/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-simple/sll2n_insert_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:40:45,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:40:45,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:40:45,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:40:45,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:40:45,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:40:45,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:40:45,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:40:45,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:40:45,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:40:45,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:40:45,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:40:45,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:40:45,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:40:45,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:40:45,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:40:45,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:40:45,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:40:45,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:40:45,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:40:45,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:40:45,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:40:45,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:40:45,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:40:45,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:40:45,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:40:45,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:40:45,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:40:45,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:40:45,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:40:45,802 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:40:45,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:40:45,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:40:45,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:40:45,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:40:45,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:40:45,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:40:45,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:40:45,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:40:45,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:40:45,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:40:45,813 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 10:40:45,851 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:40:45,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:40:45,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:40:45,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:40:45,854 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:40:45,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:40:45,854 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:40:45,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:40:45,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:40:45,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:40:45,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:40:45,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:40:45,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:40:45,857 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:40:45,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:40:45,857 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:40:45,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:40:45,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:40:45,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:40:45,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:40:45,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:40:45,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:40:45,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:40:45,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:40:45,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:40:45,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:40:45,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:40:45,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:40:45,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:40:45,860 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 10:40:46,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:40:46,214 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:40:46,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:40:46,219 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:40:46,219 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:40:46,220 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_insert_unequal.i [2020-10-13 10:40:46,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e39cadac/45875c8bd5324d458e2bed13edc944ab/FLAGa8c3b17e1 [2020-10-13 10:40:46,853 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:40:46,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-simple/sll2n_insert_unequal.i [2020-10-13 10:40:46,875 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e39cadac/45875c8bd5324d458e2bed13edc944ab/FLAGa8c3b17e1 [2020-10-13 10:40:47,124 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e39cadac/45875c8bd5324d458e2bed13edc944ab [2020-10-13 10:40:47,133 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:40:47,135 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:40:47,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:40:47,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:40:47,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:40:47,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:40:47" (1/1) ... [2020-10-13 10:40:47,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32518cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:47, skipping insertion in model container [2020-10-13 10:40:47,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:40:47" (1/1) ... [2020-10-13 10:40:47,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:40:47,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:40:47,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:40:47,702 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:40:47,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:40:47,846 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:40:47,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:47 WrapperNode [2020-10-13 10:40:47,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:40:47,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:40:47,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:40:47,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:40:47,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:47" (1/1) ... [2020-10-13 10:40:47,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:47" (1/1) ... [2020-10-13 10:40:47,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:47" (1/1) ... [2020-10-13 10:40:47,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:47" (1/1) ... [2020-10-13 10:40:47,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:47" (1/1) ... [2020-10-13 10:40:47,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:47" (1/1) ... [2020-10-13 10:40:47,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:47" (1/1) ... [2020-10-13 10:40:47,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:40:47,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:40:47,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:40:47,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:40:47,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:40:47,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:40:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:40:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-13 10:40:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-13 10:40:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-10-13 10:40:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-10-13 10:40:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2020-10-13 10:40:47,992 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2020-10-13 10:40:47,992 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2020-10-13 10:40:47,992 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:40:47,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:40:47,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 10:40:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-13 10:40:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-13 10:40:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-13 10:40:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-13 10:40:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-13 10:40:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-13 10:40:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-13 10:40:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-13 10:40:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-13 10:40:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-13 10:40:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-13 10:40:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-13 10:40:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-13 10:40:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-13 10:40:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-13 10:40:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-13 10:40:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-13 10:40:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-13 10:40:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-13 10:40:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-13 10:40:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-13 10:40:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-13 10:40:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-13 10:40:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-13 10:40:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-13 10:40:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-13 10:40:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-13 10:40:47,998 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-13 10:40:47,999 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-13 10:40:47,999 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-13 10:40:47,999 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-13 10:40:47,999 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-13 10:40:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-13 10:40:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-13 10:40:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-13 10:40:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-13 10:40:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-13 10:40:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-13 10:40:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-13 10:40:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-13 10:40:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-13 10:40:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-13 10:40:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-13 10:40:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-13 10:40:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-13 10:40:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-13 10:40:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-13 10:40:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-13 10:40:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-13 10:40:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-13 10:40:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-13 10:40:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-13 10:40:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 10:40:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 10:40:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-13 10:40:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 10:40:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-13 10:40:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-13 10:40:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-13 10:40:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-13 10:40:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-13 10:40:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 10:40:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-13 10:40:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-13 10:40:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-13 10:40:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 10:40:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-13 10:40:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-13 10:40:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-13 10:40:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-13 10:40:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-13 10:40:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-13 10:40:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-13 10:40:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-13 10:40:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-13 10:40:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-13 10:40:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-13 10:40:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-13 10:40:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-13 10:40:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-13 10:40:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-13 10:40:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-13 10:40:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-13 10:40:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-13 10:40:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-13 10:40:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-13 10:40:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-13 10:40:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-13 10:40:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-13 10:40:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-13 10:40:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-13 10:40:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-13 10:40:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-13 10:40:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-13 10:40:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-13 10:40:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-13 10:40:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-13 10:40:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-13 10:40:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-13 10:40:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-13 10:40:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-13 10:40:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-13 10:40:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-13 10:40:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-13 10:40:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-13 10:40:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-10-13 10:40:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-10-13 10:40:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 10:40:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 10:40:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 10:40:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2020-10-13 10:40:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2020-10-13 10:40:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 10:40:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 10:40:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2020-10-13 10:40:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:40:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 10:40:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 10:40:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 10:40:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:40:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:40:48,400 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-10-13 10:40:48,597 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:40:48,597 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 10:40:48,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:40:48 BoogieIcfgContainer [2020-10-13 10:40:48,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:40:48,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:40:48,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:40:48,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:40:48,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:40:47" (1/3) ... [2020-10-13 10:40:48,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cf1ddf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:40:48, skipping insertion in model container [2020-10-13 10:40:48,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:47" (2/3) ... [2020-10-13 10:40:48,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cf1ddf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:40:48, skipping insertion in model container [2020-10-13 10:40:48,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:40:48" (3/3) ... [2020-10-13 10:40:48,611 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2n_insert_unequal.i [2020-10-13 10:40:48,622 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:40:48,631 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 10:40:48,647 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 10:40:48,673 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:40:48,674 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:40:48,674 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:40:48,674 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:40:48,674 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:40:48,674 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:40:48,675 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:40:48,675 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:40:48,696 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2020-10-13 10:40:48,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 10:40:48,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:40:48,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:40:48,706 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:40:48,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:40:48,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1925718240, now seen corresponding path program 1 times [2020-10-13 10:40:48,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:40:48,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099667157] [2020-10-13 10:40:48,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:40:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:48,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:49,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:49,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:49,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:49,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-13 10:40:49,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:40:49,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 845 [2020-10-13 10:40:49,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:49,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:49,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 10:40:49,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:49,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 10:40:49,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:40:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:49,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:49,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:49,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:40:49,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:49,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 10:40:49,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:49,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:49,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:49,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:49,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:49,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:40:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:49,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:49,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:49,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:49,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:49,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 10:40:49,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:49,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:49,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 10:40:49,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:49,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:49,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 10:40:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:49,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:49,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:49,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:49,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 10:40:49,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:40:49,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-13 10:40:49,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:49,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:49,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 10:40:49,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:49,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 10:40:49,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:40:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:50,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:50,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:50,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:50,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:50,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 10:40:50,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:50,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:50,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:50,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:50,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:50,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:40:50,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099667157] [2020-10-13 