/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_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:40:42,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:40:42,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:40:42,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:40:42,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:40:43,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:40:43,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:40:43,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:40:43,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:40:43,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:40:43,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:40:43,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:40:43,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:40:43,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:40:43,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:40:43,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:40:43,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:40:43,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:40:43,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:40:43,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:40:43,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:40:43,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:40:43,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:40:43,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:40:43,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:40:43,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:40:43,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:40:43,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:40:43,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:40:43,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:40:43,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:40:43,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:40:43,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:40:43,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:40:43,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:40:43,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:40:43,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:40:43,074 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:40:43,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:40:43,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:40:43,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:40:43,076 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 10:40:43,097 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:40:43,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:40:43,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:40:43,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:40:43,099 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:40:43,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:40:43,100 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:40:43,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:40:43,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:40:43,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:40:43,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:40:43,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:40:43,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:40:43,101 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:40:43,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:40:43,102 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:40:43,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:40:43,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:40:43,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:40:43,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:40:43,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:40:43,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:40:43,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:40:43,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:40:43,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:40:43,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:40:43,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:40:43,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:40:43,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:40:43,105 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 10:40:43,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:40:43,437 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:40:43,447 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:40:43,450 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:40:43,451 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:40:43,451 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_insert_equal.i [2020-10-13 10:40:43,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/045f4c07c/9f404ccb73e24d93926c23895e190bf4/FLAG9e24bfade [2020-10-13 10:40:44,061 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:40:44,062 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-simple/sll2n_insert_equal.i [2020-10-13 10:40:44,085 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/045f4c07c/9f404ccb73e24d93926c23895e190bf4/FLAG9e24bfade [2020-10-13 10:40:44,410 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/045f4c07c/9f404ccb73e24d93926c23895e190bf4 [2020-10-13 10:40:44,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:40:44,419 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:40:44,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:40:44,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:40:44,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:40:44,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:40:44" (1/1) ... [2020-10-13 10:40:44,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4076c4d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:44, skipping insertion in model container [2020-10-13 10:40:44,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:40:44" (1/1) ... [2020-10-13 10:40:44,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:40:44,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:40:44,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:40:44,950 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:40:44,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:40:45,064 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:40:45,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:45 WrapperNode [2020-10-13 10:40:45,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:40:45,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:40:45,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:40:45,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:40:45,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:45" (1/1) ... [2020-10-13 10:40:45,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:45" (1/1) ... [2020-10-13 10:40:45,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:45" (1/1) ... [2020-10-13 10:40:45,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:45" (1/1) ... [2020-10-13 10:40:45,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:45" (1/1) ... [2020-10-13 10:40:45,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:45" (1/1) ... [2020-10-13 10:40:45,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:45" (1/1) ... [2020-10-13 10:40:45,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:40:45,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:40:45,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:40:45,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:40:45,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:45" (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 10:40:45,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:40:45,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:40:45,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-13 10:40:45,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-13 10:40:45,215 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-10-13 10:40:45,215 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-10-13 10:40:45,215 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2020-10-13 10:40:45,216 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2020-10-13 10:40:45,216 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2020-10-13 10:40:45,216 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:40:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:40:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-13 10:40:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-13 10:40:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-13 10:40:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-13 10:40:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-13 10:40:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-13 10:40:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-13 10:40:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-13 10:40:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-13 10:40:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-13 10:40:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-13 10:40:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-13 10:40:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-13 10:40:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-13 10:40:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-13 10:40:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-13 10:40:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-13 10:40:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-13 10:40:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-13 10:40:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-13 10:40:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-13 10:40:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-13 10:40:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-13 10:40:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-13 10:40:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-13 10:40:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-13 10:40:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-13 10:40:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-13 10:40:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-13 10:40:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-13 10:40:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-13 10:40:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-13 10:40:45,223 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-13 10:40:45,223 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-13 10:40:45,223 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-13 10:40:45,223 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-13 10:40:45,223 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-13 10:40:45,223 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-13 10:40:45,223 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-13 10:40:45,224 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-13 10:40:45,224 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-13 10:40:45,224 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-13 10:40:45,224 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-13 10:40:45,224 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-13 10:40:45,224 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-13 10:40:45,225 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-13 10:40:45,225 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-13 10:40:45,225 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-13 10:40:45,225 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-13 10:40:45,225 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-13 10:40:45,225 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-13 10:40:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-13 10:40:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 10:40:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 10:40:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-13 10:40:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 10:40:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-13 10:40:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-13 10:40:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-13 10:40:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-13 10:40:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-13 10:40:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 10:40:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-13 10:40:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-13 10:40:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-13 10:40:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 10:40:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-13 10:40:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-13 10:40:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-13 10:40:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-13 10:40:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-13 10:40:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-13 10:40:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-13 10:40:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-13 10:40:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-13 10:40:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-13 10:40:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-13 10:40:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-13 10:40:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-13 10:40:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-13 10:40:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-13 10:40:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-13 10:40:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-13 10:40:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-13 10:40:45,231 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-13 10:40:45,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-13 10:40:45,231 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-13 10:40:45,231 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-13 10:40:45,231 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-13 10:40:45,231 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-13 10:40:45,231 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-13 10:40:45,232 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-13 10:40:45,232 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-13 10:40:45,232 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-13 10:40:45,232 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-13 10:40:45,232 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-13 10:40:45,232 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-13 10:40:45,233 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-13 10:40:45,233 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-13 10:40:45,233 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-13 10:40:45,233 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-13 10:40:45,233 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-13 10:40:45,233 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-13 10:40:45,233 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-13 10:40:45,234 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-13 10:40:45,234 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-10-13 10:40:45,234 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-10-13 10:40:45,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 10:40:45,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 10:40:45,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 10:40:45,234 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2020-10-13 10:40:45,235 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2020-10-13 10:40:45,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 10:40:45,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 10:40:45,235 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2020-10-13 10:40:45,235 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:40:45,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 10:40:45,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 10:40:45,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 10:40:45,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:40:45,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:40:45,590 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-10-13 10:40:45,776 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:40:45,777 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-13 10:40:45,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:40:45 BoogieIcfgContainer [2020-10-13 10:40:45,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:40:45,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:40:45,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:40:45,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:40:45,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:40:44" (1/3) ... [2020-10-13 10:40:45,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9963df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:40:45, skipping insertion in model container [2020-10-13 10:40:45,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:40:45" (2/3) ... [2020-10-13 10:40:45,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9963df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:40:45, skipping insertion in model container [2020-10-13 10:40:45,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:40:45" (3/3) ... [2020-10-13 10:40:45,790 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2n_insert_equal.i [2020-10-13 10:40:45,800 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:40:45,809 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 10:40:45,822 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 10:40:45,843 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:40:45,843 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:40:45,843 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:40:45,843 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:40:45,844 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:40:45,844 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:40:45,844 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:40:45,844 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:40:45,861 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-10-13 10:40:45,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 10:40:45,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:40:45,869 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 10:40:45,869 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:40:45,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:40:45,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1950085846, now seen corresponding path program 1 times [2020-10-13 10:40:45,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:40:45,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293118520] [2020-10-13 10:40:45,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:40:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:46,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:46,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:46,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:46,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:46,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-13 10:40:46,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:40:46,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 479 [2020-10-13 10:40:46,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:46,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:46,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 10:40:46,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:46,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 10:40:46,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:40:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:46,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:46,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:46,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:40:46,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:46,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 10:40:46,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:46,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:46,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:46,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:46,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:46,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:40:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:46,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:46,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:46,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:46,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:46,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:40:46,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 10:40:46,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:46,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:46,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:46,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:46,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:46,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 10:40:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:46,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:46,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:46,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:46,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 10:40:46,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:40:46,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-13 10:40:46,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:46,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:46,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:40:46,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:46,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:46,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:40:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:46,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:46,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:46,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:46,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:46,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 