/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:09:26,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:09:26,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:09:26,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:09:26,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:09:26,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:09:26,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:09:26,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:09:26,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:09:26,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:09:26,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:09:26,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:09:26,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:09:26,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:09:26,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:09:26,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:09:26,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:09:26,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:09:26,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:09:26,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:09:26,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:09:26,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:09:26,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:09:26,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:09:26,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:09:26,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:09:26,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:09:26,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:09:26,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:09:26,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:09:26,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:09:26,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:09:26,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:09:26,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:09:26,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:09:26,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:09:26,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:09:26,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:09:26,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:09:26,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:09:26,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:09:26,499 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:09:26,541 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:09:26,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:09:26,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:09:26,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:09:26,544 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:09:26,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:09:26,544 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:09:26,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:09:26,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:09:26,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:09:26,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:09:26,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:09:26,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:09:26,547 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:09:26,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:09:26,547 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:09:26,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:09:26,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:09:26,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:09:26,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:09:26,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:09:26,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:09:26,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:09:26,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:09:26,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:09:26,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:09:26,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:09:26,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:09:26,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:09:26,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 20:09:27,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:09:27,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:09:27,033 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:09:27,035 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:09:27,036 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:09:27,037 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product10.cil.c [2020-09-24 20:09:27,126 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7cfbae0da/3ba3ab1d3a3d4730b418f40533614660/FLAGdd31c6184 [2020-09-24 20:09:27,766 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:09:27,767 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product10.cil.c [2020-09-24 20:09:27,781 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7cfbae0da/3ba3ab1d3a3d4730b418f40533614660/FLAGdd31c6184 [2020-09-24 20:09:28,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7cfbae0da/3ba3ab1d3a3d4730b418f40533614660 [2020-09-24 20:09:28,070 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:09:28,075 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:09:28,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:09:28,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:09:28,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:09:28,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:09:28" (1/1) ... [2020-09-24 20:09:28,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559d5a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:28, skipping insertion in model container [2020-09-24 20:09:28,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:09:28" (1/1) ... [2020-09-24 20:09:28,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:09:28,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:09:28,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:09:28,575 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:09:28,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:09:28,794 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:09:28,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:28 WrapperNode [2020-09-24 20:09:28,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:09:28,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:09:28,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:09:28,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:09:28,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:28" (1/1) ... [2020-09-24 20:09:28,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:28" (1/1) ... [2020-09-24 20:09:28,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:28" (1/1) ... [2020-09-24 20:09:28,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:28" (1/1) ... [2020-09-24 20:09:28,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:28" (1/1) ... [2020-09-24 20:09:28,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:28" (1/1) ... [2020-09-24 20:09:28,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:28" (1/1) ... [2020-09-24 20:09:28,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:09:28,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:09:28,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:09:28,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:09:28,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:09:28,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:09:28,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:09:28,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:09:28,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:09:28,985 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:09:28,985 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:09:28,985 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:09:28,985 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:09:28,986 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:09:28,986 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:09:28,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:09:28,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:09:28,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:09:28,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:09:28,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:09:28,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:09:28,987 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:09:28,987 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:09:28,987 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:09:28,988 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:09:28,988 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:09:28,988 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:09:28,988 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:09:28,988 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 20:09:28,988 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:09:28,989 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:09:28,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:09:28,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:09:28,989 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:09:28,989 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 20:09:28,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 20:09:28,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 20:09:28,990 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:09:28,990 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:09:28,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:09:28,990 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:09:28,991 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:09:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:09:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:09:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:09:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:09:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:09:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:09:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:09:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:09:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:09:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:09:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:09:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:09:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:09:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:09:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:09:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:09:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:09:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:09:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:09:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:09:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:09:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:09:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:09:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:09:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:09:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:09:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:09:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:09:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:09:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:09:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:09:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 20:09:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:09:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:09:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:09:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:09:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:09:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:09:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:09:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 20:09:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:09:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 20:09:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:09:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 20:09:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:09:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:09:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:09:28,998 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:09:28,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:09:28,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:09:28,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:09:30,239 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:09:30,240 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:09:30,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:09:30 BoogieIcfgContainer [2020-09-24 