 INFO L225 Difference]: With dead ends: 127 [2020-09-24 16:01:20,849 INFO L226 Difference]: Without dead ends: 115 [2020-09-24 16:01:20,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2020-09-24 16:01:20,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-09-24 16:01:20,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-09-24 16:01:20,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-09-24 16:01:20,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 123 transitions. [2020-09-24 16:01:20,861 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 123 transitions. Word has length 85 [2020-09-24 16:01:20,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:20,862 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 123 transitions. [2020-09-24 16:01:20,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:01:20,862 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 123 transitions. [2020-09-24 16:01:20,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 16:01:20,863 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:20,863 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, 1] [2020-09-24 16:01:20,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 16:01:20,863 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:20,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:20,864 INFO L82 PathProgramCache]: Analyzing trace with hash 2046230471, now seen corresponding path program 1 times [2020-09-24 16:01:20,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:20,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1280110057] [2020-09-24 16:01:20,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:20,969 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:20,969 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:20,970 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:20,970 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:20,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 16:01:20,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:20,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-24 16:01:20,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:20,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 16:01:20,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-24 16:01:20,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 16:01:20,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:21,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:21,047 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:21,047 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:21,048 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:21,048 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:21,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:21,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:21,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:21,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:21,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:21,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:21,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:21,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:21,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:21,073 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:21,073 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:21,074 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:21,074 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:21,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:21,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:21,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:01:21,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:01:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 16:01:21,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:21,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:21,106 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:21,106 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:21,107 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:21,107 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:21,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:21,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:21,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:01:21,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:21,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:01:21,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:21,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:01:21,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:21,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:21,149 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:21,149 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:21,150 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:21,150 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:21,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:21,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:21,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 16:01:21,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:21,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:01:21,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:21,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:01:21,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:21,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:21,218 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:21,219 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:21,219 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:21,219 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:21,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:21,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:21,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 16:01:21,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:21,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:01:21,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:21,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:01:21,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:21,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 16:01:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:21,325 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:21,325 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:21,325 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:21,326 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:21,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:01:21,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:21,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:21,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:21,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:01:21,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:21,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:01:21,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:21,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-24 16:01:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:21,337 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:21,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:21,338 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:21,338 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:21,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:01:21,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:21,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:01:21,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:21,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:01:21,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:21,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 16:01:21,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:21,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-24 16:01:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:21,396 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:21,397 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:21,397 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:21,397 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:21,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:01:21,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:21,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:01:21,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:21,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:01:21,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:21,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:01:21,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:21,459 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 16:01:21,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1280110057] [2020-09-24 16:01:21,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:01:21,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-24 16:01:21,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032568257] [2020-09-24 16:01:21,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-24 16:01:21,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:21,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-24 16:01:21,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2020-09-24 16:01:21,462 INFO L87 Difference]: Start difference. First operand 115 states and 123 transitions. Second operand 23 states. [2020-09-24 16:01:22,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:22,931 INFO L93 Difference]: Finished difference Result 129 states and 137 transitions. [2020-09-24 16:01:22,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 16:01:22,932 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 86 [2020-09-24 16:01:22,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:22,933 INFO L225 Difference]: With dead ends: 129 [2020-09-24 16:01:22,933 INFO L226 Difference]: Without dead ends: 116 [2020-09-24 16:01:22,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=192, Invalid=1700, Unknown=0, NotChecked=0, Total=1892 [2020-09-24 16:01:22,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-09-24 16:01:22,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 115. [2020-09-24 16:01:22,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-09-24 16:01:22,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 122 transitions. [2020-09-24 16:01:22,945 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 122 transitions. Word has length 86 [2020-09-24 16:01:22,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:22,945 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 122 transitions. [2020-09-24 16:01:22,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-24 16:01:22,945 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 122 transitions. [2020-09-24 16:01:22,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 16:01:22,946 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:22,947 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, 1] [2020-09-24 16:01:22,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 16:01:22,947 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:22,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:22,948 INFO L82 PathProgramCache]: Analyzing trace with hash -305538175, now seen corresponding path program 2 times [2020-09-24 16:01:22,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:22,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672134703] [2020-09-24 16:01:22,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:22,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:23,088 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:23,089 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:23,089 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:23,089 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:23,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 16:01:23,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:23,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 16:01:23,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:23,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 16:01:23,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 16:01:23,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 16:01:23,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:23,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:23,200 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:23,200 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:23,201 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:23,201 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:23,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:23,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:23,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:23,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:23,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:01:23,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:23,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:01:23,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:23,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:23,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:23,239 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:23,240 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:23,240 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:23,240 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:23,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:23,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:23,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 16:01:23,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:23,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:01:23,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:23,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:01:23,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:23,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:23,287 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:23,288 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:23,288 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:23,288 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:23,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:23,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:23,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:01:23,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:23,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:01:23,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:23,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:01:23,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:23,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:23,337 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:23,338 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:23,338 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:23,338 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:23,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:23,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:23,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 16:01:23,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:23,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:01:23,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:23,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:01:23,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:23,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:23,395 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:23,396 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:23,396 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:23,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:23,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:23,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:23,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:01:23,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:23,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:01:23,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:23,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:01:23,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:23,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 16:01:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:23,452 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:23,453 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:23,453 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:23,453 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:23,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 16:01:23,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:23,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:23,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:23,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:01:23,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:23,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 16:01:23,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:23,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-24 16:01:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:23,462 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:23,462 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:23,462 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:23,463 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:23,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:01:23,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:23,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:23,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:23,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:01:23,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:23,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:01:23,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:23,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-24 16:01:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:23,471 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:23,471 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:23,471 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:23,472 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:23,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:01:23,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:23,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:01:23,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:23,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:01:23,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:23,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:01:23,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:23,510 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-24 16:01:23,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672134703] [2020-09-24 16:01:23,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:01:23,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 