10:40:46,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:46,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:46,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:46,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:46,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:46,834 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 10:40:46,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293118520] [2020-10-13 10:40:46,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:40:46,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 10:40:46,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160429659] [2020-10-13 10:40:46,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 10:40:46,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:40:46,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 10:40:46,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 10:40:46,874 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 4 states. [2020-10-13 10:40:47,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:40:47,169 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2020-10-13 10:40:47,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 10:40:47,171 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-13 10:40:47,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:40:47,191 INFO L225 Difference]: With dead ends: 94 [2020-10-13 10:40:47,192 INFO L226 Difference]: Without dead ends: 41 [2020-10-13 10:40:47,196 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 10:40:47,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-13 10:40:47,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 36. [2020-10-13 10:40:47,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-13 10:40:47,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2020-10-13 10:40:47,275 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 31 [2020-10-13 10:40:47,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:40:47,276 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2020-10-13 10:40:47,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 10:40:47,280 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2020-10-13 10:40:47,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 10:40:47,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:40:47,285 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 10:40:47,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:40:47,286 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:40:47,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:40:47,287 INFO L82 PathProgramCache]: Analyzing trace with hash -778212150, now seen corresponding path program 1 times [2020-10-13 10:40:47,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:40:47,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864564581] [2020-10-13 10:40:47,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:40:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:47,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:47,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:47,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:48,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:48,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-13 10:40:48,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:40:48,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 826 [2020-10-13 10:40:48,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:48,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:40:48,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-13 10:40:48,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 10:40:48,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 10:40:48,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:40:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:48,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:48,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:48,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:40:48,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:48,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:40:48,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:48,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:48,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:48,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:48,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 10:40:48,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:40:48,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:48,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:48,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:48,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:48,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:48,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:40:48,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:48,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:48,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:48,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:48,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 10:40:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:48,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:48,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:48,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 10:40:48,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:48,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 10:40:48,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:48,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:40:48,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:40:48,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 10:40:48,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:48,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:40:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:48,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:48,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:48,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:48,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:48,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 10:40:48,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:48,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:48,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:48,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:48,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:48,338 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 10:40:48,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864564581] [2020-10-13 10:40:48,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:40:48,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 10:40:48,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348936468] [2020-10-13 10:40:48,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 10:40:48,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:40:48,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 10:40:48,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:40:48,343 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 5 states. [2020-10-13 10:40:48,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:40:48,528 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2020-10-13 10:40:48,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 10:40:48,529 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-10-13 10:40:48,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:40:48,530 INFO L225 Difference]: With dead ends: 55 [2020-10-13 10:40:48,531 INFO L226 Difference]: Without dead ends: 46 [2020-10-13 10:40:48,532 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 10:40:48,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-13 10:40:48,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 38. [2020-10-13 10:40:48,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-13 10:40:48,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2020-10-13 10:40:48,541 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 31 [2020-10-13 10:40:48,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:40:48,542 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2020-10-13 10:40:48,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 10:40:48,542 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2020-10-13 10:40:48,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 10:40:48,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:40:48,544 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 10:40:48,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 10:40:48,544 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:40:48,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:40:48,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1587558776, now seen corresponding path program 1 times [2020-10-13 10:40:48,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:40:48,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746643273] [2020-10-13 10:40:48,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:40:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:48,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:48,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:48,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:49,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:49,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-13 10:40:49,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:40:49,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 942 [2020-10-13 10:40:49,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:49,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:40:49,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:40:49,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:40:49,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:49,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:40:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:49,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:49,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:49,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:40:49,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:49,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:40:49,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:49,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:49,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:49,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:49,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 10:40:49,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:40:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:49,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:49,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:49,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:49,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:49,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 10:40:49,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:49,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:40:49,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 10:40:49,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:40:49,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 10:40:49,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 10:40:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:49,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:49,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:49,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 10:40:49,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:49,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 10:40:49,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:49,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:49,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 10:40:49,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:49,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:49,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:40:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:49,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:49,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:49,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:49,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:49,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:40:49,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:49,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:49,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:49,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:49,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:49,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:40:49,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746643273] [2020-10-13 10:40:49,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:40:49,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 10:40:49,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576240584] [2020-10-13 10:40:49,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 10:40:49,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:40:49,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 10:40:49,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:40:49,689 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 7 states. [2020-10-13 10:40:49,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:40:49,956 INFO L93 Difference]: Finished difference Result 68 states and 80 transitions. [2020-10-13 10:40:49,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 10:40:49,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2020-10-13 10:40:49,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:40:49,959 INFO L225 Difference]: With dead ends: 68 [2020-10-13 10:40:49,961 INFO L226 Difference]: Without dead ends: 42 [2020-10-13 10:40:49,962 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 10:40:49,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-13 10:40:49,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2020-10-13 10:40:49,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-13 10:40:49,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2020-10-13 10:40:49,980 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 31 [2020-10-13 10:40:49,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:40:49,980 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2020-10-13 10:40:49,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 10:40:49,981 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2020-10-13 10:40:49,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-13 10:40:49,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:40:49,986 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 10:40:49,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 10:40:49,986 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:40:49,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:40:49,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1540600577, now seen corresponding path program 1 times [2020-10-13 10:40:49,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:40:49,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1899950621] [2020-10-13 10:40:49,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:40:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:50,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:50,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:50,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:51,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:51,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 10:40:51,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:40:51,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1817 [2020-10-13 10:40:51,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:40:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:40:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 10:40:51,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:51,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:40:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:51,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:51,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:51,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:40:51,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:51,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:40:51,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:51,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:51,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:51,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:51,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:51,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:40:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:51,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:51,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:51,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:40:51,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:51,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 10:40:51,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:40:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 10:40:51,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 10:40:51,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:52,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:40:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:52,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:52,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:52,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:52,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:52,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 10:40:52,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:52,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:40:52,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:52,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:40:52,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:52,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 10:40:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:52,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:52,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:52,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 10:40:52,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:52,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 10:40:52,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:52,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:52,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 10:40:52,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:52,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:52,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:40:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:52,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:52,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:52,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:52,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:52,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 10:40:52,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:52,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:52,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:52,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:52,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:52,112 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 10:40:52,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1899950621] [2020-10-13 10:40:52,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:40:52,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 10:40:52,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745486849] [2020-10-13 10:40:52,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 10:40:52,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:40:52,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 10:40:52,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-13 10:40:52,114 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand 8 states. [2020-10-13 10:40:52,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:40:52,367 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2020-10-13 10:40:52,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 10:40:52,368 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2020-10-13 10:40:52,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:40:52,370 INFO L225 Difference]: With dead ends: 72 [2020-10-13 10:40:52,370 INFO L226 Difference]: Without dead ends: 46 [2020-10-13 10:40:52,371 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-13 10:40:52,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-13 10:40:52,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2020-10-13 10:40:52,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-13 10:40:52,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2020-10-13 10:40:52,379 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 40 [2020-10-13 10:40:52,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:40:52,380 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2020-10-13 10:40:52,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 10:40:52,380 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2020-10-13 10:40:52,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-13 10:40:52,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:40:52,382 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 10:40:52,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 10:40:52,382 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:40:52,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:40:52,383 INFO L82 PathProgramCache]: Analyzing trace with hash -574636376, now seen corresponding path program 2 times [2020-10-13 10:40:52,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:40:52,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583008853] [2020-10-13 