10:40:50,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:40:50,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 10:40:50,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491571134] [2020-10-13 10:40:50,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 10:40:50,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:40:50,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 10:40:50,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 10:40:50,063 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 4 states. [2020-10-13 10:40:50,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:40:50,311 INFO L93 Difference]: Finished difference Result 102 states and 138 transitions. [2020-10-13 10:40:50,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 10:40:50,313 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-13 10:40:50,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:40:50,325 INFO L225 Difference]: With dead ends: 102 [2020-10-13 10:40:50,325 INFO L226 Difference]: Without dead ends: 45 [2020-10-13 10:40:50,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:40:50,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-13 10:40:50,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 40. [2020-10-13 10:40:50,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-13 10:40:50,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-10-13 10:40:50,402 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 31 [2020-10-13 10:40:50,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:40:50,403 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-10-13 10:40:50,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 10:40:50,403 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-10-13 10:40:50,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 10:40:50,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:40:50,405 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:40:50,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:40:50,406 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:40:50,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:40:50,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1001067800, now seen corresponding path program 1 times [2020-10-13 10:40:50,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:40:50,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719865847] [2020-10-13 10:40:50,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:40:50,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:50,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:50,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:50,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:51,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:51,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-13 10:40:51,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:40:51,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1040 [2020-10-13 10:40:51,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:40:51,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-13 10:40:51,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 10:40:51,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:51,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:40:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:51,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:51,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:51,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:40:51,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:51,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:40:51,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:51,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:51,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:51,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:51,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:51,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:40:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:51,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:51,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:51,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:51,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:51,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:40:51,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:51,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:51,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:51,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:51,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:51,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 10:40:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:51,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:51,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:51,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 10:40:51,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:51,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 10:40:51,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:51,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:40:51,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:40:51,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 10:40:51,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:51,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:40:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:51,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:51,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:51,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:51,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:51,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 10:40:51,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:51,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:51,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:51,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:51,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:51,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:40:51,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719865847] [2020-10-13 10:40:51,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:40:51,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 10:40:51,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695797189] [2020-10-13 10:40:51,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 10:40:51,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:40:51,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 10:40:51,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:40:51,676 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 5 states. [2020-10-13 10:40:51,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:40:51,894 INFO L93 Difference]: Finished difference Result 63 states and 79 transitions. [2020-10-13 10:40:51,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 10:40:51,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-10-13 10:40:51,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:40:51,897 INFO L225 Difference]: With dead ends: 63 [2020-10-13 10:40:51,897 INFO L226 Difference]: Without dead ends: 50 [2020-10-13 10:40:51,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 10:40:51,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-13 10:40:51,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2020-10-13 10:40:51,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-13 10:40:51,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2020-10-13 10:40:51,921 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 31 [2020-10-13 10:40:51,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:40:51,922 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2020-10-13 10:40:51,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 10:40:51,922 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2020-10-13 10:40:51,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 10:40:51,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:40:51,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:40:51,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 10:40:51,927 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:40:51,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:40:51,927 INFO L82 PathProgramCache]: Analyzing trace with hash 191721174, now seen corresponding path program 1 times [2020-10-13 10:40:51,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:40:51,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538380017] [2020-10-13 10:40:51,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:40:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:51,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:51,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:52,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:52,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-13 10:40:52,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:40:52,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 546 [2020-10-13 10:40:52,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:52,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:40:52,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:40:52,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:40:52,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:52,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:40:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:52,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:52,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:52,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:40:52,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:52,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:40:52,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:52,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:52,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:52,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:52,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:52,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:40:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:52,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:52,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:52,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:52,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:52,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 10:40:52,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:40:52,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 10:40:52,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:40:52,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 10:40:52,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 10:40:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:52,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:52,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:52,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 10:40:52,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:52,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 10:40:52,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:52,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:52,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 10:40:52,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:52,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:52,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:40:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:52,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:52,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:52,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:52,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:52,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 10:40:52,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:52,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:52,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:52,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:52,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:52,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:40:52,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538380017] [2020-10-13 10:40:52,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:40:52,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 10:40:52,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095523796] [2020-10-13 10:40:52,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 10:40:52,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:40:52,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 10:40:52,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:40:52,747 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand 7 states. [2020-10-13 10:40:53,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:40:53,076 INFO L93 Difference]: Finished difference Result 76 states and 94 transitions. [2020-10-13 10:40:53,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 10:40:53,077 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2020-10-13 10:40:53,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:40:53,079 INFO L225 Difference]: With dead ends: 76 [2020-10-13 10:40:53,080 INFO L226 Difference]: Without dead ends: 46 [2020-10-13 10:40:53,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-13 10:40:53,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-13 10:40:53,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2020-10-13 10:40:53,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-13 10:40:53,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2020-10-13 10:40:53,103 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 31 [2020-10-13 10:40:53,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:40:53,103 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2020-10-13 10:40:53,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 10:40:53,104 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2020-10-13 10:40:53,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-13 10:40:53,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:40:53,105 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 10:40:53,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 10:40:53,107 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:40:53,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:40:53,107 INFO L82 PathProgramCache]: Analyzing trace with hash -833744621, now seen corresponding path program 1 times [2020-10-13 10:40:53,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:40:53,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [710856445] [2020-10-13 10:40:53,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:40:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:53,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:53,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:53,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:54,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:54,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:54,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 10:40:54,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 10:40:54,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1721 [2020-10-13 10:40:54,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:54,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:40:54,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:40:54,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 10:40:54,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:54,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:40:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:54,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:54,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:54,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:40:54,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:54,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:40:54,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:54,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:54,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:40:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:54,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:55,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:55,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:40:55,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:55,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 10:40:55,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:55,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:40:55,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 10:40:55,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 10:40:55,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:55,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:40:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:55,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:55,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:55,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:55,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:55,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 10:40:55,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:55,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:40:55,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:55,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:40:55,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:55,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 10:40:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:55,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:55,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:55,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 10:40:55,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:55,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 10:40:55,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:55,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:55,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 10:40:55,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:55,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:55,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:40:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:55,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:55,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:55,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:55,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:55,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 10:40:55,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:55,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:55,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:55,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:55,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:55,167 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 10:40:55,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [710856445] [2020-10-13 10:40:55,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:40:55,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 10:40:55,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136755354] [2020-10-13 10:40:55,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 10:40:55,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:40:55,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 10:40:55,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:40:55,170 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand 8 states. [2020-10-13 10:40:55,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:40:55,409 INFO L93 Difference]: Finished difference Result 80 states and 99 transitions. [2020-10-13 10:40:55,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 10:40:55,409 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2020-10-13 10:40:55,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:40:55,411 INFO L225 Difference]: With dead ends: 80 [2020-10-13 10:40:55,411 INFO L226 Difference]: Without dead ends: 50 [2020-10-13 10:40:55,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-13 10:40:55,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-13 10:40:55,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2020-10-13 10:40:55,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-13 10:40:55,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2020-10-13 10:40:55,421 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 40 [2020-10-13 10:40:55,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:40:55,422 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2020-10-13 10:40:55,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 10:40:55,422 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2020-10-13 10:40:55,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-13 10:40:55,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:40:55,424 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-10-13 10:40:55,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 10:40:55,424 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:40:55,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:40:55,424 INFO L82 PathProgramCache]: Analyzing trace with hash -159145098, now seen corresponding path program 2 times [2020-10-13 10:40:55,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:40:55,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1029943376] [2020-10-13 10:40:55,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:40:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:55,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:55,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:55,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:56,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:56,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 10:40:56,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:40:56,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1390 [2020-10-13 10:40:56,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:56,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:40:56,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 10:40:56,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 