16:01:23,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675421627] [2020-09-24 16:01:23,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 16:01:23,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:23,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 16:01:23,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2020-09-24 16:01:23,512 INFO L87 Difference]: Start difference. First operand 115 states and 122 transitions. Second operand 19 states. [2020-09-24 16:01:25,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:25,092 INFO L93 Difference]: Finished difference Result 146 states and 152 transitions. [2020-09-24 16:01:25,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 16:01:25,093 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 86 [2020-09-24 16:01:25,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:25,095 INFO L225 Difference]: With dead ends: 146 [2020-09-24 16:01:25,095 INFO L226 Difference]: Without dead ends: 133 [2020-09-24 16:01:25,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=1473, Unknown=0, NotChecked=0, Total=1722 [2020-09-24 16:01:25,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-09-24 16:01:25,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 105. [2020-09-24 16:01:25,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-24 16:01:25,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 111 transitions. [2020-09-24 16:01:25,107 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 111 transitions. Word has length 86 [2020-09-24 16:01:25,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:25,107 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 111 transitions. [2020-09-24 16:01:25,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 16:01:25,107 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 111 transitions. [2020-09-24 16:01:25,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-24 16:01:25,108 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:25,108 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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] [2020-09-24 16:01:25,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 16:01:25,109 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:25,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:25,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1959566780, now seen corresponding path program 1 times [2020-09-24 16:01:25,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:25,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015630652] [2020-09-24 16:01:25,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:25,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:25,275 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:25,275 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:25,276 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:25,276 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:25,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 16:01:25,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:25,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-24 16:01:25,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:25,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 16:01:25,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 16:01:25,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 16:01:25,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:25,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:01:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:25,355 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:25,355 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:25,355 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:25,356 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:25,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 16:01:25,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:25,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:01:25,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:25,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 16:01:25,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:01:25,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:01:25,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:25,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 16:01:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:25,404 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:25,405 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:25,405 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:25,405 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:25,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:25,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:25,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:01:25,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:25,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:01:25,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:25,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:01:25,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:25,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:25,452 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:25,452 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:25,452 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:25,452 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:25,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:25,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:25,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:01:25,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:25,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:01:25,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:25,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:01:25,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:25,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:01:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:25,515 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:25,515 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:25,515 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:25,516 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:25,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 16:01:25,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:25,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 16:01:25,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:25,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:01:25,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:25,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 16:01:25,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:01:25,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:01:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:25,574 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:25,575 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:25,575 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:25,575 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:25,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:01:25,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:25,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 16:01:25,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:01:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:01:25,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:25,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 16:01:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:25,675 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:25,675 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:25,675 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:25,676 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:25,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:01:25,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:25,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:01:25,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:25,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:01:25,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:25,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 16:01:25,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:25,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-24 16:01:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:25,711 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:25,712 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:25,712 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:25,712 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:25,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:01:25,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:25,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:01:25,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:25,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:01:25,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:25,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 16:01:25,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:25,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-09-24 16:01:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:25,727 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:25,728 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:25,728 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:25,728 