10:40:52,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:40:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:52,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:52,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:52,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:53,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:53,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 10:40:53,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:40:53,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1185 [2020-10-13 10:40:53,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:53,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 10:40:53,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 10:40:53,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 10:40:53,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:53,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:40:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:53,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:53,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:53,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:40:53,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:53,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:40:53,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:53,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:53,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:53,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:53,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:53,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:40:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:53,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:53,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:53,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:40:53,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:53,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-13 10:40:53,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:53,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:40:53,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:53,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 10:40:53,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:53,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:40:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:53,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:53,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:53,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:53,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:53,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 10:40:53,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:53,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:40:53,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:53,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:40:53,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:53,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:40:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:53,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:54,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:54,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:54,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:54,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 10:40:54,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:54,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:40:54,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:54,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:40:54,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:54,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:40:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:54,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:54,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:54,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 10:40:54,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:54,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 10:40:54,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:54,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:40:54,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 10:40:54,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 10:40:54,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:54,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:40:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:54,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:54,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:54,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:54,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:54,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 10:40:54,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:54,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:40:54,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:54,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:40:54,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:54,190 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-13 10:40:54,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583008853] [2020-10-13 10:40:54,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:40:54,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 10:40:54,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42182965] [2020-10-13 10:40:54,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 10:40:54,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:40:54,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 10:40:54,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-13 10:40:54,195 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand 10 states. [2020-10-13 10:40:54,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:40:54,550 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2020-10-13 10:40:54,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 10:40:54,551 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 49 [2020-10-13 10:40:54,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:40:54,553 INFO L225 Difference]: With dead ends: 52 [2020-10-13 10:40:54,553 INFO L226 Difference]: Without dead ends: 42 [2020-10-13 10:40:54,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2020-10-13 10:40:54,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-13 10:40:54,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-13 10:40:54,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-13 10:40:54,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2020-10-13 10:40:54,568 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 49 [2020-10-13 10:40:54,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:40:54,570 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2020-10-13 10:40:54,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 10:40:54,571 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2020-10-13 10:40:54,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-13 10:40:54,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:40:54,575 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 10:40:54,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 10:40:54,577 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:40:54,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:40:54,578 INFO L82 PathProgramCache]: Analyzing trace with hash 341969372, now seen corresponding path program 1 times [2020-10-13 10:40:54,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:40:54,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [743229134] [2020-10-13 10:40:54,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:40:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:54,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:56,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:56,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-13 10:40:56,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:56,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1491 [2020-10-13 10:40:56,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:56,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 10:40:56,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:40:56,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 10:40:56,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:56,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:40:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:56,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:56,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:56,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:40:56,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:56,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:40:56,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:56,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:40:56,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:56,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:40:56,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:40:56,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:40:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:56,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:56,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:56,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:40:56,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:56,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-13 10:40:56,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:56,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 10:40:56,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:56,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 10:40:56,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:56,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:40:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:56,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:56,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:56,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:56,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:56,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 10:40:56,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:56,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:40:56,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:56,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:40:56,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:56,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:40:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:56,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:56,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:56,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:56,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:56,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 10:40:56,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:40:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:40:56,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 10:40:56,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:56,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:40:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:56,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:57,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:57,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:40:57,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:57,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-10-13 10:40:57,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:57,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:40:57,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:40:57,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 10:40:57,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:57,795 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-10-13 10:40:57,984 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-10-13 10:40:58,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:40:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:40:58,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:40:58,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:40:58,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:40:58,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:40:58,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 10:40:58,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:40:58,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 10:40:58,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:40:58,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:40:58,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:40:58,541 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 37 [2020-10-13 10:40:58,568 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 10:40:58,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [743229134] [2020-10-13 10:40:58,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:40:58,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-13 10:40:58,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241877552] [2020-10-13 10:40:58,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-13 10:40:58,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:40:58,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-13 10:40:58,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2020-10-13 10:40:58,572 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 24 states. [2020-10-13 10:41:00,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:41:00,193 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2020-10-13 10:41:00,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 10:41:00,194 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 50 [2020-10-13 10:41:00,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:41:00,196 INFO L225 Difference]: With dead ends: 60 [2020-10-13 10:41:00,196 INFO L226 Difference]: Without dead ends: 58 [2020-10-13 10:41:00,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=131, Invalid=1201, Unknown=0, NotChecked=0, Total=1332 [2020-10-13 10:41:00,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-13 10:41:00,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2020-10-13 10:41:00,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-13 10:41:00,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2020-10-13 10:41:00,206 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 50 [2020-10-13 10:41:00,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:41:00,207 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2020-10-13 10:41:00,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-13 10:41:00,207 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2020-10-13 10:41:00,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-13 10:41:00,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:41:00,208 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 10:41:00,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 10:41:00,209 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:41:00,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:41:00,209 INFO L82 PathProgramCache]: Analyzing trace with hash 341967698, now seen corresponding path program 1 times [2020-10-13 10:41:00,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:41:00,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870160028] [2020-10-13 10:41:00,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:41:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:00,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:00,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:00,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:01,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:02,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:03,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:03,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:04,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:05,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:05,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-13 10:41:05,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 10:41:05,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 10:41:05,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:05,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 10:41:05,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 10:41:05,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 10:41:05,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:05,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:41:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:05,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:05,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:05,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:41:05,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:05,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:41:05,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:05,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:05,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:05,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:05,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:05,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:41:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:05,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:05,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:05,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:41:05,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:05,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 10:41:05,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:05,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:05,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:05,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:05,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:05,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:41:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:05,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:05,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:05,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:05,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:05,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:41:05,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:05,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:05,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:05,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:05,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:05,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:41:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:05,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:05,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:05,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:05,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:05,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:41:05,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:05,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:05,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:05,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:05,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:05,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:41:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:05,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:05,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:05,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:05,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:41:05,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:41:05,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-10-13 10:41:05,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:05,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 10:41:05,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:05,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 10:41:05,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:06,119 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2020-10-13 10:41:06,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:41:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:06,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:06,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:06,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:06,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:06,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 10:41:06,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:06,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:41:06,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:06,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:41:06,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:06,337 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 10:41:06,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870160028] [2020-10-13 10:41:06,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:41:06,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 10:41:06,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860934185] [2020-10-13 10:41:06,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 10:41:06,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:41:06,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 10:41:06,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-13 10:41:06,343 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand 14 states. [2020-10-13 10:41:06,969 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 92 [2020-10-13 10:41:07,197 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 66 [2020-10-13 10:41:07,461 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2020-10-13 10:41:07,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:41:07,595 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2020-10-13 10:41:07,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 10:41:07,596 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 50 [2020-10-13 10:41:07,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:41:07,597 INFO L225 Difference]: With dead ends: 65 [2020-10-13 10:41:07,597 INFO L226 Difference]: Without dead ends: 62 [2020-10-13 10:41:07,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2020-10-13 10:41:07,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-13 