20:09:30,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:09:30,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:09:30,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:09:30,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:09:30,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:09:28" (1/3) ... [2020-09-24 20:09:30,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad5aef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:09:30, skipping insertion in model container [2020-09-24 20:09:30,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:09:28" (2/3) ... [2020-09-24 20:09:30,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad5aef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:09:30, skipping insertion in model container [2020-09-24 20:09:30,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:09:30" (3/3) ... [2020-09-24 20:09:30,258 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product10.cil.c [2020-09-24 20:09:30,270 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:09:30,282 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:09:30,304 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:09:30,338 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:09:30,338 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:09:30,338 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:09:30,338 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:09:30,338 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:09:30,339 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:09:30,339 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:09:30,339 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:09:30,366 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states. [2020-09-24 20:09:30,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 20:09:30,383 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:09:30,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:09:30,386 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:09:30,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:09:30,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1827177956, now seen corresponding path program 1 times [2020-09-24 20:09:30,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:09:30,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1341415134] [2020-09-24 20:09:30,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:09:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:30,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:31,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:32,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:33,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:33,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:34,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:35,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:35,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 20:09:35,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:09:35,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-09-24 20:09:35,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:35,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:09:35,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 20:09:35,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 20:09:35,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 20:09:36,307 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:09:36,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:09:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:36,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:36,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:36,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:09:36,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:36,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-24 20:09:36,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:36,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:36,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:36,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 20:09:36,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:36,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:09:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:36,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:36,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:36,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:36,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:36,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:36,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:36,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:36,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:36,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:09:36,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:36,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:09:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:36,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:36,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:36,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:36,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:36,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:36,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:36,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:36,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:36,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:09:36,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:36,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:09:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:36,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:36,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:36,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:36,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:36,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:09:36,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:36,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:36,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:36,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:09:36,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:36,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:09:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:36,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:36,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:36,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:36,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:36,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:36,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:36,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:36,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:36,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:09:36,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:36,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:09:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:36,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:36,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:36,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:09:36,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:36,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:36,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:09:36,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:36,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:09:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:36,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:36,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:36,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:36,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:36,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:09:36,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:36,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:09:36,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:36,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:09:36,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:36,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 20:09:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:36,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:36,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:36,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:36,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:36,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:36,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:36,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:36,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:09:36,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:36,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:09:36,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1341415134] [2020-09-24 20:09:36,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:09:36,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:09:36,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432529286] [2020-09-24 20:09:36,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:09:36,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:09:36,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:09:36,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:09:36,858 INFO L87 Difference]: Start difference. First operand 270 states. Second operand 9 states. [2020-09-24 20:09:37,815 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:39,056 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:39,370 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:09:39,645 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:39,994 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:09:40,295 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:40,837 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:41,106 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:41,538 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:42,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:09:42,126 INFO L93 Difference]: Finished difference Result 467 states and 574 transitions. [2020-09-24 20:09:42,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 20:09:42,132 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 20:09:42,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:09:42,167 INFO L225 Difference]: With dead ends: 467 [2020-09-24 20:09:42,167 INFO L226 Difference]: Without dead ends: 326 [2020-09-24 20:09:42,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 20:09:42,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-09-24 20:09:42,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 263. [2020-09-24 20:09:42,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-09-24 20:09:42,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 286 transitions. [2020-09-24 20:09:42,307 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 286 transitions. Word has length 148 [2020-09-24 20:09:42,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:09:42,309 INFO L479 AbstractCegarLoop]: Abstraction has 263 states and 286 transitions. [2020-09-24 20:09:42,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:09:42,309 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 286 transitions. [2020-09-24 20:09:42,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 20:09:42,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:09:42,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:09:42,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:09:42,315 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:09:42,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:09:42,316 INFO L82 PathProgramCache]: Analyzing trace with hash 240081777, now seen corresponding path program 1 times [2020-09-24 20:09:42,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:09:42,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942344243] [2020-09-24 20:09:42,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:09:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:42,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:42,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:43,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:43,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:47,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:47,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-24 20:09:47,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:09:47,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-09-24 20:09:47,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:47,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:09:47,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 20:09:47,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 20:09:47,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:47,734 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:09:47,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:09:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:47,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:47,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:47,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:09:47,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:47,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 