10:40:56,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:56,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:40:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:56,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:56,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:56,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:40:56,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:56,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:40:56,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:56,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:56,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:56,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:56,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:56,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:40:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:56,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:57,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:57,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:40:57,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:57,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-13 10:40:57,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:57,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:40:57,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:57,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 10:40:57,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:57,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:40:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:57,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:57,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:57,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:57,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:57,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 10:40:57,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:57,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:40:57,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:57,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:40:57,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:57,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:40:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:57,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:57,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:57,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:57,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:57,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 10:40:57,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:57,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:40:57,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:57,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:40:57,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:57,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:40:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:57,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:57,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:57,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 10:40:57,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:57,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 10:40:57,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:57,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:40:57,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 10:40:57,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 10:40:57,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:57,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:40:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:57,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:57,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:57,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:57,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:57,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 10:40:57,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:57,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:40:57,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:57,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:40:57,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:57,268 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-13 10:40:57,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1029943376] [2020-10-13 10:40:57,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:40:57,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 10:40:57,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862605481] [2020-10-13 10:40:57,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 10:40:57,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:40:57,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 10:40:57,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-13 10:40:57,272 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand 11 states. [2020-10-13 10:40:57,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:40:57,599 INFO L93 Difference]: Finished difference Result 60 states and 74 transitions. [2020-10-13 10:40:57,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 10:40:57,600 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 49 [2020-10-13 10:40:57,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:40:57,601 INFO L225 Difference]: With dead ends: 60 [2020-10-13 10:40:57,602 INFO L226 Difference]: Without dead ends: 46 [2020-10-13 10:40:57,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2020-10-13 10:40:57,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-13 10:40:57,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-13 10:40:57,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-13 10:40:57,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2020-10-13 10:40:57,610 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 49 [2020-10-13 10:40:57,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:40:57,611 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2020-10-13 10:40:57,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 10:40:57,611 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2020-10-13 10:40:57,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-13 10:40:57,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:40:57,613 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-10-13 10:40:57,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 10:40:57,613 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:40:57,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:40:57,613 INFO L82 PathProgramCache]: Analyzing trace with hash 358537395, now seen corresponding path program 1 times [2020-10-13 10:40:57,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:40:57,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1894686491] [2020-10-13 10:40:57,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:40:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:57,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:59,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:59,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-13 10:40:59,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:59,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1428 [2020-10-13 10:40:59,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:59,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 10:40:59,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:40:59,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 10:40:59,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:59,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:40:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:59,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:59,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:59,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:40:59,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:59,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:40:59,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:59,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:59,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:59,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:59,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:59,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:40:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:59,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:59,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:59,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:40:59,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:59,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-13 10:40:59,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:59,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 10:40:59,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:59,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 10:40:59,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:59,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:40:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:59,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:59,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:59,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:59,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:59,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 10:40:59,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:40:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:59,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:40:59,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:59,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:40:59,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:59,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:59,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:59,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:59,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:59,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 10:40:59,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:59,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:40:59,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:59,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 10:40:59,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:59,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:40:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:59,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:00,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:00,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:41:00,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:00,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-13 10:41:00,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:00,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:41:00,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:00,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 10:41:00,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:00,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:41:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:00,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:00,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:00,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:00,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:00,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 10:41:00,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:00,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 10:41:00,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:00,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:41:00,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:01,342 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 37 [2020-10-13 10:41:01,369 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 10:41:01,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1894686491] [2020-10-13 10:41:01,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:41:01,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-13 10:41:01,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562857404] [2020-10-13 10:41:01,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-13 10:41:01,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:41:01,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-13 10:41:01,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2020-10-13 10:41:01,372 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand 24 states. [2020-10-13 10:41:03,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:41:03,114 INFO L93 Difference]: Finished difference Result 69 states and 85 transitions. [2020-10-13 10:41:03,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 10:41:03,115 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 50 [2020-10-13 10:41:03,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:41:03,116 INFO L225 Difference]: With dead ends: 69 [2020-10-13 10:41:03,117 INFO L226 Difference]: Without dead ends: 67 [2020-10-13 10:41:03,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=131, Invalid=1201, Unknown=0, NotChecked=0, Total=1332 [2020-10-13 10:41:03,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-13 10:41:03,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 54. [2020-10-13 10:41:03,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-13 10:41:03,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2020-10-13 10:41:03,128 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 50 [2020-10-13 10:41:03,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:41:03,129 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2020-10-13 10:41:03,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-13 10:41:03,129 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2020-10-13 10:41:03,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-13 10:41:03,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:41:03,130 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-10-13 10:41:03,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 10:41:03,131 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:41:03,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:41:03,131 INFO L82 PathProgramCache]: Analyzing trace with hash -450809231, now seen corresponding path program 1 times [2020-10-13 10:41:03,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:41:03,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783885796] [2020-10-13 10:41:03,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:41:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:03,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:03,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:04,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:04,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-13 10:41:04,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:41:04,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1368 [2020-10-13 10:41:04,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:04,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 10:41:04,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:41:04,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 10:41:04,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:04,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:41:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:04,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:04,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:04,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:41:04,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:04,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:41:04,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:04,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:04,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:04,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:04,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:04,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:41:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:04,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:04,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:04,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:41:04,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:04,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-13 10:41:04,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:04,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:41:04,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:04,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 10:41:04,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:04,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:41:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:04,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:04,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:04,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:04,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:04,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 10:41:04,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:04,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:04,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:04,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:41:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:04,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:04,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:04,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:04,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:04,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 10:41:04,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:41:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:04,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:41:04,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:04,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:41:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:04,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:05,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:05,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:41:05,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:05,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-13 10:41:05,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:05,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 10:41:05,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:05,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 10:41:05,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:05,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:41:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:05,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:05,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:05,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:05,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:05,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 10:41:05,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:41:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:41:05,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:05,451 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 10:41:05,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783885796] [2020-10-13 10:41:05,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:41:05,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-13 10:41:05,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899113705] [2020-10-13 10:41:05,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 10:41:05,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:41:05,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 10:41:05,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2020-10-13 10:41:05,455 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand 19 states. [2020-10-13 10:41:06,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:41:06,483 INFO L93 Difference]: Finished difference Result 67 states and 83 transitions. [2020-10-13 10:41:06,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 10:41:06,484 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 50 [2020-10-13 10:41:06,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:41:06,485 INFO L225 Difference]: With dead ends: 67 [2020-10-13 10:41:06,485 INFO L226 Difference]: Without dead ends: 54 [2020-10-13 10:41:06,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2020-10-13 10:41:06,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-13 10:41:06,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-13 10:41:06,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-13 10:41:06,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2020-10-13 10:41:06,495 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 50 [2020-10-13 10:41:06,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:41:06,495 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2020-10-13 10:41:06,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 10:41:06,496 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2020-10-13 10:41:06,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-13 10:41:06,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:41:06,497 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-10-13 10:41:06,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 10:41:06,498 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:41:06,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:41:06,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1770297193, now seen corresponding path program 1 times [2020-10-13 10:41:06,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:41:06,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1789850289] [2020-10-13 10:41:06,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:41:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:06,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:06,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:07,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:07,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:08,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:10,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:11,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:11,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-13 10:41:11,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 10:41:11,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 10:41:11,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 10:41:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 10:41:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 