10:41:07,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 50. [2020-10-13 10:41:07,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-13 10:41:07,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2020-10-13 10:41:07,617 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 50 [2020-10-13 10:41:07,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:41:07,617 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2020-10-13 10:41:07,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 10:41:07,618 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2020-10-13 10:41:07,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-13 10:41:07,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:41:07,620 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 10:41:07,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 10:41:07,620 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:41:07,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:41:07,621 INFO L82 PathProgramCache]: Analyzing trace with hash -467377254, now seen corresponding path program 1 times [2020-10-13 10:41:07,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:41:07,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867849614] [2020-10-13 10:41:07,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:41:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:07,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:07,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:08,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:11,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:11,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-13 10:41:11,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:41:11,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3436 [2020-10-13 10:41:11,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 10:41:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:41:11,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 10:41:11,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:11,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:41:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:11,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:11,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:11,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:41:11,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:11,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:41:11,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:11,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:11,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:11,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:11,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:11,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:41:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:11,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:11,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:11,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:41:11,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:11,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-13 10:41:11,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:41:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 10:41:11,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:11,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:41:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:11,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:11,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:11,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:11,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:11,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 10:41:11,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:11,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:11,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:11,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:11,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:11,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:41:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:11,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:11,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:11,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:11,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:11,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 10:41:11,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:11,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:41:11,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:11,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:41:11,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:11,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:41:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:11,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:11,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:11,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:41:11,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:11,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-13 10:41:11,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:11,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 10:41:11,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:11,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 10:41:11,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:11,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:41:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:11,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:11,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:11,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:11,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:11,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 10:41:11,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:11,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:41:11,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:11,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:41:11,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:11,818 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 10:41:11,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1867849614] [2020-10-13 10:41:11,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:41:11,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-13 10:41:11,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700339586] [2020-10-13 10:41:11,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 10:41:11,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:41:11,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 10:41:11,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2020-10-13 10:41:11,821 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand 19 states. [2020-10-13 10:41:12,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:41:12,709 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2020-10-13 10:41:12,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 10:41:12,709 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 50 [2020-10-13 10:41:12,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:41:12,712 INFO L225 Difference]: With dead ends: 59 [2020-10-13 10:41:12,712 INFO L226 Difference]: Without dead ends: 50 [2020-10-13 10:41:12,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2020-10-13 10:41:12,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-13 10:41:12,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-10-13 10:41:12,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-13 10:41:12,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2020-10-13 10:41:12,722 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 50 [2020-10-13 10:41:12,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:41:12,722 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2020-10-13 10:41:12,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 10:41:12,723 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2020-10-13 10:41:12,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-13 10:41:12,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:41:12,724 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 10:41:12,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 10:41:12,724 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:41:12,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:41:12,724 INFO L82 PathProgramCache]: Analyzing trace with hash -627965142, now seen corresponding path program 2 times [2020-10-13 10:41:12,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:41:12,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112165378] [2020-10-13 10:41:12,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:41:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:12,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:12,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:13,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:13,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-13 10:41:13,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:41:13,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 661 [2020-10-13 10:41:13,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:13,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 10:41:13,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 10:41:13,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 10:41:13,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:13,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:41:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:13,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:13,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:13,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:41:13,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:13,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:41:13,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:13,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:13,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:13,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:13,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:13,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:41:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:13,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:13,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:13,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:41:13,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:13,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 10:41:13,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:13,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:41:13,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:13,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 10:41:13,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:13,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:41:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:13,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:13,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:13,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:13,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:13,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 10:41:13,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:13,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:41:13,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:13,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:41:13,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:13,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:41:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:13,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:13,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:13,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:13,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:13,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 10:41:13,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:13,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:41:13,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:13,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:41:13,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:13,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:41:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:13,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:13,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:13,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 10:41:13,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:13,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 10:41:13,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:41:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 10:41:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 10:41:13,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:13,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:41:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:13,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:13,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:13,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:13,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:13,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 10:41:13,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:13,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:41:13,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:13,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:41:13,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:13,752 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 10:41:13,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112165378] [2020-10-13 10:41:13,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:41:13,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 10:41:13,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420647611] [2020-10-13 10:41:13,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 10:41:13,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:41:13,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 10:41:13,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-13 10:41:13,754 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand 12 states. [2020-10-13 10:41:14,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:41:14,108 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2020-10-13 10:41:14,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 10:41:14,109 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2020-10-13 10:41:14,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:41:14,111 INFO L225 Difference]: With dead ends: 55 [2020-10-13 10:41:14,112 INFO L226 Difference]: Without dead ends: 44 [2020-10-13 10:41:14,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2020-10-13 10:41:14,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-13 10:41:14,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-10-13 10:41:14,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-13 10:41:14,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2020-10-13 10:41:14,129 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 51 [2020-10-13 10:41:14,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:41:14,131 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2020-10-13 10:41:14,131 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 10:41:14,132 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2020-10-13 10:41:14,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-13 10:41:14,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:41:14,134 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 10:41:14,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 10:41:14,134 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:41:14,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:41:14,134 INFO L82 PathProgramCache]: Analyzing trace with hash -2079868937, now seen corresponding path program 1 times [2020-10-13 10:41:14,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:41:14,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499857805] [2020-10-13 10:41:14,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:41:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:14,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:15,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:15,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-13 10:41:15,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:15,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1421 [2020-10-13 10:41:15,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:15,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 10:41:15,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:41:15,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-13 10:41:15,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:15,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:41:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:15,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:15,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:15,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:41:15,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:15,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:41:15,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:15,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:15,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:15,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:15,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:15,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:41:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:15,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:15,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:15,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:41:15,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:15,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-13 10:41:15,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:15,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:41:15,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:15,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 10:41:15,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:16,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:41:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:16,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:16,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:16,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:16,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:16,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 10:41:16,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:16,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:16,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:16,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:16,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:16,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:41:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:16,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:16,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:16,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:16,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:16,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 10:41:16,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:16,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:41:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:16,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:41:16,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:16,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:41:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:16,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:16,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:16,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:41:16,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:16,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-13 10:41:16,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:16,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 10:41:16,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:16,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 10:41:16,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:16,781 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2020-10-13 10:41:16,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:41:16,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:16,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:17,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:17,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:17,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:17,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 10:41:17,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:41:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:41:17,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:17,246 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 10:41:17,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499857805] [2020-10-13 10:41:17,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:41:17,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-13 10:41:17,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221948247] [2020-10-13 10:41:17,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-13 10:41:17,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:41:17,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-13 10:41:17,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=550, Unknown=0, NotChecked=0, Total=600 [2020-10-13 10:41:17,250 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 25 states. [2020-10-13 10:41:18,303 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2020-10-13 10:41:18,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:41:18,816 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2020-10-13 10:41:18,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 10:41:18,817 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 52 [2020-10-13 10:41:18,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:41:18,819 INFO L225 Difference]: With dead ends: 51 [2020-10-13 10:41:18,819 INFO