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:25,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:01:25,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:25,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:01:25,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:25,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:01:25,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 16:01:25,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 16:01:25,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:25,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-24 16:01:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:01:25,784 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:01:25,784 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:01:25,785 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:01:25,785 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:01:25,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:01:25,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:01:25,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:01:25,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:01:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:01:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:01:25,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:01:25,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:01:25,802 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 20 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 16:01:25,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1015630652] [2020-09-24 16:01:25,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:01:25,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-24 16:01:25,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230687345] [2020-09-24 16:01:25,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-24 16:01:25,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:01:25,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-24 16:01:25,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2020-09-24 16:01:25,805 INFO L87 Difference]: Start difference. First operand 105 states and 111 transitions. Second operand 21 states. [2020-09-24 16:01:27,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:01:27,315 INFO L93 Difference]: Finished difference Result 130 states and 135 transitions. [2020-09-24 16:01:27,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 16:01:27,316 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 94 [2020-09-24 16:01:27,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:01:27,318 INFO L225 Difference]: With dead ends: 130 [2020-09-24 16:01:27,318 INFO L226 Difference]: Without dead ends: 101 [2020-09-24 16:01:27,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=247, Invalid=1393, Unknown=0, NotChecked=0, Total=1640 [2020-09-24 16:01:27,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-24 16:01:27,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 95. [2020-09-24 16:01:27,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-09-24 16:01:27,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 99 transitions. [2020-09-24 16:01:27,328 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 99 transitions. Word has length 94 [2020-09-24 16:01:27,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:01:27,329 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 99 transitions. [2020-09-24 16:01:27,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-24 16:01:27,329 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 99 transitions. [2020-09-24 16:01:27,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-24 16:01:27,330 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:01:27,330 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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] [2020-09-24 16:01:27,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 16:01:27,330 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:01:27,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:01:27,331 INFO L82 PathProgramCache]: Analyzing trace with hash -416868516, now seen corresponding path program 1 times [2020-09-24 16:01:27,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:01:27,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124421708] [2020-09-24 16:01:27,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:01:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 16:01:27,361 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 16:01:27,361 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 16:01:27,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 16:01:27,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:01:27 BoogieIcfgContainer [2020-09-24 16:01:27,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 16:01:27,395 INFO L168 Benchmark]: Toolchain (without parser) took 20342.49 ms. Allocated memory was 147.3 MB in the beginning and 426.8 MB in the end (delta: 279.4 MB). Free memory was 102.4 MB in the beginning and 266.6 MB in the end (delta: -164.3 MB). Peak memory consumption was 115.2 MB. Max. memory is 7.1 GB. [2020-09-24 16:01:27,396 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 16:01:27,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 756.68 ms. Allocated memory was 147.3 MB in the beginning and 202.9 MB in the end (delta: 55.6 MB). Free memory was 101.7 MB in the beginning and 167.9 MB in the end (delta: -66.1 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-24 16:01:27,397 INFO L168 Benchmark]: Boogie Preprocessor took 81.49 ms. Allocated memory is still 202.9 MB. Free memory was 167.9 MB in the beginning and 164.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-09-24 16:01:27,398 INFO L168 Benchmark]: RCFGBuilder took 693.87 ms. Allocated memory is still 202.9 MB. Free memory was 164.6 MB in the beginning and 117.8 MB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. [2020-09-24 16:01:27,399 INFO L168 Benchmark]: TraceAbstraction took 18800.75 ms. Allocated memory was 202.9 MB in the beginning and 426.8 MB in the end (delta: 223.9 MB). Free memory was 117.2 MB in the beginning and 266.6 MB in the end (delta: -149.5 MB). Peak memory consumption was 74.4 MB. Max. memory is 7.1 GB. [2020-09-24 16:01:27,402 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 756.68 ms. Allocated memory was 147.3 MB in the beginning and 202.9 MB in the end (delta: 55.6 MB). Free memory was 101.7 MB in the beginning and 167.9 MB in the end (delta: -66.1 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 81.49 ms. Allocated memory is still 202.9 MB. Free memory was 167.9 MB in the beginning and 164.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 693.87 ms. Allocated memory is still 202.9 MB. Free memory was 164.6 MB in the beginning and 117.8 MB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18800.75 ms. Allocated memory was 202.9 MB in the beginning and 426.8 MB in the end (delta: 223.9 MB). Free memory was 117.2 MB in the beginning and 266.6 MB in the end (delta: -149.5 MB). Peak memory consumption was 74.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L867] void * guard_malloc_counter = 0; [L887] struct list_head *elem = ((void *)0); [L900] static struct list_head head; [L903] struct list_head *dev1, *dev2; [L904] CALL, EXPR my_malloc(sizeof(*dev1)) [L879] CALL, EXPR __getMemory(size) [L871] (size > 0) ? (0) : __blast_assert () [L872] guard_malloc_counter++ [L873] COND FALSE !(!__VERIFIER_nondet_int()) [L875] return (void *) guard_malloc_counter; [L879] RET, EXPR __getMemory(size) [L879] return __getMemory(size); [L904] RET, EXPR my_malloc(sizeof(*dev1)) [L904] dev1 = my_malloc(sizeof(*dev1)) [L905] CALL, EXPR my_malloc(sizeof(*dev2)) [L879] CALL, EXPR __getMemory(size) [L871] (size > 0) ? (0) : __blast_assert () [L872] guard_malloc_counter++ [L873] COND FALSE !(!__VERIFIER_nondet_int()) [L875] return (void *) guard_malloc_counter; [L879] RET, EXPR __getMemory(size) [L879] return __getMemory(size); [L905] RET, EXPR my_malloc(sizeof(*dev2)) [L905] dev2 = my_malloc(sizeof(*dev2)) [L906] COND TRUE dev1!=((void *)0) && dev2!=((void *)0) [L907] CALL list_add(dev2, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L891] COND FALSE !(__VERIFIER_nondet_int()) [L907] RET list_add(dev2, &head) [L908] CALL list_add(dev1, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L891] COND TRUE __VERIFIER_nondet_int() [L892] elem = new [L908] RET list_add(dev1, &head) [L909] CALL list_del(dev2) [L896] COND FALSE !(entry==elem) [L909] RET list_del(dev2) [L910] CALL list_add(dev2, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L891] COND FALSE !(__VERIFIER_nondet_int()) [L910] RET list_add(dev2, &head) [L913] CALL list_add(dev1, &head) [L890] (new!=elem) ? (0) : __blast_assert () [L890] CALL __blast_assert () [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.6s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 634 SDtfs, 1382 SDslu, 2352 SDs, 0 SdLazy, 7341 SolverSat, 695 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 460 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 323 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1625 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 83 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 875 NumberOfCodeBlocks, 875 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 770 ConstructedInterpolants, 0 QuantifiedInterpolants, 218643 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 165/259 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...