10:41:11,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:11,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:41:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:11,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:11,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:11,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:41:11,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:11,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:41:11,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:11,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:11,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:11,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:11,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:11,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:41:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:11,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:11,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:11,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:41:11,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:11,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 10:41:11,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:11,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:11,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:11,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:11,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:11,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:41:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:11,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:11,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:11,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:11,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:11,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:41:11,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:11,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:11,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:11,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:11,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:11,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:41:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:11,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:11,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:11,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:11,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:11,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:41:11,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:11,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:11,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:41:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:11,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:11,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:12,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:12,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:41:12,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:41:12,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 394 [2020-10-13 10:41:12,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:12,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 10:41:12,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:12,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 10:41:12,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:12,451 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2020-10-13 10:41:12,690 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2020-10-13 10:41:12,847 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2020-10-13 10:41:12,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:41:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:12,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:12,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:12,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:12,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:12,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 10:41:12,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:12,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:41:12,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:12,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:41:12,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:13,021 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-13 10:41:13,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1789850289] [2020-10-13 10:41:13,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:41:13,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 10:41:13,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025186944] [2020-10-13 10:41:13,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 10:41:13,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:41:13,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 10:41:13,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-13 10:41:13,024 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand 14 states. [2020-10-13 10:41:13,688 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2020-10-13 10:41:13,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:41:13,919 INFO L93 Difference]: Finished difference Result 74 states and 89 transitions. [2020-10-13 10:41:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 10:41:13,920 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 51 [2020-10-13 10:41:13,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:41:13,922 INFO L225 Difference]: With dead ends: 74 [2020-10-13 10:41:13,922 INFO L226 Difference]: Without dead ends: 67 [2020-10-13 10:41:13,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2020-10-13 10:41:13,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-13 10:41:13,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 54. [2020-10-13 10:41:13,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-13 10:41:13,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2020-10-13 10:41:13,944 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 51 [2020-10-13 10:41:13,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:41:13,944 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2020-10-13 10:41:13,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 10:41:13,945 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2020-10-13 10:41:13,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-13 10:41:13,946 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:41:13,946 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-10-13 10:41:13,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 10:41:13,946 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:41:13,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:41:13,946 INFO L82 PathProgramCache]: Analyzing trace with hash -93116136, now seen corresponding path program 2 times [2020-10-13 10:41:13,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:41:13,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956577035] [2020-10-13 10:41:13,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:41:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:13,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:14,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:14,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:14,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-13 10:41:14,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:41:14,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 551 [2020-10-13 10:41:14,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:14,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 10:41:14,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 10:41:14,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 10:41:14,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:14,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:41:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:14,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:14,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:14,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:41:14,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:14,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:41:14,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:14,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:14,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:14,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:14,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:14,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:41:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:14,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:14,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:14,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:41:14,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:14,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-13 10:41:14,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:14,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:41:14,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:14,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 10:41:14,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:14,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:41:14,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:14,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:14,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:14,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:14,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:14,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 10:41:14,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:14,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:41:14,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:14,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:41:14,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:14,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:41:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:14,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:14,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:14,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:14,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:14,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 10:41:14,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:14,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:41:14,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:14,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:41:14,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:14,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:41:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:14,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:14,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:14,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 10:41:14,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:14,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 10:41:14,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:14,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:41:14,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 10:41:14,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 10:41:14,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:14,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:41:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:14,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:14,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:14,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:14,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:14,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 10:41:14,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:41:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:41:14,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:14,998 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-13 10:41:15,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956577035] [2020-10-13 10:41:15,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:41:15,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 10:41:15,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741585543] [2020-10-13 10:41:15,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 10:41:15,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:41:15,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 10:41:15,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-10-13 10:41:15,003 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 13 states. [2020-10-13 10:41:15,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:41:15,444 INFO L93 Difference]: Finished difference Result 70 states and 86 transitions. [2020-10-13 10:41:15,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 10:41:15,444 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 51 [2020-10-13 10:41:15,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:41:15,445 INFO L225 Difference]: With dead ends: 70 [2020-10-13 10:41:15,446 INFO L226 Difference]: Without dead ends: 55 [2020-10-13 10:41:15,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2020-10-13 10:41:15,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-13 10:41:15,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2020-10-13 10:41:15,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-13 10:41:15,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2020-10-13 10:41:15,464 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 51 [2020-10-13 10:41:15,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:41:15,465 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2020-10-13 10:41:15,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 10:41:15,465 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2020-10-13 10:41:15,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-13 10:41:15,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:41:15,466 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-10-13 10:41:15,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 10:41:15,466 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:41:15,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:41:15,467 INFO L82 PathProgramCache]: Analyzing trace with hash 957077198, now seen corresponding path program 1 times [2020-10-13 10:41:15,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:41:15,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168905624] [2020-10-13 10:41:15,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:41:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:15,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:15,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:15,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:15,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:16,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:17,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:17,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-13 10:41:17,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 10:41:17,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2099 [2020-10-13 10:41:17,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:17,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 10:41:17,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 10:41:17,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 10:41:17,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:17,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:41:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:17,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:17,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:17,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:41:17,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:17,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:41:17,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:17,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:17,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:17,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:17,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:17,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:41:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:17,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:17,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:17,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:41:17,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:17,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 10:41:17,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:17,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:17,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:17,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:17,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:17,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:41:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:17,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:17,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:17,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:17,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:17,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:41:17,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:17,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:17,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:17,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:17,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:17,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:41:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:17,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:17,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:17,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:17,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:17,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:41:17,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:17,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:17,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:17,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:17,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:17,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:41:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:17,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:17,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:17,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:41:17,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:17,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 10:41:17,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:17,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:41:17,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:17,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 10:41:17,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:17,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:41:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:17,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:17,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:17,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:17,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:17,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 10:41:17,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:17,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:41:17,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:17,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:41:17,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:17,870 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-13 10:41:17,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1168905624] [2020-10-13 10:41:17,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:41:17,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 10:41:17,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048262744] [2020-10-13 10:41:17,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 10:41:17,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:41:17,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 10:41:17,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-13 10:41:17,886 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand 10 states. [2020-10-13 10:41:18,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:41:18,113 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-10-13 10:41:18,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 10:41:18,113 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2020-10-13 10:41:18,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:41:18,115 INFO L225 Difference]: With dead ends: 58 [2020-10-13 10:41:18,115 INFO L226 Difference]: Without dead ends: 49 [2020-10-13 10:41:18,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-13 10:41:18,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-13 10:41:18,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2020-10-13 10:41:18,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-13 10:41:18,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2020-10-13 10:41:18,124 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 52 [2020-10-13 10:41:18,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:41:18,125 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2020-10-13 10:41:18,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 10:41:18,125 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2020-10-13 10:41:18,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-13 10:41:18,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:41:18,126 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-10-13 10:41:18,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 10:41:18,127 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:41:18,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:41:18,127 INFO L82 PathProgramCache]: Analyzing trace with hash -395432484, now seen corresponding path program 1 times [2020-10-13 10:41:18,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:41:18,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1848520010] [2020-10-13 10:41:18,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:41:18,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:18,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:19,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:19,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-13 10:41:19,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:19,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1574 [2020-10-13 10:41:19,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:19,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 