L226 Difference]: Without dead ends: 49 [2020-10-13 10:41:18,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=110, Invalid=1150, Unknown=0, NotChecked=0, Total=1260 [2020-10-13 10:41:18,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-13 10:41:18,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2020-10-13 10:41:18,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-13 10:41:18,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2020-10-13 10:41:18,830 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 52 [2020-10-13 10:41:18,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:41:18,830 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2020-10-13 10:41:18,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-13 10:41:18,830 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2020-10-13 10:41:18,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-13 10:41:18,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:41:18,831 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] [2020-10-13 10:41:18,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 10:41:18,832 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:41:18,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:41:18,832 INFO L82 PathProgramCache]: Analyzing trace with hash -2079870611, now seen corresponding path program 1 times [2020-10-13 10:41:18,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:41:18,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1917878026] [2020-10-13 10:41:18,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:41:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:18,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:19,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:19,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:23,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:23,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-13 10:41:23,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:41:23,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 10:41:23,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:23,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 10:41:23,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:41:23,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 10:41:23,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:23,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:41:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:23,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:23,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:23,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:41:23,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:23,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:41:23,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:23,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:23,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:23,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:23,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:24,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:41:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:24,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:24,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:24,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:41:24,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:24,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-13 10:41:24,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:24,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 10:41:24,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:24,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 10:41:24,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:24,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:41:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:24,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:24,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:24,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:24,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:24,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 10:41:24,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:41:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:41:24,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:24,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:41:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:24,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:24,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:24,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:24,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:24,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 10:41:24,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:24,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:41:24,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:24,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:41:24,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:24,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:41:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:24,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:24,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:24,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:41:24,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:24,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-13 10:41:24,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:24,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 10:41:24,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:24,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 10:41:24,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:26,379 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2020-10-13 10:41:28,867 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 205 DAG size of output: 124 [2020-10-13 10:41:36,369 WARN L193 SmtUtils]: Spent 6.78 s on a formula simplification. DAG size of input: 396 DAG size of output: 189 [2020-10-13 10:41:37,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:41:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:37,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:37,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:37,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:37,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:37,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 10:41:37,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:37,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 10:41:37,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:37,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:41:37,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:37,441 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 10:41:37,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1917878026] [2020-10-13 10:41:37,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:41:37,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-13 10:41:37,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944626238] [2020-10-13 10:41:37,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-13 10:41:37,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:41:37,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-13 10:41:37,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2020-10-13 10:41:37,443 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand 28 states. [2020-10-13 10:41:40,715 WARN L193 SmtUtils]: Spent 2.71 s on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 10:41:44,222 WARN L193 SmtUtils]: Spent 2.61 s on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 10:41:46,503 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-10-13 10:41:47,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:41:47,728 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2020-10-13 10:41:47,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 10:41:47,729 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 52 [2020-10-13 10:41:47,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:41:47,731 INFO L225 Difference]: With dead ends: 50 [2020-10-13 10:41:47,731 INFO L226 Difference]: Without dead ends: 47 [2020-10-13 10:41:47,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=145, Invalid=1415, Unknown=0, NotChecked=0, Total=1560 [2020-10-13 10:41:47,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-13 10:41:47,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2020-10-13 10:41:47,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-13 10:41:47,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2020-10-13 10:41:47,745 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 52 [2020-10-13 10:41:47,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:41:47,745 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2020-10-13 10:41:47,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-13 10:41:47,745 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2020-10-13 10:41:47,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-13 10:41:47,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:41:47,747 INFO L422 BasicCegarLoop]: trace histogram [3, 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 10:41:47,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 10:41:47,747 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:41:47,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:41:47,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1594209454, now seen corresponding path program 2 times [2020-10-13 10:41:47,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:41:47,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765973544] [2020-10-13 10:41:47,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:41:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:47,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:49,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:52,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:52,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 10:41:52,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:41:52,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4329 [2020-10-13 10:41:52,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:52,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 10:41:52,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:41:52,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 10:41:52,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:52,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:41:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:52,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:52,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:52,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:41:52,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:52,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:41:52,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:52,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:41:52,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:52,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:41:52,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:52,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:41:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:52,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:52,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:52,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:41:52,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:52,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-13 10:41:52,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:52,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 10:41:52,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:52,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 10:41:52,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:41:53,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:41:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:53,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:53,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:53,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:53,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:53,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 10:41:53,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:53,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:41:53,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:41:53,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 10:41:53,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:53,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:41:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:53,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:53,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:53,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:53,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:53,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 10:41:53,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:53,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 10:41:53,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:53,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:41:53,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:53,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:41:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:53,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:53,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:53,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:41:53,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:53,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-13 10:41:53,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:53,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:41:53,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:53,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 10:41:53,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:54,219 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2020-10-13 10:41:54,689 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2020-10-13 10:41:55,230 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 82 [2020-10-13 10:41:55,820 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 81 [2020-10-13 10:41:56,369 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 72 [2020-10-13 10:41:56,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:41:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:41:56,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:41:56,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:41:56,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:41:56,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:41:56,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 10:41:56,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:41:56,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 10:41:56,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:41:56,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:41:56,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:41:57,330 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 54 [2020-10-13 10:41:57,357 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 10:41:57,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765973544] [2020-10-13 10:41:57,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:41:57,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-13 10:41:57,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6427663] [2020-10-13 10:41:57,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-13 10:41:57,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:41:57,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-13 10:41:57,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=929, Unknown=0, NotChecked=0, Total=992 [2020-10-13 10:41:57,359 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 32 states. [2020-10-13 10:41:58,282 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2020-10-13 10:42:00,340 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 114 [2020-10-13 10:42:01,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:42:01,537 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2020-10-13 10:42:01,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-13 10:42:01,538 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 54 [2020-10-13 10:42:01,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:42:01,539 INFO L225 Difference]: With dead ends: 54 [2020-10-13 10:42:01,539 INFO L226 Difference]: Without dead ends: 52 [2020-10-13 10:42:01,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=168, Invalid=2282, Unknown=0, NotChecked=0, Total=2450 [2020-10-13 10:42:01,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-13 10:42:01,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-10-13 10:42:01,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-13 10:42:01,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2020-10-13 10:42:01,549 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 54 [2020-10-13 10:42:01,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:42:01,550 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2020-10-13 10:42:01,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-13 10:42:01,550 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2020-10-13 10:42:01,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-13 10:42:01,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:42:01,551 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:42:01,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 10:42:01,551 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:42:01,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:42:01,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1594211128, now seen corresponding path program 2 times [2020-10-13 10:42:01,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:42:01,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1027719262] [2020-10-13 10:42:01,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:42:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:01,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:02,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:03,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:03,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 10:42:03,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:42:03,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2093 [2020-10-13 10:42:03,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:03,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 10:42:03,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:42:03,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 10:42:03,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:42:03,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:42:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:03,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:03,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:03,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:42:03,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:03,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:42:03,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:03,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:42:03,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:42:03,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:42:03,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:42:03,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:42:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:03,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:03,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:03,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:42:03,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:03,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-13 10:42:03,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:03,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 10:42:03,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:42:03,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 10:42:03,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:42:04,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:42:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:04,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:04,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:04,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:42:04,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:04,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 10:42:04,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:04,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:42:04,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:42:04,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:42:04,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:42:04,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:42:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:04,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:04,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:04,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:42:04,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:04,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 10:42:04,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:04,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:42:04,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:42:04,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:42:04,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:42:04,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:42:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:04,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:04,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:04,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:42:04,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:04,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-13 10:42:04,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:04,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:42:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:42:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 10:42:04,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:42:05,092 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2020-10-13 10:42:05,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:42:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:05,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:05,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:05,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:42:05,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:05,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 10:42:05,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:05,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 10:42:05,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:42:05,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:42:05,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:42:05,625 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 10:42:05,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1027719262] [2020-10-13 10:42:05,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:42:05,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-13 10:42:05,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6865416] [2020-10-13 10:42:05,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-13 10:42:05,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:42:05,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-13 10:42:05,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=810, Unknown=0, NotChecked=0, Total=870 [2020-10-13 10:42:05,628 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand 30 states. [2020-10-13 10:42:06,201 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-10-13 10:42:07,176 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-13 10:42:07,551 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-10-13 10:42:07,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:42:07,898 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2020-10-13 10:42:07,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 10:42:07,899 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 54 [2020-10-13 10:42:07,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:42:07,900 INFO L225 Difference]: With dead ends: 52 [2020-10-13 10:42:07,901 INFO L226 Difference]: Without dead ends: 49 [2020-10-13 10:42:07,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=152, Invalid=1828, Unknown=0, NotChecked=0, Total=1980 [2020-10-13 10:42:07,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-13 10:42:07,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2020-10-13 10:42:07,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-13 10:42:07,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-10-13 10:42:07,911 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 54 [2020-10-13 10:42:07,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:42:07,911 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-10-13 10:42:07,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-13 10:42:07,911 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-10-13 10:42:07,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-13 10:42:07,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:42:07,912 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 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 10:42:07,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 10:42:07,912 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:42:07,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:42:07,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1268085741, now seen corresponding path program 3 times [2020-10-13 10:42:07,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:42:07,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220426058] [2020-10-13 10:42:07,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:42:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:07,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:09,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:09,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:09,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 10:42:09,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:42:09,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1595 [2020-10-13 10:42:09,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:09,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 10:42:09,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:42:09,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 10:42:09,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:42:10,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:42:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:10,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:10,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:10,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:42:10,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:10,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:42:10,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:10,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:42:10,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:42:10,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:42:10,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:42:10,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:42:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:10,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:10,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:10,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:42:10,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:10,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-13 10:42:10,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:10,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:42:10,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:42:10,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 10:42:10,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:42:10,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:42:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:10,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:10,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:10,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:42:10,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:10,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 10:42:10,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:10,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:42:10,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:42:10,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:42:10,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:42:10,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:42:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:10,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:10,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:10,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:42:10,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:10,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 10:42:10,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:10,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 10:42:10,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:42:10,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:42:10,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:42:11,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:42:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:42:11,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:42:11,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:42:11,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:42:11,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:42:11,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-13 10:42:11,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:42:11,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 10:42:11,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:42:11,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 10:42:11,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:42:22,452 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 54 [2020-10-13 10:42:42,835 WARN L193 SmtUtils]: Spent 19.10 s on a formula simplification. DAG size of input: 827 DAG size of output: 199 [2020-10-13 10:43:41,935 WARN L193 SmtUtils]: Spent 56.56 s on a formula simplification. DAG size of input: 1891 DAG size of output: 335 [2020-10-13 10:43:45,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:43:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:43:45,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:43:45,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:43:45,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:43:45,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:43:45,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 10:43:45,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:43:45,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 10:43:45,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:43:45,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:43:45,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:43:45,781 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 10:43:45,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220426058] [2020-10-13 10:43:45,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:43:45,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-13 10:43:45,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356877463] [2020-10-13 10:43:45,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-13 10:43:45,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:43:45,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-13 10:43:45,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=972, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 10:43:45,784 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 33 states. [2020-10-13 10:43:50,824 WARN L193 SmtUtils]: Spent 4.22 s on a formula simplification that was a NOOP. DAG size: 313 [2020-10-13 10:43:56,533 WARN L193 SmtUtils]: Spent 4.38 s on a formula simplification that was a NOOP. DAG size: 320 [2020-10-13 10:44:00,328 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 54 [2020-10-13 10:44:03,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:44:03,495 INFO L93 Difference]: Finished difference Result 77 states and 85 transitions. [2020-10-13 10:44:03,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-13 10:44:03,498 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 56 [2020-10-13 10:44:03,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:44:03,500 INFO L225 Difference]: With dead ends: 77 [2020-10-13 10:44:03,500 INFO L226 Difference]: Without dead ends: 72 [2020-10-13 10:44:03,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 97.7s TimeCoverageRelationStatistics Valid=200, Invalid=2350, Unknown=0, NotChecked=0, Total=2550 [2020-10-13 10:44:03,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-13 10:44:03,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 65. [2020-10-13 10:44:03,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-13 10:44:03,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 72 transitions. [2020-10-13 10:44:03,515 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 72 transitions. Word has length 56 [2020-10-13 10:44:03,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:44:03,516 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 72 transitions. [2020-10-13 10:44:03,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-13 10:44:03,516 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 72 transitions. [2020-10-13 10:44:03,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-13 10:44:03,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:44:03,517 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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 10:44:03,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 10:44:03,518 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:44:03,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:44:03,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1268084067, now seen corresponding path program 3 times [2020-10-13 10:44:03,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:44:03,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1075836212] [2020-10-13 10:44:03,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:44:03,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:44:03,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:03,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:03,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:04,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:44:04,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 10:44:04,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:44:04,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 949 [2020-10-13 10:44:04,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:44:04,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 10:44:04,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 10:44:04,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 10:44:04,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:44:04,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:44:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:44:04,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:04,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:44:04,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:44:04,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:44:04,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:44:04,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:44:04,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:44:04,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:44:04,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:44:04,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:44:04,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:44:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:44:04,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:04,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:44:04,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:44:04,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:44:04,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 10:44:04,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:44:04,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:44:04,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:44:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 10:44:04,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:44:04,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:44:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:44:04,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:04,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:44:04,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:44:04,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:44:04,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 10:44:04,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:44:04,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:44:04,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:44:04,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:44:04,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:44:04,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:44:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:44:05,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:05,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:44:05,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:44:05,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:44:05,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 10:44:05,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:44:05,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:44:05,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:44:05,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:44:05,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:44:05,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 10:44:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:44:05,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:05,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:44:05,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:44:05,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:44:05,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 10:44:05,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:44:05,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:44:05,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:44:05,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 10:44:05,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:44:05,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:44:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:44:05,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:05,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:44:05,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:44:05,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:44:05,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 10:44:05,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:44:05,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:44:05,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:44:05,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:44:05,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:44:05,160 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-13 10:44:05,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1075836212] [2020-10-13 10:44:05,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:44:05,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 10:44:05,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503677984] [2020-10-13 10:44:05,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 10:44:05,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:44:05,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 10:44:05,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-10-13 10:44:05,164 INFO L87 Difference]: Start difference. First operand 65 states and 72 transitions. Second operand 16 states. [2020-10-13 10:44:05,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:44:05,954 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2020-10-13 10:44:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 10:44:05,955 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 56 [2020-10-13 10:44:05,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:44:05,957 INFO L225 Difference]: With dead ends: 72 [2020-10-13 10:44:05,957 INFO L226 Difference]: Without dead ends: 56 [2020-10-13 10:44:05,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2020-10-13 10:44:05,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-13 10:44:05,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 53. [2020-10-13 10:44:05,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-13 10:44:05,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2020-10-13 10:44:05,967 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 56 [2020-10-13 10:44:05,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:44:05,967 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2020-10-13 10:44:05,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 10:44:05,968 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2020-10-13 10:44:05,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-13 10:44:05,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:44:05,968 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 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 10:44:05,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 10:44:05,969 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:44:05,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:44:05,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1624986004, now seen corresponding path program 4 times [2020-10-13 10:44:05,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:44:05,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823434180] [2020-10-13 10:44:05,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:44:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:44:05,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:06,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:07,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:08,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:10,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:44:11,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-13 10:44:11,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 10:44:11,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-13 10:44:11,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:44:11,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:44:11,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 10:44:11,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 10:44:11,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:44:11,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:44:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:44:11,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:11,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:44:11,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:44:11,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:44:11,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:44:11,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:44:11,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:44:11,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:44:11,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:44:11,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:44:11,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:44:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:44:11,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:11,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:44:11,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-13 10:44:11,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:44:11,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-13 