10:41:19,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:41:19,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 10:41:19,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:20,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:41:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:20,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:20,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:20,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:41:20,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:20,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:41:20,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:20,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:20,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:41:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:20,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:20,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:20,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:41:20,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:20,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-13 10:41:20,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:20,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:41:20,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:20,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 10:41:20,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:20,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:41:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:20,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:20,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:20,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:20,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:20,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:41:20,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:20,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:20,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:20,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:20,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:20,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:41:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:20,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:20,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:20,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:20,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:20,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 10:41:20,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:20,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:41:20,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:20,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:41:20,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:20,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:41:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:20,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:20,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:20,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:41:20,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:20,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-10-13 10:41:20,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:20,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 10:41:20,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:20,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 10:41:20,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:21,046 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-13 10:41:21,534 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2020-10-13 10:41:21,882 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 66 [2020-10-13 10:41:22,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:41:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:22,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:22,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:22,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:22,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:22,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 10:41:22,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:22,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:41:22,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:22,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:41:22,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:22,221 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 10:41:22,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1848520010] [2020-10-13 10:41:22,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:41:22,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-13 10:41:22,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167594883] [2020-10-13 10:41:22,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-13 10:41:22,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:41:22,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-13 10:41:22,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=548, Unknown=0, NotChecked=0, Total=600 [2020-10-13 10:41:22,225 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand 25 states. [2020-10-13 10:41:23,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:41:23,517 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2020-10-13 10:41:23,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 10:41:23,517 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 53 [2020-10-13 10:41:23,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:41:23,519 INFO L225 Difference]: With dead ends: 49 [2020-10-13 10:41:23,519 INFO L226 Difference]: Without dead ends: 47 [2020-10-13 10:41:23,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=124, Invalid=1208, Unknown=0, NotChecked=0, Total=1332 [2020-10-13 10:41:23,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-13 10:41:23,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-13 10:41:23,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-13 10:41:23,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2020-10-13 10:41:23,528 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 53 [2020-10-13 10:41:23,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:41:23,529 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2020-10-13 10:41:23,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-13 10:41:23,529 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-10-13 10:41:23,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-13 10:41:23,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:41:23,530 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-10-13 10:41:23,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 10:41:23,530 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:41:23,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:41:23,531 INFO L82 PathProgramCache]: Analyzing trace with hash -2053449651, now seen corresponding path program 1 times [2020-10-13 10:41:23,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:41:23,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671998637] [2020-10-13 10:41:23,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:41:23,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:23,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:24,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:25,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:25,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 10:41:25,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:41:25,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2055 [2020-10-13 10:41:25,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:25,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 10:41:25,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:41:25,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 10:41:25,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:25,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:41:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:25,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:25,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:25,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:41:25,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:25,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:41:25,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:25,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:25,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:41:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:25,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:25,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:25,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:41:25,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:25,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-13 10:41:25,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:25,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 10:41:25,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:25,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 10:41:25,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:26,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:41:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:26,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:26,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:26,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:26,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:26,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 10:41:26,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:26,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:41:26,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:26,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:41:26,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:26,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:41:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:26,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:26,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:26,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:26,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:26,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 10:41:26,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:26,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:41:26,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:26,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:41:26,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:26,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:41:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:26,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:26,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:26,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:41:26,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:26,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-13 10:41:26,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:26,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:41:26,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:26,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 10:41:26,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:27,057 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2020-10-13 10:41:27,405 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2020-10-13 10:41:27,847 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2020-10-13 10:41:28,621 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2020-10-13 10:41:28,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:41:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:28,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:28,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:28,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:28,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:28,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 10:41:28,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:28,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 10:41:28,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:28,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:41:28,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:29,025 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 10:41:29,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671998637] [2020-10-13 10:41:29,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:41:29,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-13 10:41:29,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557314453] [2020-10-13 10:41:29,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-13 10:41:29,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:41:29,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-13 10:41:29,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=754, Unknown=0, NotChecked=0, Total=812 [2020-10-13 10:41:29,030 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand 29 states. [2020-10-13 10:41:31,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:41:31,145 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2020-10-13 10:41:31,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-13 10:41:31,146 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 55 [2020-10-13 10:41:31,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:41:31,147 INFO L225 Difference]: With dead ends: 55 [2020-10-13 10:41:31,147 INFO L226 Difference]: Without dead ends: 52 [2020-10-13 10:41:31,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=136, Invalid=1586, Unknown=0, NotChecked=0, Total=1722 [2020-10-13 10:41:31,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-13 10:41:31,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-10-13 10:41:31,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-13 10:41:31,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-10-13 10:41:31,158 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 55 [2020-10-13 10:41:31,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:41:31,159 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-10-13 10:41:31,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-13 10:41:31,159 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-10-13 10:41:31,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-13 10:41:31,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:41:31,160 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-10-13 10:41:31,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 10:41:31,160 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:41:31,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:41:31,161 INFO L82 PathProgramCache]: Analyzing trace with hash -2053447977, now seen corresponding path program 1 times [2020-10-13 10:41:31,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:41:31,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63192489] [2020-10-13 10:41:31,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:41:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:31,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:31,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:34,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:36,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:36,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 10:41:36,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:41:36,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 10:41:36,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:36,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 10:41:36,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:41:36,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 10:41:36,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:36,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:41:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:36,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:36,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:36,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:41:36,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:36,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:41:36,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:36,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:36,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:36,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:36,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:36,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:41:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:36,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:36,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:36,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:41:36,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:36,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-13 10:41:36,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:36,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 10:41:36,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:36,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 10:41:36,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:36,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:41:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:36,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:36,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:36,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:36,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:36,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 10:41:36,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:36,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:41:36,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:36,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 10:41:36,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:36,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:41:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:36,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:37,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:37,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:37,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:37,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 10:41:37,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:37,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:41:37,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:37,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:41:37,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:37,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:41:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:37,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:37,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:37,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:41:37,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:37,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-13 10:41:37,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:37,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:41:37,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:37,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 10:41:37,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:38,089 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2020-10-13 10:41:38,590 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2020-10-13 10:41:39,065 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2020-10-13 10:41:39,831 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2020-10-13 10:41:40,524 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-10-13 10:41:40,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:41:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:40,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:40,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:40,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:40,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:40,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 10:41:40,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:40,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 10:41:40,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:40,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:41:40,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:40,986 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2020-10-13 10:41:41,020 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 10:41:41,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [63192489] [2020-10-13 10:41:41,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:41:41,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-13 10:41:41,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104740366] [2020-10-13 10:41:41,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-13 10:41:41,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:41:41,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-13 10:41:41,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=809, Unknown=0, NotChecked=0, Total=870 [2020-10-13 10:41:41,023 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 30 states. [2020-10-13 10:41:41,913 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2020-10-13 10:41:44,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:41:44,071 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2020-10-13 10:41:44,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 10:41:44,072 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 55 [2020-10-13 10:41:44,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:41:44,073 INFO L225 Difference]: With dead ends: 55 [2020-10-13 10:41:44,073 INFO L226 Difference]: Without dead ends: 53 [2020-10-13 10:41:44,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=143, Invalid=1749, Unknown=0, NotChecked=0, Total=1892 [2020-10-13 10:41:44,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-13 10:41:44,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2020-10-13 10:41:44,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-13 10:41:44,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2020-10-13 10:41:44,092 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 55 [2020-10-13 10:41:44,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:41:44,092 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2020-10-13 10:41:44,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-13 10:41:44,093 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2020-10-13 10:41:44,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-13 