10:44:11,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:44:11,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:44:11,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 10:44:11,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 10:44:11,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:44:11,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:44:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:44:11,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:11,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:44:11,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:44:11,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:44:11,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:44:11,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:44:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:44:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:44:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:44:11,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:44:11,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 10:44:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:44:11,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:11,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:44:11,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:44:11,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:44:11,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:44:11,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:44:11,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:44:11,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:44:11,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:44:11,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:44:11,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 10:44:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:44:11,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:11,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:44:11,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:44:11,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:44:11,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:44:11,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:44:11,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:44:11,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:44:11,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:44:11,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:44:11,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 10:44:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:44:11,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:11,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:44:11,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 10:44:11,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:44:11,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 10:44:11,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:44:11,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:44:11,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 10:44:11,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:44:11,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:44:11,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:44:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:44:11,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:44:11,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:44:11,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:44:11,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:44:11,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:44:11,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:44:11,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:44:11,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:44:11,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:44:11,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:44:11,290 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-10-13 10:44:11,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823434180] [2020-10-13 10:44:11,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:44:11,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-13 10:44:11,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777933657] [2020-10-13 10:44:11,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 10:44:11,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:44:11,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 10:44:11,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-13 10:44:11,293 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand 9 states. [2020-10-13 10:44:11,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:44:11,515 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2020-10-13 10:44:11,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 10:44:11,520 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-10-13 10:44:11,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:44:11,520 INFO L225 Difference]: With dead ends: 58 [2020-10-13 10:44:11,521 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 10:44:11,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-13 10:44:11,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 10:44:11,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 10:44:11,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 10:44:11,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 10:44:11,523 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2020-10-13 10:44:11,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:44:11,523 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 10:44:11,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 10:44:11,523 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 10:44:11,523 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 10:44:11,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 10:44:11,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 10:44:11,676 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 445 DAG size of output: 268 [2020-10-13 10:44:11,916 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 266 [2020-10-13 10:44:12,121 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-10-13 10:44:16,155 WARN L193 SmtUtils]: Spent 3.97 s on a formula simplification. DAG size of input: 268 DAG size of output: 188 [2020-10-13 10:44:16,650 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2020-10-13 10:44:16,965 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 55 [2020-10-13 10:44:20,635 WARN L193 SmtUtils]: Spent 3.56 s on a formula simplification. DAG size of input: 264 DAG size of output: 211 [2020-10-13 10:44:21,902 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 183 DAG size of output: 163 [2020-10-13 10:44:21,908 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 10:44:21,909 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 10:44:21,909 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 10:44:21,909 INFO L271 CegarLoopResult]: At program point L561(line 561) the Hoare annotation is: true [2020-10-13 10:44:21,909 INFO L271 CegarLoopResult]: At program point myexitENTRY(lines 560 562) the Hoare annotation is: true [2020-10-13 10:44:21,909 INFO L268 CegarLoopResult]: For program point myexitEXIT(lines 560 562) no Hoare annotation was computed. [2020-10-13 10:44:21,909 INFO L268 CegarLoopResult]: For program point sll_destroyEXIT(lines 581 587) no Hoare annotation was computed. [2020-10-13 10:44:21,909 INFO L271 CegarLoopResult]: At program point L582-2(lines 582 586) the Hoare annotation is: true [2020-10-13 10:44:21,910 INFO L264 CegarLoopResult]: At program point sll_destroyENTRY(lines 581 587) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-10-13 10:44:21,910 INFO L268 CegarLoopResult]: For program point L582-3(lines 581 587) no Hoare annotation was computed. [2020-10-13 10:44:21,910 INFO L268 CegarLoopResult]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2020-10-13 10:44:21,910 INFO L268 CegarLoopResult]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2020-10-13 10:44:21,910 INFO L268 CegarLoopResult]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2020-10-13 10:44:21,910 INFO L264 CegarLoopResult]: At program point L575(line 575) the Hoare annotation is: (let ((.cse0 (= sll_create_~head~0.base 0)) (.cse1 (= |sll_create_#in~data| sll_create_~data)) (.cse3 (= sll_create_~head~0.offset 0))) (or (let ((.cse2 (+ sll_create_~len 1))) (and (<= (+ sll_create_~head~0.base 1) |#StackHeapBarrier|) (= (select (select |#memory_$Pointer$.base| sll_create_~head~0.base) 4) 0) (not .cse0) .cse1 (<= .cse2 |sll_create_#in~len|) (= (select |#valid| sll_create_~head~0.base) 1) .cse3 (= (select (select |#memory_$Pointer$.offset| sll_create_~head~0.base) 4) 0) (<= |sll_create_#in~len| .cse2) (= (select (select |#memory_int| sll_create_~head~0.base) 0) |sll_create_#in~data|))) (not (<= |sll_create_#in~len| 2)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) .cse0 (= |#memory_int| |old(#memory_int)|) .cse1 (= |sll_create_#in~len| sll_create_~len) .cse3 (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) (not (<= 2 |sll_create_#in~len|)))) [2020-10-13 10:44:21,910 INFO L268 CegarLoopResult]: For program point sll_createEXIT(lines 572 580) no Hoare annotation was computed. [2020-10-13 10:44:21,911 INFO L268 CegarLoopResult]: For program point L575-1(line 575) no Hoare annotation was computed. [2020-10-13 10:44:21,911 INFO L268 CegarLoopResult]: For program point L574-2(lines 574 578) no Hoare annotation was computed. [2020-10-13 10:44:21,911 INFO L264 CegarLoopResult]: At program point L574-3(lines 574 578) the Hoare annotation is: (let ((.cse10 (= sll_create_~head~0.base 0)) (.cse3 (select |#memory_$Pointer$.base| sll_create_~head~0.base))) (let ((.cse0 (<= (+ sll_create_~head~0.base 1) |#StackHeapBarrier|)) (.cse6 (select .cse3 4)) (.cse2 (not .cse10)) (.cse7 (= |sll_create_#in~data| (select (select |#memory_int| sll_create_~head~0.base) sll_create_~head~0.offset))) (.cse4 (= (select |#valid| sll_create_~head~0.base) 1)) (.cse8 (= (select (select |#memory_$Pointer$.offset| sll_create_~head~0.base) 4) 0)) (.cse1 (= |sll_create_#in~data| sll_create_~data)) (.cse9 (= sll_create_~head~0.offset 0))) (or (let ((.cse5 (+ sll_create_~len 2))) (and .cse0 .cse1 .cse2 (not (= (select .cse3 (+ sll_create_~head~0.offset 4)) 0)) .cse4 (<= |sll_create_#in~len| .cse5) (= (select (select |#memory_$Pointer$.offset| .cse6) 4) 0) (<= (+ .cse6 1) |#StackHeapBarrier|) .cse7 (= (select (select |#memory_$Pointer$.base| .cse6) 4) 0) (<= .cse5 |sll_create_#in~len|) (= (select |#valid| .cse6) 1) (<= 0 sll_create_~head~0.offset) .cse8 (<= sll_create_~head~0.offset 0) (= |sll_create_#in~data| (select (select |#memory_int| .cse6) 0)))) (and .cse0 (= |sll_create_#in~len| (+ sll_create_~len 1)) (= .cse6 0) .cse1 .cse2 .cse7 .cse4 .cse9 .cse8) (not (<= |sll_create_#in~len| 2)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) .cse10 (= |#memory_int| |old(#memory_int)|) .cse1 (= |sll_create_#in~len| sll_create_~len) .cse9 (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) (not (<= 2 |sll_create_#in~len|))))) [2020-10-13 10:44:21,911 INFO L268 CegarLoopResult]: For program point L574-4(lines 574 578) no Hoare annotation was computed. [2020-10-13 10:44:21,912 INFO L264 CegarLoopResult]: At program point sll_createENTRY(lines 572 580) the Hoare annotation is: (or (not (<= |sll_create_#in~len| 2)) (not (<= 2 |sll_create_#in~len|)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|))) [2020-10-13 10:44:21,912 INFO L268 CegarLoopResult]: For program point sll_createFINAL(lines 572 580) no Hoare annotation was computed. [2020-10-13 10:44:21,912 INFO L268 CegarLoopResult]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2020-10-13 10:44:21,912 INFO L268 CegarLoopResult]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2020-10-13 10:44:21,912 INFO L268 CegarLoopResult]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2020-10-13 10:44:21,912 INFO L268 CegarLoopResult]: For program point L597-1(lines 597 601) no Hoare annotation was computed. [2020-10-13 10:44:21,912 INFO L264 CegarLoopResult]: At program point sll_insertENTRY(lines 588 603) the Hoare annotation is: (or (not (<= 1 |sll_insert_#in~index|)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|))) [2020-10-13 10:44:21,913 INFO L264 CegarLoopResult]: At program point L592-2(lines 592 596) the Hoare annotation is: (let ((.cse42 (select |old(#memory_$Pointer$.offset)| |sll_insert_#in~head.base|))) (let ((.cse28 (select (select |old(#memory_$Pointer$.base)| |sll_insert_#in~head.base|) |sll_insert_#in~head.offset|)) (.cse17 (= sll_insert_~new_node~0.base |sll_insert_#in~head.base|)) (.cse34 (select .cse42 |sll_insert_#in~head.offset|)) (.cse46 (select |old(#valid)| sll_insert_~new_node~0.base)) (.cse47 (@diff |old(#memory_$Pointer$.offset)| |#memory_$Pointer$.offset|)) (.cse40 (@diff |old(#memory_$Pointer$.base)| |#memory_$Pointer$.base|)) (.cse41 (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|))) (let ((.cse3 (or (= .cse40 sll_insert_~new_node~0.base) .cse41)) (.cse22 (= (select (select |#memory_int| sll_insert_~new_node~0.base) 0) |sll_insert_#in~data|)) (.cse20 (= sll_insert_~snd_to_last~0.offset 0)) (.cse16 (= sll_insert_~snd_to_last~0.base 0)) (.cse26 (= |#memory_$Pointer$.offset| (store |old(#memory_$Pointer$.offset)| .cse47 (select |#memory_$Pointer$.offset| .cse47)))) (.cse6 (let ((.cse48 (@diff |old(#memory_int)| |#memory_int|))) (and (or (= .cse48 sll_insert_~new_node~0.base) (= |#memory_int| |old(#memory_int)|)) (= (store |old(#memory_int)| .cse48 (select |#memory_int| .cse48)) |#memory_int|)))) (.cse27 (= .cse46 0)) (.cse29 (not (= sll_insert_~new_node~0.base 0))) (.cse30 (<= (+ sll_insert_~new_node~0.base 1) |#StackHeapBarrier|)) (.cse31 (= sll_insert_~new_node~0.offset 0)) (.cse18 (not (= (+ sll_insert_~new_node~0.offset 4) |sll_insert_#in~head.offset|))) (.cse33 (or (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= .cse47 sll_insert_~new_node~0.base))) (.cse24 (<= (+ sll_insert_~index 1) |sll_insert_#in~index|)) (.cse0 (= |#memory_$Pointer$.base| (store |old(#memory_$Pointer$.base)| .cse40 (select |#memory_$Pointer$.base| .cse40)))) (.cse25 (= sll_insert_~head.base |sll_insert_#in~head.base|)) (.cse4 (not (= .cse34 0))) (.cse39 (select |#memory_$Pointer$.offset| |sll_insert_#in~head.base|)) (.cse9 (not .cse17)) (.cse38 (select (select |#memory_$Pointer$.base| |sll_insert_#in~head.base|) |sll_insert_#in~head.offset|)) (.cse8 (= .cse28 |sll_insert_#in~head.base|)) (.cse5 (<= (+ |sll_insert_#in~head.base| 1) |#StackHeapBarrier|)) (.cse32 (= sll_insert_~head.offset |sll_insert_#in~head.offset|))) (or (let ((.cse1 (select |old(#memory_$Pointer$.offset)| sll_insert_~snd_to_last~0.base)) (.cse23 (not .cse20)) (.cse7 (= sll_insert_~snd_to_last~0.base sll_insert_~new_node~0.base)) (.cse19 (select |#memory_$Pointer$.base| sll_insert_~snd_to_last~0.base)) (.cse2 (+ sll_insert_~snd_to_last~0.offset 4))) (and .cse0 (or (= sll_insert_~last~0.offset (select .cse1 .cse2)) (<= (+ sll_insert_~snd_to_last~0.base 1) |#StackHeapBarrier|)) .cse3 (or .cse4 .cse5 .cse6 .cse7 .cse8) (let ((.cse14 (<= sll_insert_~snd_to_last~0.offset 0)) (.cse15 (<= 0 sll_insert_~snd_to_last~0.offset)) (.cse10 (store |#memory_$Pointer$.base| sll_insert_~snd_to_last~0.base (store .cse19 .cse2 sll_insert_~new_node~0.base))) (.cse13 (store |#memory_$Pointer$.offset| sll_insert_~snd_to_last~0.base (store (select |#memory_$Pointer$.offset| sll_insert_~snd_to_last~0.base) .cse2 sll_insert_~new_node~0.offset)))) (or (let ((.cse11 (= |sll_insert_#in~head.offset| .cse2)) (.cse12 (= sll_insert_~snd_to_last~0.base |sll_insert_#in~head.base|))) (and (or (and .cse9 (= sll_insert_~snd_to_last~0.base (select (select .cse10 |sll_insert_#in~head.base|) |sll_insert_#in~head.offset|))) (and .cse11 .cse12 (not .cse7))) (or (not (= (select (select .cse13 |sll_insert_#in~head.base|) |sll_insert_#in~head.offset|) 0)) (and .cse11 .cse12) (and .cse14 .cse15) .cse7))) (and .cse16 .cse14 .cse15) (and .cse17 .cse18 (or (not (= (select (select .cse10 sll_insert_~new_node~0.base) |sll_insert_#in~head.offset|) 0)) (not (= (select (select .cse13 sll_insert_~new_node~0.base) |sll_insert_#in~head.offset|) 0)))))) (or .cse20 .cse4 .cse5 .cse7) (or (let ((.cse21 (= .cse2 0))) (and (or .cse21 (= (select |old(#memory_int)| sll_insert_~snd_to_last~0.base) (select |#memory_int| sll_insert_~snd_to_last~0.base)) .cse7) (or (not .cse21) .cse4))) .cse5 .cse8) (or .cse22 .cse5 .cse23 .cse7 .cse8) .cse24 .cse25 (or (= sll_insert_~last~0.offset (select .cse1 4)) .cse23 .cse7) .cse26 (= (select .cse19 .cse2) sll_insert_~last~0.base) .cse27 (or (= sll_insert_~snd_to_last~0.base .cse28) .cse5) .cse29 .cse30 .cse31 .cse32 .cse33)) (and .cse0 .cse3 (or (and (= .cse28 sll_insert_~last~0.base) (or (= sll_insert_~last~0.offset 0) (= .cse34 sll_insert_~last~0.offset))) .cse5) (or .cse5 .cse22) .cse20 (<= |sll_insert_#in~index| sll_insert_~index) (<= sll_insert_~index |sll_insert_#in~index|) .cse25 .cse16 .cse26 (or .cse5 .cse6) .cse27 .cse29 .cse30 .cse31 (let ((.cse36 (<= sll_insert_~last~0.offset 0)) (.cse37 (<= 0 sll_insert_~last~0.offset))) (let ((.cse35 (and .cse36 .cse37))) (or (and .cse17 (= (select (select |#memory_$Pointer$.base| sll_insert_~new_node~0.base) |sll_insert_#in~head.offset|) sll_insert_~last~0.base) .cse18 (or .cse35 (not (= (select (select |#memory_$Pointer$.offset| sll_insert_~new_node~0.base) |sll_insert_#in~head.offset|) 0)))) (and (= 0 sll_insert_~last~0.base) .cse36 .cse37) (and (= .cse38 sll_insert_~last~0.base) .cse9 (or .cse35 (not (= (select .cse39 |sll_insert_#in~head.offset|) 0))))))) .cse32 .cse33) (not (<= 1 |sll_insert_#in~index|)) (and (or (<= (+ .cse40 1) |#StackHeapBarrier|) .cse41) .cse24 .cse0 .cse25 (or (and (or (= .cse28 sll_insert_~new_node~0.base) .cse4 (let ((.cse44 (select |old(#memory_int)| .cse28)) (.cse45 (select |#memory_int| .cse38))) (let ((.cse43 (@diff .cse44 .cse45))) (and (= .cse39 .cse42) .cse9 (or (not (= .cse43 0)) (= .cse44 .cse45)) (= .cse45 (store .cse44 .cse43 (select .cse45 .cse43)))))) .cse8) (not (= .cse46 1))) .cse5) (<= 2 |sll_insert_#in~index|) .cse32))))) [2020-10-13 10:44:21,913 INFO L264 CegarLoopResult]: At program point L589(line 589) the Hoare annotation is: (or (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (<= |sll_insert_#in~index| sll_insert_~index) (= |old(#length)| |#length|) (<= sll_insert_~index |sll_insert_#in~index|) (= sll_insert_~head.base |sll_insert_#in~head.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |sll_insert_#in~data| sll_insert_~data) (= |old(#valid)| |#valid|) (= sll_insert_~head.offset |sll_insert_#in~head.offset|)) (not (<= 1 |sll_insert_#in~index|))) [2020-10-13 10:44:21,913 INFO L268 CegarLoopResult]: For program point L592-3(lines 588 603) no Hoare annotation was computed. [2020-10-13 10:44:21,913 INFO L268 CegarLoopResult]: For program point sll_insertEXIT(lines 588 603) no Hoare annotation was computed. [2020-10-13 10:44:21,913 INFO L268 CegarLoopResult]: For program point L589-1(line 589) no Hoare annotation was computed. [2020-10-13 10:44:21,913 INFO L268 CegarLoopResult]: For program point sll_insertFINAL(lines 588 603) no Hoare annotation was computed. [2020-10-13 10:44:21,913 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 10:44:21,913 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-13 10:44:21,914 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 10:44:21,914 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 10:44:21,914 INFO L264 CegarLoopResult]: At program point L611-2(lines 611 618) the Hoare annotation is: (let ((.cse8 (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (let ((.cse54 (select |#memory_$Pointer$.base| .cse8))) (let ((.cse53 (select .cse54 4)) (.cse57 (+ main_~ptr~0.offset 4))) (let ((.cse31 (select (select |#memory_$Pointer$.offset| main_~ptr~0.base) .cse57)) (.cse56 (select (select |#memory_$Pointer$.base| main_~ptr~0.base) .cse57)) (.cse47 (select |#memory_$Pointer$.base| .cse53))) (let ((.cse27 (select |#memory_$Pointer$.offset| main_~temp~2.base)) (.cse36 (= main_~ptr~0.base 0)) (.cse49 (select |#memory_$Pointer$.offset| .cse53)) (.cse51 (select .cse47 4)) (.cse34 (select |#memory_$Pointer$.base| main_~temp~2.base)) (.cse43 (+ main_~temp~2.offset 4)) (.cse40 (= main_~temp~2.base 0)) (.cse50 (select (select |#memory_$Pointer$.offset| .cse8) 4)) (.cse9 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (.cse23 (select |#memory_$Pointer$.base| .cse56)) (.cse41 (= .cse56 0)) (.cse14 (select |#memory_$Pointer$.offset| .cse56)) (.cse55 (+ .cse31 4))) (let ((.cse24 (select .cse14 .cse55)) (.cse6 (not .cse41)) (.cse7 (select |#memory_int| .cse56)) (.cse0 (select .cse23 .cse55)) (.cse2 (= .cse9 0)) (.cse4 (= main_~ptr~0.offset 0)) (.cse28 (= 0 main_~temp~2.offset)) (.cse3 (not (= (select .cse54 (+ .cse9 4)) 0))) (.cse5 (= (select (select |#memory_int| main_~ptr~0.base) main_~ptr~0.offset) main_~data~0)) (.cse11 (= .cse50 0)) (.cse32 (not .cse40)) (.cse12 (= .cse31 0)) (.cse29 (select .cse34 .cse43)) (.cse13 (= main_~len~0 2)) (.cse16 (not (= .cse51 0))) (.cse17 (= (select (select |#memory_int| .cse53) 0) main_~data~0)) (.cse38 (<= .cse9 0)) (.cse18 (= |main_~#s~0.offset| 0)) (.cse19 (let ((.cse52 (select .cse49 4))) (or (= main_~data~0 (select (select |#memory_int| .cse51) .cse52)) (and (= .cse52 0) (= .cse51 .cse53))))) (.cse21 (let ((.cse48 (+ .cse50 4))) (let ((.cse46 (select .cse49 .cse48)) (.cse44 (select .cse47 .cse48))) (or (let ((.cse45 (+ .cse46 4))) (and (= 0 (select (select |#memory_$Pointer$.offset| .cse44) .cse45)) (= (select (select |#memory_$Pointer$.base| .cse44) .cse45) 0))) (and (= .cse46 0) (= .cse44 0)))))) (.cse22 (not .cse36)) (.cse20 (<= (+ |#StackHeapBarrier| 1) |main_~#s~0.base|)) (.cse39 (<= 0 .cse9)) (.cse35 (select .cse27 .cse43)) (.cse33 (select |#memory_int| main_~temp~2.base))) (or (let ((.cse1 (+ .cse24 4)) (.cse10 (select .cse23 4)) (.cse15 (+ main_~count~0 2))) (and (= (select (select |#memory_$Pointer$.offset| .cse0) .cse1) 0) .cse2 .cse3 .cse4 .cse5 .cse6 (= main_~data~0 (select .cse7 0)) (= main_~data~0 (select (select |#memory_int| .cse8) .cse9)) (= (select (select |#memory_$Pointer$.base| .cse0) .cse1) 0) (not (= .cse10 0)) .cse11 .cse12 .cse13 (= main_~data~0 (select (select |#memory_int| .cse10) (select .cse14 4))) (<= main_~len~0 .cse15) .cse16 .cse17 (<= .cse15 main_~len~0) .cse18 (not (= .cse8 0)) .cse19 .cse20 .cse21 .cse22)) (let ((.cse25 (+ main_~count~0 1)) (.cse30 (+ .cse35 4)) (.cse26 (select .cse34 4))) (and (= .cse24 0) .cse3 .cse4 .cse5 .cse6 (<= .cse25 main_~len~0) .cse11 (<= main_~len~0 .cse25) .cse16 .cse17 (= main_~data~0 (select (select |#memory_int| .cse26) (select .cse27 4))) .cse18 .cse20 .cse28 (= (select (select |#memory_$Pointer$.offset| .cse29) .cse30) 0) (= main_~data~0 (select .cse7 .cse31)) (= (select (select |#memory_$Pointer$.base| .cse29) .cse30) 0) (= .cse0 0) .cse2 .cse32 (not (= .cse26 0)) .cse13 .cse19 .cse21 .cse22 (= main_~data~0 (select .cse33 0)))) (let ((.cse37 (+ main_~len~0 1))) (and .cse36 .cse3 .cse4 (<= main_~count~0 .cse37) .cse11 (<= .cse37 main_~count~0) .cse13 .cse16 .cse17 .cse38 .cse18 .cse19 .cse21 .cse20 .cse39 .cse28 .cse40)) (and .cse41 (<= main_~count~0 main_~len~0) .cse3 .cse5 (<= main_~len~0 main_~count~0) .cse11 .cse32 .cse12 (= .cse29 0) .cse13 .cse16 .cse17 .cse38 .cse18 .cse19 .cse21 .cse22 .cse20 .cse39 (= .cse35 0) (let ((.cse42 (select .cse33 main_~temp~2.offset))) (or (= |main_#t~mem13| .cse42) (= .cse42 main_~data~0))))))))))) [2020-10-13 10:44:21,914 INFO L268 CegarLoopResult]: For program point L611-3(lines 604 626) no Hoare annotation was computed. [2020-10-13 10:44:21,915 INFO L264 CegarLoopResult]: At program point L607(line 607) the Hoare annotation is: (let ((.cse38 (@diff |old(#memory_$Pointer$.offset)| |#memory_$Pointer$.offset|))) (let ((.cse37 (select |#memory_$Pointer$.offset| .cse38))) (let ((.cse45 (store |old(#memory_$Pointer$.offset)| .cse38 .cse37))) (let ((.cse4 (@diff .cse45 |#memory_$Pointer$.offset|))) (let ((.cse33 (select |#memory_$Pointer$.offset| .cse4))) (let ((.cse40 (store .cse45 .cse4 .cse33)) (.cse0 (@diff |old(#memory_$Pointer$.base)| |#memory_$Pointer$.base|))) (let ((.cse9 (select |old(#valid)| .cse0)) (.cse21 (@diff .cse40 |#memory_$Pointer$.offset|)) (.cse35 (select |old(#memory_$Pointer$.offset)| .cse38)) (.cse10 (select |old(#memory_$Pointer$.base)| .cse0)) (.cse1 (select |#memory_$Pointer$.base| .cse0))) (let ((.cse31 (select |old(#memory_$Pointer$.offset)| .cse4)) (.cse11 (@diff .cse10 .cse1)) (.cse36 (@diff .cse35 .cse37)) (.cse22 (= |#memory_$Pointer$.offset| .cse40)) (.cse42 (not (= (select |old(#valid)| .cse21) 1))) (.cse13 (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (.cse39 (not (= .cse9 1))) (.cse15 (select |old(#memory_$Pointer$.offset)| .cse21)) (.cse14 (select |#memory_$Pointer$.offset| .cse21))) (let ((.cse16 (@diff .cse15 .cse14)) (.cse18 (<= (+ .cse21 1) |#StackHeapBarrier|)) (.cse6 (or (= .cse4 .cse0) .cse13 .cse39)) (.cse20 (not (= (select |old(#valid)| .cse4) 1))) (.cse3 (or .cse22 .cse42)) (.cse30 (select .cse37 .cse36)) (.cse29 (<= (+ .cse38 1) |#StackHeapBarrier|)) (.cse12 (select .cse1 .cse11)) (.cse5 (@diff .cse31 .cse33)) (.cse7 (= |#memory_$Pointer$.offset| .cse45)) (.cse8 (<= (+ .cse4 1) |#StackHeapBarrier|)) (.cse19 (or (= .cse21 .cse0) .cse13 .cse39)) (.cse2 (not (= (select |old(#valid)| .cse38) 1))) (.cse28 (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (.cse34 (or (= .cse38 .cse0) .cse13 .cse39))) (and (= |#memory_$Pointer$.base| (store |old(#memory_$Pointer$.base)| .cse0 .cse1)) (or (and .cse2 .cse3 (not (= (select |old(#valid)| (select (select |#memory_$Pointer$.base| .cse4) .cse5)) 1)) .cse6) .cse7 .cse8) (or (= .cse9 0) (and (= (store .cse10 .cse11 .cse12) .cse1) (not (= .cse12 0))) .cse13) (or (let ((.cse17 (select .cse14 .cse16))) (and (= .cse14 (store .cse15 .cse16 .cse17)) (or (= .cse17 0) (= .cse14 .cse15)))) .cse18) (or (and .cse2 .cse19 .cse20 (not (= (select |old(#valid)| (select (select |#memory_$Pointer$.base| .cse21) .cse16)) 1))) .cse22 .cse18) (let ((.cse24 (select |old(#memory_$Pointer$.offset)| |sll_insert_#in~head.base|)) (.cse23 (select (select |old(#memory_$Pointer$.base)| |sll_insert_#in~head.base|) |sll_insert_#in~head.offset|))) (or (not (= (select |old(#valid)| .cse23) 1)) (not (= (select .cse24 |sll_insert_#in~head.offset|) 0)) (let ((.cse26 (select |old(#memory_int)| .cse23)) (.cse27 (select |#memory_int| (select (select |#memory_$Pointer$.base| |sll_insert_#in~head.base|) |sll_insert_#in~head.offset|)))) (let ((.cse25 (@diff .cse26 .cse27))) (and (= (select |#memory_$Pointer$.offset| |sll_insert_#in~head.base|) .cse24) (or (not (= .cse25 0)) (= .cse26 .cse27)) (= .cse27 (store .cse26 .cse25 (select .cse27 .cse25)))))) (<= (+ |sll_insert_#in~head.base| 1) |#StackHeapBarrier|) (= .cse23 |sll_insert_#in~head.base|))) (= main_~len~0 2) (or .cse28 .cse29 (= .cse30 0)) (or (<= (+ .cse0 1) |#StackHeapBarrier|) .cse13) (or (and (let ((.cse32 (select .cse33 4))) (or (= (select .cse31 4) .cse32) (= .cse32 0))) .cse6) .cse20 .cse7) (or .cse28 (and .cse34 (or .cse20 .cse7) .cse3 (= (store .cse35 .cse36 .cse30) .cse37) (not (= (select |old(#valid)| (select (select |#memory_$Pointer$.base| .cse38) .cse36)) 1))) .cse29) (or (and (or (not (= 4 .cse11)) (= (select (select |old(#memory_$Pointer$.offset)| .cse0) 4) (select (select |#memory_$Pointer$.offset| .cse12) 4))) (= (select (select |#memory_$Pointer$.base| .cse12) 4) (select .cse10 .cse11))) .cse13 .cse39) (= |#memory_$Pointer$.offset| (store .cse40 .cse21 .cse14)) (= |main_~#s~0.offset| 0) (<= (+ |#StackHeapBarrier| 1) |main_~#s~0.base|) (or (let ((.cse41 (select .cse33 .cse5))) (and (= .cse41 0) (= .cse33 (store .cse31 .cse5 .cse41)))) .cse7 .cse8) (or .cse22 .cse42 (and .cse19 (let ((.cse43 (select .cse14 4))) (or (= .cse43 (select .cse15 4)) (= .cse43 0))))) (or .cse2 .cse28 (and .cse34 (let ((.cse44 (select .cse37 4))) (or (= (select .cse35 4) .cse44) (= .cse44 0))))))))))))))) [2020-10-13 10:44:21,915 INFO L268 CegarLoopResult]: For program point L607-1(line 607) no Hoare annotation was computed. [2020-10-13 10:44:21,915 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 604 626) no Hoare annotation was computed. [2020-10-13 10:44:21,915 INFO L271 CegarLoopResult]: At program point L622(line 622) the Hoare annotation is: true [2020-10-13 10:44:21,915 INFO L268 CegarLoopResult]: For program point L622-1(line 622) no Hoare annotation was computed. [2020-10-13 10:44:21,915 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 604 626) no Hoare annotation was computed. [2020-10-13 10:44:21,916 INFO L264 CegarLoopResult]: At program point L620(lines 604 626) the Hoare annotation is: false [2020-10-13 10:44:21,916 INFO L264 CegarLoopResult]: At program point L608(line 608) the Hoare annotation is: (let ((.cse2 (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (let ((.cse1 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (.cse3 (select (select |#memory_$Pointer$.offset| .cse2) 4)) (.cse0 (select (select |#memory_$Pointer$.base| .cse2) 4))) (and (not (= |main_~#s~0.base| .cse0)) (= .cse1 0) (= main_~data~0 (select (select |#memory_int| .cse2) .cse1)) (= (select (select |#memory_$Pointer$.base| .cse0) (+ .cse3 4)) 0) (= .cse3 0) (= main_~len~0 2) (= (select (select |#memory_$Pointer$.offset| .cse0) 4) 0) (not (= .cse0 0)) (= (select |#valid| .cse2) 1) (= (select (select |#memory_int| .cse0) .cse3) main_~data~0) (= |main_~#s~0.offset| 0) (not (= .cse2 0)) (= (select |#valid| .cse0) 1) (<= (+ |#StackHeapBarrier| 1) |main_~#s~0.base|) (not (= |main_~#s~0.base| .cse2))))) [2020-10-13 10:44:21,916 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 624) no Hoare annotation was computed. [2020-10-13 10:44:21,916 INFO L268 CegarLoopResult]: For program point L608-1(line 608) no Hoare annotation was computed. [2020-10-13 10:44:21,916 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 604 626) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-13 10:44:21,916 INFO L268 CegarLoopResult]: For program point L613(lines 613 615) no Hoare annotation was computed. [2020-10-13 10:44:21,916 INFO L264 CegarLoopResult]: At program point node_createENTRY(lines 563 571) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-13 10:44:21,917 INFO L268 CegarLoopResult]: For program point node_createFINAL(lines 563 571) no Hoare annotation was computed. [2020-10-13 10:44:21,917 INFO L271 CegarLoopResult]: At program point L566(line 566) the Hoare annotation is: true [2020-10-13 10:44:21,917 INFO L268 CegarLoopResult]: For program point node_createEXIT(lines 563 571) no Hoare annotation was computed. [2020-10-13 10:44:21,917 INFO L268 CegarLoopResult]: For program point L565(lines 565 567) no Hoare annotation was computed. [2020-10-13 10:44:21,917 INFO L268 CegarLoopResult]: For program point L565-1(lines 565 567) no Hoare annotation was computed. [2020-10-13 10:44:21,929 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,930 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,930 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,931 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,931 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,931 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,932 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,932 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,932 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,933 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,933 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,934 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,934 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,934 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,934 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,936 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:44:21,936 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,937 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,937 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,937 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,937 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:44:21,938 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,938 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,938 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,938 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,939 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,939 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,939 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,939 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:44:21,939 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,940 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,940 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,940 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,940 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,941 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 10:44:21,941 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 10:44:21,941 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,941 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,941 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,942 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,944 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,944 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,945 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,945 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,945 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,946 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,946 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,946 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,946 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,947 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,947 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,947 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,947 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,948 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,948 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,948 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:44:21,949 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,949 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,949 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,949 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,950 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:44:21,950 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,950 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,950 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,951 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,951 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,951 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,951 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,951 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:44:21,952 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,952 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,952 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,952 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,953 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,953 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 10:44:21,953 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 10:44:21,953 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,953 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,954 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,954 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,956 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 10:44:21,960 INFO L168 Benchmark]: Toolchain (without parser) took 217541.07 ms. Allocated memory was 140.0 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 101.0 MB in the beginning and 653.6 MB in the end (delta: -552.6 MB). Peak memory consumption was 862.4 MB. Max. memory is 7.1 GB. [2020-10-13 10:44:21,961 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 10:44:21,961 INFO L168 Benchmark]: CACSL2BoogieTranslator took 644.94 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 100.8 MB in the beginning and 165.1 MB in the end (delta: -64.3 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-10-13 10:44:21,962 INFO L168 Benchmark]: Boogie Preprocessor took 78.49 ms. Allocated memory is still 202.9 MB. Free memory was 165.1 MB in the beginning and 162.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-13 10:44:21,962 INFO L168 Benchmark]: RCFGBuilder took 637.07 ms. Allocated memory is still 202.9 MB. Free memory was 162.4 MB in the beginning and 113.6 MB in the end (delta: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 7.1 GB. [2020-10-13 10:44:21,963 INFO L168 Benchmark]: TraceAbstraction took 216175.95 ms. Allocated memory was 202.9 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 112.9 MB in the beginning and 653.6 MB in the end (delta: -540.7 MB). Peak memory consumption was 811.5 MB. Max. memory is 7.1 GB. [2020-10-13 10:44:21,966 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 644.94 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 100.8 MB in the beginning and 165.1 MB in the end (delta: -64.3 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 78.49 ms. Allocated memory is still 202.9 MB. Free memory was 165.1 MB in the beginning and 162.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 637.07 ms. Allocated memory is still 202.9 MB. Free memory was 162.4 MB in the beginning and 113.6 MB in the end (delta: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216175.95 ms. Allocated memory was 202.9 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 112.9 MB in the beginning and 653.6 MB in the end (delta: -540.7 MB). Peak memory consumption was 811.5 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_$Pointer$.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_$Pointer$.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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - 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 #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_$Pointer$ - 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_$Pointer$ - 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 #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_$Pointer$ - 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_$Pointer$ - 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_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 624]: 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: 604]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 574]: Loop Invariant [2020-10-13 10:44:21,976 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,976 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,977 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,977 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,977 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,977 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,978 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,978 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,978 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,978 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,979 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,979 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,979 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,979 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,979 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,980 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:44:21,980 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,980 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,980 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,981 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,981 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:44:21,981 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,981 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,981 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,982 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,982 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,982 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,982 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,982 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:44:21,983 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,983 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,983 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,983 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,983 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,984 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 10:44:21,984 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 10:44:21,984 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,984 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,984 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,985 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,985 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,986 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,986 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,986 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,987 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,987 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,987 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,987 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,988 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,988 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,988 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,988 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,988 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:44:21,989 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,989 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:44:21,989 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:44:21,989 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,990 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,990 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,990 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,990 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:44:21,990 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,991 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,991 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,991 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,991 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,991 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,992 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,992 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-10-13 10:44:21,992 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,992 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,992 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,993 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,993 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,993 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 10:44:21,993 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-13 10:44:21,993 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,994 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-13 10:44:21,994 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:44:21,994 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: ((((((((((((((((((head + 1 <= unknown-#StackHeapBarrier-unknown && \old(data) == data) && !(head == 0)) && !(#memory_$Pointer$[head][head + 4] == 0)) && \valid[head] == 1) && \old(len) <= len + 2) && #memory_$Pointer$[#memory_$Pointer$[head][4]][4] == 0) && #memory_$Pointer$[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)) && \valid[#memory_$Pointer$[head][4]] == 1) && 0 <= head) && #memory_$Pointer$[head][4] == 0) && head <= 0) && \old(data) == unknown-#memory_int-unknown[#memory_$Pointer$[head][4]][0]) || ((((((((head + 1 <= unknown-#StackHeapBarrier-unknown && \old(len) == len + 1) && #memory_$Pointer$[head][4] == 0) && \old(data) == data) && !(head == 0)) && \old(data) == unknown-#memory_int-unknown[head][head]) && \valid[head] == 1) && head == 0) && #memory_$Pointer$[head][4] == 0)) || !(\old(len) <= 2)) || ((((((((#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)) || !(2 <= \old(len)) - 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...