10:41:44,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:41:44,093 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-10-13 10:41:44,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 10:41:44,094 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:41:44,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:41:44,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1973471608, now seen corresponding path program 1 times [2020-10-13 10:41:44,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:41:44,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259534636] [2020-10-13 10:41:44,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:41:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:44,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:44,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:44,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:44,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:45,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:45,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 10:41:45,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 10:41:45,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1074 [2020-10-13 10:41:45,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:45,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 10:41:45,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 10:41:45,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 10:41:45,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:45,358 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 22 [2020-10-13 10:41:45,537 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 33 [2020-10-13 10:41:45,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:41:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:45,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:45,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:45,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:41:45,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:45,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:41:45,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:45,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:45,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:45,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:45,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:41:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:45,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:45,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:45,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:45,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:41:45,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:41:45,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-13 10:41:45,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:45,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 10:41:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 10:41:45,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:46,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:41:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:46,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:46,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:46,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:46,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:46,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:41:46,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:46,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:41:46,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:46,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:41:46,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:46,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:41:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:46,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:46,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:46,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:46,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:46,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:41:46,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:46,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:41:46,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:46,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:41:46,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:46,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:41:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:46,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:46,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:46,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:41:46,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:46,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 10:41:46,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:46,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:41:46,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:46,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 10:41:46,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:46,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:41:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:46,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:46,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:46,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:46,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:46,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:41:46,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:46,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:46,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:46,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:46,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:46,116 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-13 10:41:46,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259534636] [2020-10-13 10:41:46,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:41:46,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 10:41:46,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616188964] [2020-10-13 10:41:46,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 10:41:46,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:41:46,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 10:41:46,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-10-13 10:41:46,118 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 16 states. [2020-10-13 10:41:46,618 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 22 [2020-10-13 10:41:46,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:41:46,927 INFO L93 Difference]: Finished difference Result 66 states and 73 transitions. [2020-10-13 10:41:46,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 10:41:46,930 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 57 [2020-10-13 10:41:46,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:41:46,931 INFO L225 Difference]: With dead ends: 66 [2020-10-13 10:41:46,931 INFO L226 Difference]: Without dead ends: 63 [2020-10-13 10:41:46,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2020-10-13 10:41:46,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-13 10:41:46,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 50. [2020-10-13 10:41:46,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-13 10:41:46,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-10-13 10:41:46,942 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 57 [2020-10-13 10:41:46,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:41:46,943 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-10-13 10:41:46,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 10:41:46,943 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-10-13 10:41:46,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-13 10:41:46,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:41:46,944 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-10-13 10:41:46,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 10:41:46,944 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:41:46,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:41:46,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1973469934, now seen corresponding path program 1 times [2020-10-13 10:41:46,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:41:46,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411987613] [2020-10-13 10:41:46,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:41:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:46,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:48,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:48,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 10:41:48,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:48,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1487 [2020-10-13 10:41:48,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:48,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 10:41:48,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:41:48,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-13 10:41:48,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:48,900 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 35 [2020-10-13 10:41:49,033 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 31 [2020-10-13 10:41:49,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:41:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:49,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:49,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:49,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:41:49,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:49,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:41:49,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:49,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:49,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:49,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:49,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:49,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:41:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:49,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:49,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:49,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:41:49,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:49,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-13 10:41:49,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:49,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:41:49,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:49,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 10:41:49,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:49,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:41:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:49,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:49,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:49,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:49,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:49,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 10:41:49,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:49,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:41:49,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:49,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:41:49,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:50,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:41:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:50,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:50,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:50,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:50,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:50,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 10:41:50,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:50,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 10:41:50,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:50,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:41:50,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:50,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:41:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:50,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:50,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:50,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:41:50,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:50,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-13 10:41:50,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:50,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 10:41:50,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:50,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 10:41:50,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:53,501 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 45 [2020-10-13 10:42:01,583 WARN L193 SmtUtils]: Spent 7.42 s on a formula simplification. DAG size of input: 301 DAG size of output: 151 [2020-10-13 10:42:15,573 WARN L193 SmtUtils]: Spent 12.96 s on a formula simplification. DAG size of input: 417 DAG size of output: 226 [2020-10-13 10:42:16,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:42:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:16,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:16,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:16,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:42:16,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:16,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 10:42:16,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:16,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 10:42:16,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:42:16,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:42:16,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:42:17,213 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 10:42:17,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411987613] [2020-10-13 10:42:17,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:42:17,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-13 10:42:17,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076317355] [2020-10-13 10:42:17,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-13 10:42:17,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:42:17,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-13 10:42:17,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=909, Unknown=0, NotChecked=0, Total=992 [2020-10-13 10:42:17,216 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 32 states. [2020-10-13 10:42:20,936 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification that was a NOOP. DAG size: 220 [2020-10-13 10:42:25,427 WARN L193 SmtUtils]: Spent 3.41 s on a formula simplification that was a NOOP. DAG size: 227 [2020-10-13 10:42:30,304 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-13 10:42:30,905 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-13 10:42:31,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:42:31,619 INFO L93 Difference]: Finished difference Result 77 states and 85 transitions. [2020-10-13 10:42:31,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-13 10:42:31,622 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 57 [2020-10-13 10:42:31,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:42:31,623 INFO L225 Difference]: With dead ends: 77 [2020-10-13 10:42:31,623 INFO L226 Difference]: Without dead ends: 58 [2020-10-13 10:42:31,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 34.8s TimeCoverageRelationStatistics Valid=181, Invalid=1981, Unknown=0, NotChecked=0, Total=2162 [2020-10-13 10:42:31,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-13 10:42:31,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-13 10:42:31,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-13 10:42:31,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2020-10-13 10:42:31,636 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 57 [2020-10-13 10:42:31,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:42:31,636 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2020-10-13 10:42:31,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-13 10:42:31,636 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2020-10-13 10:42:31,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-13 10:42:31,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:42:31,643 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-10-13 10:42:31,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 10:42:31,644 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:42:31,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:42:31,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1781161231, now seen corresponding path program 2 times [2020-10-13 10:42:31,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:42:31,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259744145] [2020-10-13 10:42:31,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:42:31,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:31,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:31,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:32,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:33,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:36,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:36,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 10:42:36,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 10:42:36,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-13 10:42:36,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:42:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:42:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 10:42:36,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:42:36,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:42:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:36,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:36,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:36,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:42:36,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:36,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:42:36,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:36,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:42:36,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:42:36,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:42:36,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:42:36,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:42:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:36,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:36,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:36,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-13 10:42:36,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:36,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-13 10:42:36,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:36,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:42:36,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 10:42:36,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 10:42:36,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:42:36,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:42:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:36,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:36,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:36,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:42:36,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:36,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 10:42:36,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:36,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:42:36,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:42:36,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:42:36,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:42:36,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:42:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:36,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:37,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:37,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:42:37,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:37,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 10:42:37,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:37,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:42:37,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:42:37,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:42:37,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:42:37,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 10:42:37,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:37,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:37,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:37,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:42:37,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:37,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 10:42:37,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:37,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:42:37,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:42:37,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:42:37,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:42:37,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 10:42:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:37,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:37,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:37,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:42:37,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:37,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 10:42:37,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:37,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:42:37,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 10:42:37,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:42:37,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:42:37,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:42:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:37,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:37,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:37,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:42:37,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:37,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:42:37,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:37,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:42:37,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:42:37,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:42:37,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:42:37,105 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-13 10:42:37,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259744145] [2020-10-13 10:42:37,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:42:37,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-13 10:42:37,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833569149] [2020-10-13 10:42:37,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 10:42:37,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:42:37,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 10:42:37,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-13 10:42:37,121 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 9 states. [2020-10-13 10:42:37,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:42:37,386 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2020-10-13 10:42:37,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 10:42:37,387 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-10-13 10:42:37,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:42:37,388 INFO L225 Difference]: With dead ends: 59 [2020-10-13 10:42:37,388 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 10:42:37,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-13 10:42:37,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 10:42:37,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 10:42:37,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 10:42:37,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 10:42:37,390 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2020-10-13 10:42:37,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:42:37,390 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 10:42:37,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 10:42:37,390 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 10:42:37,390 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 10:42:37,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 10:42:37,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 10:42:37,568 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 222 [2020-10-13 10:42:37,707 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 267 [2020-10-13 10:42:43,194 WARN L193 SmtUtils]: Spent 5.12 s on a formula simplification. DAG size of input: 221 DAG size of output: 146 [2020-10-13 10:42:46,359 WARN L193 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 264 DAG size of output: 197 [2020-10-13 10:42:46,705 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2020-10-13 10:42:47,509 WARN L193 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 136 [2020-10-13 10:42:48,323 WARN L193 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 156 [2020-10-13 10:42:48,496 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2020-10-13 10:42:48,923 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 57 [2020-10-13 10:42:48,927 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 10:42:48,927 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-13 10:42:48,927 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 10:42:48,927 INFO L271 CegarLoopResult]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2020-10-13 10:42:48,927 INFO L268 CegarLoopResult]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2020-10-13 10:42:48,927 INFO L271 CegarLoopResult]: At program point L562(line 562) the Hoare annotation is: true [2020-10-13 10:42:48,928 INFO L268 CegarLoopResult]: For program point sll_destroyEXIT(lines 582 588) no Hoare annotation was computed. [2020-10-13 10:42:48,928 INFO L271 CegarLoopResult]: At program point L583-2(lines 583 587) the Hoare annotation is: true [2020-10-13 10:42:48,928 INFO L268 CegarLoopResult]: For program point L583-3(lines 582 588) no Hoare annotation was computed. [2020-10-13 10:42:48,928 INFO L264 CegarLoopResult]: At program point sll_destroyENTRY(lines 582 588) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-10-13 10:42:48,928 INFO L268 CegarLoopResult]: For program point __bswap_32ENTRY(lines 64 68) no Hoare annotation was computed. [2020-10-13 10:42:48,928 INFO L268 CegarLoopResult]: For program point __bswap_32FINAL(lines 64 68) no Hoare annotation was computed. [2020-10-13 10:42:48,928 INFO L268 CegarLoopResult]: For program point __bswap_32EXIT(lines 64 68) no Hoare annotation was computed. [2020-10-13 10:42:48,929 INFO L264 CegarLoopResult]: At program point L576(line 576) the Hoare annotation is: (let ((.cse1 (= |sll_create_#in~data| sll_create_~data)) (.cse0 (= sll_create_~head~0.base 0)) (.cse2 (= sll_create_~head~0.offset 0))) (or (not (<= |sll_create_#in~len| 2)) (not (<= 2 |sll_create_#in~len|)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) .cse0 (= |#memory_int| |old(#memory_int)|) .cse1 (= |sll_create_#in~len| sll_create_~len) .cse2 (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) (and (<= (+ sll_create_~head~0.base 1) |#StackHeapBarrier|) (= (select (select |#memory_$Pointer$.base| sll_create_~head~0.base) 4) 0) .cse1 (not .cse0) (= |sll_create_#in~data| (select (select |#memory_int| sll_create_~head~0.base) sll_create_~head~0.offset)) (<= (+ sll_create_~len 1) |sll_create_#in~len|) (= (select |#valid| sll_create_~head~0.base) 1) .cse2 (<= |sll_create_#in~len| (+ sll_create_~len 2)) (= (select (select |#memory_$Pointer$.offset| sll_create_~head~0.base) 4) 0)))) [2020-10-13 10:42:48,929 INFO L268 CegarLoopResult]: For program point L576-1(line 576) no Hoare annotation was computed. [2020-10-13 10:42:48,929 INFO L268 CegarLoopResult]: For program point sll_createEXIT(lines 573 581) no Hoare annotation was computed. [2020-10-13 10:42:48,930 INFO L268 CegarLoopResult]: For program point L575-2(lines 575 579) no Hoare annotation was computed. [2020-10-13 10:42:48,930 INFO L264 CegarLoopResult]: At program point L575-3(lines 575 579) the Hoare annotation is: (let ((.cse13 (select |#memory_$Pointer$.base| sll_create_~head~0.base)) (.cse9 (select |#memory_$Pointer$.offset| sll_create_~head~0.base)) (.cse12 (select (select |#memory_int| sll_create_~head~0.base) sll_create_~head~0.offset)) (.cse8 (= sll_create_~head~0.base 0))) (let ((.cse1 (<= (+ sll_create_~head~0.base 1) |#StackHeapBarrier|)) (.cse3 (not .cse8)) (.cse5 (= (select |#valid| sll_create_~head~0.base) 1)) (.cse6 (= sll_create_~head~0.offset 0)) (.cse0 (= .cse12 sll_create_~data)) (.cse4 (= |sll_create_#in~data| .cse12)) (.cse7 (select .cse9 4)) (.cse2 (select .cse13 4))) (or (and .cse0 .cse1 (= |sll_create_#in~len| (+ sll_create_~len 1)) (= .cse2 0) .cse3 .cse4 .cse5 .cse6 (= .cse7 0)) (not (<= |sll_create_#in~len| 2)) (not (<= 2 |sll_create_#in~len|)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) .cse8 (= |#memory_int| |old(#memory_int)|) (= |sll_create_#in~data| sll_create_~data) (= |sll_create_#in~len| sll_create_~len) .cse6 (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) (let ((.cse10 (+ sll_create_~head~0.offset 4))) (let ((.cse11 (select .cse13 .cse10))) (and .cse1 .cse3 (= (select .cse9 .cse10) sll_create_~head~0.offset) (not (= .cse11 0)) .cse5 .cse6 (= (select (select |#memory_$Pointer$.offset| .cse2) 4) 0) .cse0 (<= (+ .cse11 1) |#StackHeapBarrier|) .cse4 (= (select (select |#memory_$Pointer$.base| .cse2) 4) 0) (<= (+ sll_create_~len 2) |sll_create_#in~len|) (= (select (select |#memory_int| .cse2) .cse7) .cse12) (= (select |#valid| .cse2) 1))))))) [2020-10-13 10:42:48,930 INFO L268 CegarLoopResult]: For program point L575-4(lines 575 579) no Hoare annotation was computed. [2020-10-13 10:42:48,930 INFO L264 CegarLoopResult]: At program point sll_createENTRY(lines 573 581) the Hoare annotation is: (or (not (<= |sll_create_#in~len| 2)) (not (<= 2 |sll_create_#in~len|)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|))) [2020-10-13 10:42:48,930 INFO L268 CegarLoopResult]: For program point sll_createFINAL(lines 573 581) no Hoare annotation was computed. [2020-10-13 10:42:48,930 INFO L268 CegarLoopResult]: For program point __bswap_64ENTRY(lines 69 73) no Hoare annotation was computed. [2020-10-13 10:42:48,931 INFO L268 CegarLoopResult]: For program point __bswap_64FINAL(lines 69 73) no Hoare annotation was computed. [2020-10-13 10:42:48,931 INFO L268 CegarLoopResult]: For program point __bswap_64EXIT(lines 69 73) no Hoare annotation was computed. [2020-10-13 10:42:48,931 INFO L268 CegarLoopResult]: For program point L598-1(lines 598 602) no Hoare annotation was computed. [2020-10-13 10:42:48,931 INFO L264 CegarLoopResult]: At program point sll_insertENTRY(lines 589 604) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-13 10:42:48,931 INFO L264 CegarLoopResult]: At program point L593-2(lines 593 597) the Hoare annotation is: (let ((.cse20 (@diff |old(#memory_int)| |#memory_int|))) (let ((.cse16 (store |old(#memory_int)| .cse20 (select |#memory_int| .cse20))) (.cse33 (select |old(#memory_$Pointer$.offset)| |sll_insert_#in~head.base|))) (let ((.cse45 (@diff |old(#memory_$Pointer$.offset)| |#memory_$Pointer$.offset|)) (.cse18 (select (select |old(#memory_$Pointer$.base)| |sll_insert_#in~head.base|) |sll_insert_#in~head.offset|)) (.cse19 (select .cse33 |sll_insert_#in~head.offset|)) (.cse21 (= |#memory_int| |old(#memory_int)|)) (.cse22 (= .cse16 |#memory_int|)) (.cse11 (not (= sll_insert_~new_node~0.base 0))) (.cse12 (= sll_insert_~new_node~0.base |sll_insert_#in~head.base|)) (.cse30 (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (.cse29 (@diff |old(#memory_$Pointer$.base)| |#memory_$Pointer$.base|))) (let ((.cse8 (select |#memory_$Pointer$.offset| |sll_insert_#in~head.base|)) (.cse9 (select (select |#memory_$Pointer$.base| |sll_insert_#in~head.base|) |sll_insert_#in~head.offset|)) (.cse0 (= |#memory_$Pointer$.base| (store |old(#memory_$Pointer$.base)| .cse29 (select |#memory_$Pointer$.base| .cse29)))) (.cse1 (or (= .cse29 sll_insert_~new_node~0.base) .cse30)) (.cse26 (select |#memory_int| sll_insert_~new_node~0.base)) (.cse5 (= sll_insert_~snd_to_last~0.offset 0)) (.cse7 (= sll_insert_~snd_to_last~0.base 0)) (.cse13 (not (= (+ sll_insert_~new_node~0.offset 4) |sll_insert_#in~head.offset|))) (.cse10 (not .cse12)) (.cse2 (and (or (= .cse20 sll_insert_~new_node~0.base) .cse21) .cse22 .cse11)) (.cse32 (not (= .cse19 0))) (.cse37 (= .cse18 |sll_insert_#in~head.base|)) (.cse31 (<= (+ sll_insert_~index 1) |sll_insert_#in~index|)) (.cse6 (= sll_insert_~head.base |sll_insert_#in~head.base|)) (.cse15 (= |#memory_$Pointer$.offset| (store |old(#memory_$Pointer$.offset)| .cse45 (select |#memory_$Pointer$.offset| .cse45)))) (.cse23 (= (select |old(#valid)| sll_insert_~new_node~0.base) 0)) (.cse3 (<= (+ |sll_insert_#in~head.base| 1) |#StackHeapBarrier|)) (.cse24 (<= (+ sll_insert_~new_node~0.base 1) |#StackHeapBarrier|)) (.cse25 (= sll_insert_~new_node~0.offset 0)) (.cse27 (= sll_insert_~head.offset |sll_insert_#in~head.offset|)) (.cse28 (or (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= .cse45 sll_insert_~new_node~0.base)))) (or (let ((.cse14 (= sll_insert_~last~0.offset 0))) (let ((.cse4 (not .cse14))) (and .cse0 .cse1 (or .cse2 .cse3 .cse4) .cse5 .cse6 .cse7 (or (and (= (select .cse8 |sll_insert_#in~head.offset|) sll_insert_~last~0.offset) (= .cse9 sll_insert_~last~0.base) .cse10 .cse11) (and .cse12 (= (select (select |#memory_$Pointer$.base| sll_insert_~new_node~0.base) |sll_insert_#in~head.offset|) sll_insert_~last~0.base) (or (not (= sll_insert_~new_node~0.base sll_insert_~last~0.base)) .cse11) .cse13 (= (select (select |#memory_$Pointer$.offset| sll_insert_~new_node~0.base) |sll_insert_#in~head.offset|) sll_insert_~last~0.offset)) (and (= 0 sll_insert_~last~0.base) .cse14)) (= sll_insert_~index |sll_insert_#in~index|) .cse15 (or (let ((.cse17 (@diff .cse16 |#memory_int|))) (and (= |#memory_int| (store .cse16 .cse17 (select |#memory_int| .cse17))) (= .cse18 sll_insert_~last~0.base) (= .cse19 sll_insert_~last~0.offset) (or (not (= (select |old(#valid)| .cse20) 1)) .cse21) (or (not (= (select |old(#valid)| .cse17) 1)) .cse22))) .cse3) .cse23 .cse24 .cse25 (or .cse3 (= (select .cse26 0) |sll_insert_#in~data|) .cse4) .cse27 .cse28))) (and (or (<= (+ .cse29 1) |#StackHeapBarrier|) .cse30) .cse31 .cse0 .cse6 (or (not (= (select |old(#valid)| .cse18) 1)) .cse32 .cse3 (let ((.cse35 (select |old(#memory_int)| .cse18)) (.cse36 (select |#memory_int| .cse9))) (let ((.cse34 (@diff .cse35 .cse36))) (and (= .cse8 .cse33) .cse10 (or (not (= .cse34 0)) (= .cse35 .cse36)) (= .cse36 (store .cse35 .cse34 (select .cse36 .cse34))) (not (= .cse9 sll_insert_~new_node~0.base))))) .cse37) (<= 2 |sll_insert_#in~index|) .cse27) (let ((.cse44 (+ sll_insert_~snd_to_last~0.offset 4))) (let ((.cse39 (store |#memory_$Pointer$.offset| sll_insert_~snd_to_last~0.base (store (select |#memory_$Pointer$.offset| sll_insert_~snd_to_last~0.base) .cse44 sll_insert_~new_node~0.offset)))) (let ((.cse40 (= sll_insert_~snd_to_last~0.offset (select (select .cse39 |sll_insert_#in~head.base|) |sll_insert_#in~head.offset|))) (.cse43 (= sll_insert_~snd_to_last~0.base sll_insert_~new_node~0.base))) (and .cse0 .cse1 (or .cse32 (and (= (select .cse26 sll_insert_~new_node~0.offset) |sll_insert_#in~data|) (= sll_insert_~new_node~0.offset sll_insert_~snd_to_last~0.offset)) .cse3) (let ((.cse42 (store (select |#memory_$Pointer$.base| sll_insert_~snd_to_last~0.base) .cse44 sll_insert_~new_node~0.base))) (let ((.cse38 (store |#memory_$Pointer$.base| sll_insert_~snd_to_last~0.base .cse42))) (let ((.cse41 (select (select .cse38 |sll_insert_#in~head.base|) |sll_insert_#in~head.offset|))) (or (and .cse5 .cse7) (and .cse12 (= (select (select .cse38 sll_insert_~new_node~0.base) |sll_insert_#in~head.offset|) sll_insert_~snd_to_last~0.base) .cse13 (= sll_insert_~snd_to_last~0.offset (select (select .cse39 sll_insert_~new_node~0.base) |sll_insert_#in~head.offset|))) (and .cse10 .cse40 (= sll_insert_~snd_to_last~0.base .cse41)) (and (not (= (select .cse42 |sll_insert_#in~head.offset|) 0)) .cse12 .cse13 .cse43) (and .cse10 (not (= .cse41 0))))))) (or (and (= sll_insert_~last~0.offset (select (select |old(#memory_$Pointer$.offset)| sll_insert_~snd_to_last~0.base) .cse44)) (= (select (select |old(#memory_$Pointer$.base)| sll_insert_~snd_to_last~0.base) .cse44) sll_insert_~last~0.base)) .cse43) (<= 1 |sll_insert_#in~index|) (or .cse2 .cse32 .cse3 .cse43 .cse37) .cse31 .cse6 (or (= sll_insert_~snd_to_last~0.base |sll_insert_#in~head.base|) .cse40 .cse3 .cse43) .cse15 .cse23 (or (= sll_insert_~snd_to_last~0.base .cse18) .cse3) .cse24 .cse25 .cse27 .cse28))))))))) [2020-10-13 10:42:48,931 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= sll_insert_~head.base |sll_insert_#in~head.base|) (= |#memory_int| |old(#memory_int)|) (= sll_insert_~index |sll_insert_#in~index|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |sll_insert_#in~data| sll_insert_~data) (= |old(#valid)| |#valid|) (= sll_insert_~head.offset |sll_insert_#in~head.offset|)) [2020-10-13 10:42:48,932 INFO L268 CegarLoopResult]: For program point L593-3(lines 589 604) no Hoare annotation was computed. [2020-10-13 10:42:48,932 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-10-13 10:42:48,932 INFO L268 CegarLoopResult]: For program point sll_insertEXIT(lines 589 604) no Hoare annotation was computed. [2020-10-13 10:42:48,932 INFO L268 CegarLoopResult]: For program point sll_insertFINAL(lines 589 604) no Hoare annotation was computed. [2020-10-13 10:42:48,932 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 10:42:48,932 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-13 10:42:48,932 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 10:42:48,932 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 10:42:48,933 INFO L271 CegarLoopResult]: At program point L638(line 638) the Hoare annotation is: true [2020-10-13 10:42:48,933 INFO L268 CegarLoopResult]: For program point L638-1(line 638) no Hoare annotation was computed. [2020-10-13 10:42:48,933 INFO L264 CegarLoopResult]: At program point L636(lines 605 642) the Hoare annotation is: false [2020-10-13 10:42:48,933 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 605 642) no Hoare annotation was computed. [2020-10-13 10:42:48,933 INFO L268 CegarLoopResult]: For program point L622(lines 622 624) no Hoare annotation was computed. [2020-10-13 10:42:48,933 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 605 642) no Hoare annotation was computed. [2020-10-13 10:42:48,933 INFO L268 CegarLoopResult]: For program point L616(lines 616 618) no Hoare annotation was computed. [2020-10-13 10:42:48,934 INFO L264 CegarLoopResult]: At program point L614-2(lines 614 621) the Hoare annotation is: (let ((.cse43 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (.cse7 (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (let ((.cse34 (select |#memory_$Pointer$.base| .cse7)) (.cse42 (+ .cse43 4)) (.cse20 (+ main_~ptr~0.offset 4))) (let ((.cse4 (select (select |#memory_$Pointer$.offset| main_~ptr~0.base) .cse20)) (.cse26 (select (select |#memory_$Pointer$.base| main_~ptr~0.base) .cse20)) (.cse38 (select .cse34 .cse42)) (.cse37 (select |#memory_$Pointer$.offset| .cse7)) (.cse33 (select (select |#memory_int| .cse7) .cse43))) (let ((.cse28 (not (= main_~uneq~0 1))) (.cse17 (= main_~data~0 .cse33)) (.cse36 (select .cse37 .cse42)) (.cse35 (select |#memory_$Pointer$.base| .cse38)) (.cse10 (select |#memory_$Pointer$.base| .cse26)) (.cse29 (+ .cse4 4))) (let ((.cse1 (select (select |#memory_int| main_~ptr~0.base) main_~ptr~0.offset)) (.cse12 (= main_~mid_index~0 1)) (.cse0 (select (select |#memory_int| .cse26) .cse4)) (.cse9 (= (select .cse10 .cse29) 0)) (.cse13 (= .cse43 0)) (.cse14 (let ((.cse40 (select (select |#memory_$Pointer$.offset| .cse38) .cse42)) (.cse39 (select .cse35 .cse42))) (or (and (= .cse39 0) (<= .cse40 0) (<= 0 .cse40)) (let ((.cse41 (select (select |#memory_$Pointer$.offset| .cse39) .cse42))) (and (<= .cse41 0) (= (select (select |#memory_$Pointer$.base| .cse39) .cse42) 0) (= .cse43 .cse40) (<= 0 .cse41)))))) (.cse2 (or (and .cse28 (not .cse17)) (= main_~uneq~0 (select (select |#memory_int| .cse38) .cse36)))) (.cse16 (= main_~data~0 1)) (.cse3 (= (select .cse37 4) 0)) (.cse18 (= main_~len~0 2)) (.cse5 (+ main_~count~0 1)) (.cse6 (= |main_~#s~0.offset| 0)) (.cse8 (<= (+ |#StackHeapBarrier| 1) |main_~#s~0.base|)) (.cse21 (not (= (select .cse35 (+ .cse36 4)) 0))) (.cse22 (let ((.cse32 (select .cse34 4))) (let ((.cse31 (select (select |#memory_$Pointer$.base| .cse32) 4))) (or (= (select (select |#memory_int| .cse31) (select (select |#memory_$Pointer$.offset| .cse32) 4)) .cse33) (= .cse31 0))))) (.cse11 (select |#memory_$Pointer$.offset| .cse26))) (or (let ((.cse19 (select .cse10 .cse20))) (let ((.cse15 (select (select |#memory_$Pointer$.offset| .cse19) .cse20))) (and (= main_~uneq~0 .cse0) (= .cse1 main_~data~0) .cse2 .cse3 (= main_~ptr~0.offset .cse4) (= main_~mid_index~0 .cse5) .cse6 (not (= .cse7 0)) .cse8 (not .cse9) (= .cse1 (select (select |#memory_int| (select .cse10 4)) (select .cse11 4))) .cse12 .cse13 .cse14 (<= 0 .cse15) .cse16 .cse17 (= .cse4 0) .cse18 (= (select (select |#memory_$Pointer$.base| .cse19) .cse20) 0) (= main_~ptr~0.offset (select .cse11 .cse20)) (<= .cse15 0) .cse21 (not (= main_~ptr~0.base 0)) .cse22))) (let ((.cse30 (+ main_~temp~2.offset 4))) (let ((.cse23 (select (select |#memory_$Pointer$.base| main_~temp~2.base) .cse30)) (.cse24 (+ (select (select |#memory_$Pointer$.offset| main_~temp~2.base) .cse30) 4))) (let ((.cse25 (select .cse11 .cse29)) (.cse27 (select (select |#memory_$Pointer$.offset| .cse23) .cse24))) (and (= .cse1 main_~uneq~0) .cse12 (= main_~data~0 .cse0) (= (select (select |#memory_$Pointer$.base| .cse23) .cse24) 0) .cse9 (<= 0 .cse25) .cse13 .cse14 (not (= .cse26 0)) (<= .cse5 main_~len~0) .cse2 .cse16 .cse3 .cse18 (<= .cse25 0) (<= .cse27 0) (<= main_~len~0 .cse5) (not (= .cse23 0)) (or (and (not (= |main_#t~mem13| main_~data~0)) .cse28) (= (select (select |#memory_int| main_~temp~2.base) main_~temp~2.offset) main_~uneq~0)) (<= 0 .cse27) .cse6 .cse8 .cse21 .cse22)))))))))) [2020-10-13 10:42:48,934 INFO L268 CegarLoopResult]: For program point L614-3(lines 614 621) no Hoare annotation was computed. [2020-10-13 10:42:48,935 INFO L264 CegarLoopResult]: At program point L608(line 608) the Hoare annotation is: (let ((.cse20 (@diff |old(#memory_$Pointer$.offset)| |#memory_$Pointer$.offset|))) (let ((.cse33 (select |#memory_$Pointer$.offset| .cse20))) (let ((.cse36 (store |old(#memory_$Pointer$.offset)| .cse20 .cse33))) (let ((.cse14 (@diff .cse36 |#memory_$Pointer$.offset|))) (let ((.cse37 (select |#memory_$Pointer$.offset| .cse14))) (let ((.cse30 (store .cse36 .cse14 .cse37))) (let ((.cse15 (@diff .cse30 |#memory_$Pointer$.offset|))) (let ((.cse32 (select |old(#memory_$Pointer$.offset)| .cse20)) (.cse38 (select |old(#memory_$Pointer$.offset)| .cse14)) (.cse42 (select |old(#memory_$Pointer$.offset)| .cse15)) (.cse31 (select |#memory_$Pointer$.offset| .cse15))) (let ((.cse43 (@diff .cse42 .cse31)) (.cse39 (@diff .cse38 .cse37)) (.cse35 (@diff .cse32 .cse33))) (let ((.cse34 (select .cse33 .cse35)) (.cse40 (select .cse37 .cse39)) (.cse41 (select .cse31 .cse43)) (.cse7 (@diff |old(#memory_$Pointer$.base)| |#memory_$Pointer$.base|)) (.cse16 (= |#memory_$Pointer$.offset| .cse30)) (.cse17 (= (select |old(#valid)| .cse15) 0))) (let ((.cse1 (<= (+ .cse20 1) |#StackHeapBarrier|)) (.cse6 (or .cse16 .cse17)) (.cse9 (= (select |old(#valid)| .cse7) 0)) (.cse0 (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (.cse8 (select |#memory_$Pointer$.base| .cse7)) (.cse21 (<= (+ .cse15 1) |#StackHeapBarrier|)) (.cse23 (= .cse31 (store .cse42 .cse43 .cse41))) (.cse24 (= .cse41 0)) (.cse11 (= .cse40 0)) (.cse13 (= .cse37 (store .cse38 .cse39 .cse40))) (.cse3 (= (select |old(#valid)| .cse14) 0)) (.cse4 (= |#memory_$Pointer$.offset| .cse36)) (.cse10 (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (.cse2 (= (store .cse32 .cse35 .cse34) .cse33)) (.cse5 (= .cse34 0)) (.cse12 (= (select |old(#valid)| .cse20) 0))) (and (or .cse0 .cse1 (and .cse2 (or .cse3 .cse4) .cse5 .cse6)) (= |#memory_$Pointer$.base| (store |old(#memory_$Pointer$.base)| .cse7 .cse8)) (or .cse0 .cse9 .cse1 .cse10) (or .cse4 (and .cse11 .cse12 .cse13 (or .cse9 .cse10) .cse6) (<= (+ .cse14 1) |#StackHeapBarrier|)) (or .cse9 (let ((.cse22 (select |old(#memory_$Pointer$.base)| .cse7))) (let ((.cse18 (@diff .cse22 .cse8))) (let ((.cse19 (select .cse8 .cse18))) (and (or (= .cse14 .cse7) .cse3 .cse4) (or (= .cse15 .cse7) .cse16 .cse17) (= (select (select |old(#memory_$Pointer$.offset)| .cse7) .cse18) (select (select |#memory_$Pointer$.offset| .cse19) 4)) (or .cse0 (= .cse20 .cse7) .cse12) (or .cse16 .cse21) (= (store .cse22 .cse18 .cse19) .cse8) (= (select (select |#memory_$Pointer$.base| .cse19) 4) (select .cse22 .cse18)))))) .cse10) (or .cse16 .cse21 (and .cse23 .cse24 .cse12 .cse3)) (or .cse16 .cse17 (and .cse23 .cse24)) (= main_~data~0 1) (or (and .cse11 .cse13) .cse3 .cse4) (let ((.cse26 (select |old(#memory_$Pointer$.offset)| |sll_insert_#in~head.base|)) (.cse25 (select (select |old(#memory_$Pointer$.base)| |sll_insert_#in~head.base|) |sll_insert_#in~head.offset|))) (or (not (= (select |old(#valid)| .cse25) 1)) (not (= (select .cse26 |sll_insert_#in~head.offset|) 0)) (let ((.cse28 (select |old(#memory_int)| .cse25)) (.cse29 (select |#memory_int| (select (select |#memory_$Pointer$.base| |sll_insert_#in~head.base|) |sll_insert_#in~head.offset|)))) (let ((.cse27 (@diff .cse28 .cse29))) (and (= (select |#memory_$Pointer$.offset| |sll_insert_#in~head.base|) .cse26) (or (not (= .cse27 0)) (= .cse28 .cse29)) (= .cse29 (store .cse28 .cse27 (select .cse29 .cse27)))))) (<= (+ |sll_insert_#in~head.base| 1) |#StackHeapBarrier|) (= .cse25 |sll_insert_#in~head.base|))) (= main_~len~0 2) (or (<= (+ .cse7 1) |#StackHeapBarrier|) .cse10) (= |#memory_$Pointer$.offset| (store .cse30 .cse15 .cse31)) (= |main_~#s~0.offset| 0) (or (and .cse2 (or .cse5 (= .cse32 .cse33))) .cse12) (<= (+ |#StackHeapBarrier| 1) |main_~#s~0.base|))))))))))))) [2020-10-13 10:42:48,935 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 640) no Hoare annotation was computed. [2020-10-13 10:42:48,935 INFO L268 CegarLoopResult]: For program point L608-1(line 608) no Hoare annotation was computed. [2020-10-13 10:42:48,935 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 605 642) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-13 10:42:48,936 INFO L268 CegarLoopResult]: For program point L629(lines 629 631) no Hoare annotation was computed. [2020-10-13 10:42:48,936 INFO L264 CegarLoopResult]: At program point L627-2(lines 627 634) the Hoare annotation is: (let ((.cse36 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (.cse37 (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (let ((.cse26 (+ main_~temp~2.offset 4)) (.cse20 (select |#memory_$Pointer$.base| .cse37)) (.cse35 (+ .cse36 4))) (let ((.cse31 (select .cse20 .cse35)) (.cse30 (select |#memory_$Pointer$.offset| .cse37)) (.cse22 (select (select |#memory_$Pointer$.base| main_~temp~2.base) .cse26))) (let ((.cse25 (= .cse22 0)) (.cse29 (not (= main_~uneq~0 1))) (.cse19 (select (select |#memory_int| .cse37) .cse36)) (.cse28 (select .cse30 .cse35)) (.cse27 (select |#memory_$Pointer$.base| .cse31))) (let ((.cse0 (= main_~mid_index~0 1)) (.cse2 (= .cse36 0)) (.cse3 (let ((.cse33 (select (select |#memory_$Pointer$.offset| .cse31) .cse35)) (.cse32 (select .cse27 .cse35))) (or (and (= .cse32 0) (<= .cse33 0) (<= 0 .cse33)) (let ((.cse34 (select (select |#memory_$Pointer$.offset| .cse32) .cse35))) (and (<= .cse34 0) (= (select (select |#memory_$Pointer$.base| .cse32) .cse35) 0) (= .cse36 .cse33) (<= 0 .cse34)))))) (.cse4 (or (and .cse29 (not (= main_~data~0 .cse19))) (= main_~uneq~0 (select (select |#memory_int| .cse31) .cse28)))) (.cse5 (= main_~data~0 1)) (.cse6 (= (select .cse30 4) 0)) (.cse7 (= main_~len~0 2)) (.cse8 (not .cse25)) (.cse9 (or (and (not (= |main_#t~mem13| main_~data~0)) .cse29) (= (select (select |#memory_int| main_~temp~2.base) main_~temp~2.offset) main_~uneq~0))) (.cse10 (= |main_~#s~0.offset| 0)) (.cse11 (<= (+ |#StackHeapBarrier| 1) |main_~#s~0.base|)) (.cse12 (not (= (select .cse27 (+ .cse28 4)) 0))) (.cse1 (= main_~ptr~0.base 0)) (.cse13 (let ((.cse24 (select (select |#memory_$Pointer$.offset| main_~temp~2.base) .cse26))) (or (let ((.cse23 (+ .cse24 4))) (let ((.cse21 (select (select |#memory_$Pointer$.offset| .cse22) .cse23))) (and (<= .cse21 0) (<= 0 .cse21) (= (select (select |#memory_$Pointer$.base| .cse22) .cse23) 0)))) (and .cse25 (<= .cse24 0) (<= 0 .cse24))))) (.cse14 (let ((.cse18 (select .cse20 4))) (let ((.cse17 (select (select |#memory_$Pointer$.base| .cse18) 4))) (or (= (select (select |#memory_int| .cse17) (select (select |#memory_$Pointer$.offset| .cse18) 4)) .cse19) (= .cse17 0)))))) (or (and .cse0 (= main_~temp~3.base 0) .cse1 .cse2 (<= 0 main_~temp~3.offset) (<= main_~count~0 (+ main_~len~0 1)) .cse3 .cse4 .cse5 .cse6 (<= main_~temp~3.offset 0) .cse7 (<= main_~ptr~0.offset 0) .cse8 .cse9 (<= 0 main_~ptr~0.offset) .cse10 .cse11 .cse12 .cse13 (< main_~len~0 main_~count~0) .cse14) (let ((.cse15 (+ main_~ptr~0.offset 4))) (let ((.cse16 (select (select |#memory_$Pointer$.offset| main_~ptr~0.base) .cse15))) (and .cse0 (= (select (select |#memory_$Pointer$.base| main_~ptr~0.base) .cse15) 0) (<= main_~count~0 main_~len~0) .cse2 .cse3 (= (select (select |#memory_int| main_~ptr~0.base) main_~ptr~0.offset) main_~data~0) (<= main_~len~0 main_~count~0) .cse4 .cse5 (<= 0 .cse16) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 (not .cse1) .cse13 (<= .cse16 0) .cse14))))))))) [2020-10-13 10:42:48,936 INFO L268 CegarLoopResult]: For program point L627-3(lines 605 642) no Hoare annotation was computed. [2020-10-13 10:42:48,937 INFO L264 CegarLoopResult]: At program point L611(line 611) the Hoare annotation is: (let ((.cse3 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (.cse6 (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (let ((.cse7 (select |#memory_$Pointer$.base| .cse6)) (.cse2 (+ .cse3 4))) (let ((.cse1 (select .cse7 .cse2)) (.cse4 (select (select |#memory_int| .cse6) .cse3)) (.cse5 (select |#memory_$Pointer$.offset| .cse6)) (.cse0 (select .cse7 4))) (and (not (= main_~uneq~0 1)) (not (= |main_~#s~0.base| .cse0)) (= (select (select |#memory_$Pointer$.base| .cse1) .cse2) 0) (= .cse3 0) (= .cse3 |main_~#s~0.offset|) (= .cse3 (select (select |#memory_$Pointer$.offset| .cse1) .cse2)) (not (= .cse1 0)) (= main_~data~0 1) (= main_~data~0 .cse4) (= main_~len~0 2) (= (select (select |#memory_int| .cse0) (select .cse5 4)) .cse4) (= (select |#valid| .cse6) 1) (<= 1 main_~mid_index~0) (= (select .cse5 .cse2) 0) (not (= .cse6 0)) (= (select |#valid| .cse0) 1) (<= (+ |#StackHeapBarrier| 1) |main_~#s~0.base|) (<= main_~mid_index~0 1) (not (= |main_~#s~0.base| .cse6)))))) [2020-10-13 10:42:48,937 INFO L268 CegarLoopResult]: For program point L611-1(line 611) no Hoare annotation was computed. [2020-10-13 10:42:48,937 INFO L264 CegarLoopResult]: At program point node_createENTRY(lines 564 572) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-13 10:42:48,937 INFO L268 CegarLoopResult]: For program point node_createFINAL(lines 564 572) no Hoare annotation was computed. [2020-10-13 10:42:48,937 INFO L271 CegarLoopResult]: At program point L567(line 567) the Hoare annotation is: true [2020-10-13 10:42:48,937 INFO L268 CegarLoopResult]: For program point L566(lines 566 568) no Hoare annotation was computed. [2020-10-13 10:42:48,937 INFO L268 CegarLoopResult]: For program point node_createEXIT(lines 564 572) no Hoare annotation was computed. [2020-10-13 10:42:48,937 INFO L268 CegarLoopResult]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2020-10-13 10:42:48,955 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:48,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:48,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:48,958 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,958 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,963 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:48,963 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,964 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:48,964 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,964 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,965 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,965 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,966 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,966 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:48,966 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,967 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:48,967 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:42:48,968 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,968 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:48,969 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,969 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,969 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,969 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 10:42:48,969 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 10:42:48,970 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:48,970 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:48,970 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,970 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,970 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:42:48,970 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,970 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,971 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,971 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,971 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:48,971 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,971 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:42:48,971 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:48,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:48,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:48,973 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,975 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,976 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:48,976 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:48,976 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:48,976 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,977 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,977 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:48,977 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,977 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:48,978 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,978 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,978 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,978 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,979 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,979 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:48,979 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:48,979 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:48,980 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:42:48,980 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,980 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:48,980 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,980 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,981 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,981 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 10:42:48,981 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 10:42:48,981 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:48,981 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:48,982 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,982 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,982 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:42:48,982 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,983 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,983 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,983 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,983 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:48,983 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,984 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:42:48,984 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:48,984 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,984 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,984 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:48,985 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,985 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,985 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:48,985 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:48,988 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (@diff (Array Int (Array Int Int)) (Array Int (Array Int Int)) Int) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.getBinaryOperator(Term2Expression.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:246) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translateStore(Term2Expression.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:157) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:693) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:260) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:217) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-10-13 10:42:48,992 INFO L168 Benchmark]: Toolchain (without parser) took 121857.05 ms. Allocated memory was 141.0 MB in the beginning and 1.1 GB in the end (delta: 950.0 MB). Free memory was 102.3 MB in the beginning and 453.0 MB in the end (delta: -350.7 MB). Peak memory consumption was 937.9 MB. Max. memory is 7.1 GB. [2020-10-13 10:42:48,992 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 10:42:48,993 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.89 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 102.1 MB in the beginning and 167.1 MB in the end (delta: -64.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-10-13 10:42:48,993 INFO L168 Benchmark]: Boogie Preprocessor took 80.09 ms. Allocated memory is still 202.9 MB. Free memory was 167.1 MB in the beginning and 163.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-10-13 10:42:48,994 INFO L168 Benchmark]: RCFGBuilder took 674.06 ms. Allocated memory is still 202.9 MB. Free memory was 163.9 MB in the beginning and 113.3 MB in the end (delta: 50.6 MB). Peak memory consumption was 50.6 MB. Max. memory is 7.1 GB. [2020-10-13 10:42:48,995 INFO L168 Benchmark]: TraceAbstraction took 120387.16 ms. Allocated memory was 202.9 MB in the beginning and 1.1 GB in the end (delta: 888.1 MB). Free memory was 112.6 MB in the beginning and 453.0 MB in the end (delta: -340.4 MB). Peak memory consumption was 886.3 MB. Max. memory is 7.1 GB. [2020-10-13 10:42:48,998 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 710.89 ms. Allocated memory was 141.0 MB in the beginning and 202.9 MB in the end (delta: 61.9 MB). Free memory was 102.1 MB in the beginning and 167.1 MB in the end (delta: -64.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.09 ms. Allocated memory is still 202.9 MB. Free memory was 167.1 MB in the beginning and 163.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 674.06 ms. Allocated memory is still 202.9 MB. Free memory was 163.9 MB in the beginning and 113.3 MB in the end (delta: 50.6 MB). Peak memory consumption was 50.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 120387.16 ms. Allocated memory was 202.9 MB in the beginning and 1.1 GB in the end (delta: 888.1 MB). Free memory was 112.6 MB in the beginning and 453.0 MB in the end (delta: -340.4 MB). Peak memory consumption was 886.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 640]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 575]: Loop Invariant [2020-10-13 10:42:49,008 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,009 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:49,009 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:49,009 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:49,009 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,010 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,010 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:49,010 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,010 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:49,010 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,011 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,011 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,011 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,011 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,012 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:49,012 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,012 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:49,012 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:42:49,013 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,013 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:49,013 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,013 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,013 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,014 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 10:42:49,014 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 10:42:49,014 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:49,014 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:49,014 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,014 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,015 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:42:49,015 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,015 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,015 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,016 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,016 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:49,016 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,016 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:42:49,016 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:49,016 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,017 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,017 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:49,017 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,017 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,017 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:49,017 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,018 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,019 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:49,019 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:49,019 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:49,019 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,020 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,020 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:49,020 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,020 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:49,020 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,021 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,021 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,021 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,021 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,022 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:42:49,022 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:42:49,022 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:49,022 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:42:49,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:49,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 10:42:49,024 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 10:42:49,024 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:49,024 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:49,024 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,024 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,024 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:42:49,025 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,025 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,025 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,025 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,026 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:49,026 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,026 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:42:49,026 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:49,026 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,026 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,027 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:49,027 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,027 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:42:49,027 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:42:49,027 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (((((((((((unknown-#memory_int-unknown[head][head] == data && head + 1 <= unknown-#StackHeapBarrier-unknown) && \old(len) == len + 1) && #memory_$Pointer$[head][4] == 0) && !(head == 0)) && \old(data) == unknown-#memory_int-unknown[head][head]) && \valid[head] == 1) && head == 0) && #memory_$Pointer$[head][4] == 0) || !(\old(len) <= 2)) || !(2 <= \old(len))) || ((((((((#memory_$Pointer$ == \old(#memory_$Pointer$) && \old(unknown-#length-unknown) == unknown-#length-unknown) && head == 0) && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && \old(data) == data) && \old(len) == len) && head == 0) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && \old(\valid) == \valid)) || (((((((((((((head + 1 <= unknown-#StackHeapBarrier-unknown && !(head == 0)) && #memory_$Pointer$[head][head + 4] == head) && !(#memory_$Pointer$[head][head + 4] == 0)) && \valid[head] == 1) && head == 0) && #memory_$Pointer$[#memory_$Pointer$[head][4]][4] == 0) && unknown-#memory_int-unknown[head][head] == data) && #memory_$Pointer$[head][head + 4] + 1 <= unknown-#StackHeapBarrier-unknown) && \old(data) == unknown-#memory_int-unknown[head][head]) && #memory_$Pointer$[#memory_$Pointer$[head][4]][4] == 0) && len + 2 <= \old(len)) && unknown-#memory_int-unknown[#memory_$Pointer$[head][4]][#memory_$Pointer$[head][4]] == unknown-#memory_int-unknown[head][head]) && \valid[#memory_$Pointer$[head][4]] == 1) - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (@diff (Array Int (Array Int Int)) (Array Int (Array Int Int)) Int) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (@diff (Array Int (Array Int Int)) (Array Int (Array Int Int)) Int): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.getBinaryOperator(Term2Expression.java:553) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...