20:09:47,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:47,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:47,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:47,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:09:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:47,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:47,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:47,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:47,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:47,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:09:47,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:47,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:47,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:47,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:47,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:47,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:09:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:47,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:47,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:47,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:47,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:47,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:09:47,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:47,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:47,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:47,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:47,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:47,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:09:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:47,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:47,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:47,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:47,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:47,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:47,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:47,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:47,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:47,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:47,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:09:47,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:47,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:47,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:47,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:47,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:47,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:47,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:47,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:47,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:47,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:47,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:47,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:09:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:47,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:47,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:47,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:09:47,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:47,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:47,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:47,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:47,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:47,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 20:09:47,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:47,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:09:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:47,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:47,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:47,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:09:47,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:47,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:09:47,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:47,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:47,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:47,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:09:47,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:47,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:09:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:47,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:47,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:47,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:09:47,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:47,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:09:47,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:47,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:47,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:47,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:09:47,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:47,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 20:09:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:47,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:47,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:47,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:47,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:47,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:47,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:47,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:47,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:47,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:09:47,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:47,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 20:09:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:47,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:47,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:47,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:47,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:47,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:47,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:47,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:47,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:47,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:09:47,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:48,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:09:48,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942344243] [2020-09-24 20:09:48,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:09:48,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 20:09:48,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447947792] [2020-09-24 20:09:48,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 20:09:48,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:09:48,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 20:09:48,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:09:48,011 INFO L87 Difference]: Start difference. First operand 263 states and 286 transitions. Second operand 7 states. [2020-09-24 20:09:48,536 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:50,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:09:50,318 INFO L93 Difference]: Finished difference Result 673 states and 858 transitions. [2020-09-24 20:09:50,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 20:09:50,325 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 167 [2020-09-24 20:09:50,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:09:50,335 INFO L225 Difference]: With dead ends: 673 [2020-09-24 20:09:50,335 INFO L226 Difference]: Without dead ends: 670 [2020-09-24 20:09:50,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-09-24 20:09:50,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2020-09-24 20:09:50,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 353. [2020-09-24 20:09:50,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-09-24 20:09:50,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 396 transitions. [2020-09-24 20:09:50,442 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 396 transitions. Word has length 167 [2020-09-24 20:09:50,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:09:50,443 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 396 transitions. [2020-09-24 20:09:50,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 20:09:50,443 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 396 transitions. [2020-09-24 20:09:50,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-09-24 20:09:50,449 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:09:50,450 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:09:50,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:09:50,451 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:09:50,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:09:50,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1472503123, now seen corresponding path program 1 times [2020-09-24 20:09:50,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:09:50,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2142283994] [2020-09-24 20:09:50,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:09:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:50,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:50,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:50,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:50,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:51,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:51,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:55,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:55,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-09-24 20:09:55,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:09:55,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-24 20:09:55,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:55,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 20:09:55,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 20:09:55,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 20:09:55,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:55,887 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:09:55,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:09:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:55,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:56,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:56,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:09:56,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:56,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-24 20:09:56,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:56,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:56,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:56,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:56,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:56,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:09:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:56,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:56,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:56,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:56,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:56,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:56,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:56,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:56,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:09:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:56,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:56,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:56,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:56,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:56,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:56,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:56,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:56,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:56,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:56,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:56,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:09:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:56,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:56,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:56,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:56,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:56,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:56,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:56,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:56,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:56,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:56,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:56,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:09:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:56,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:56,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:56,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:56,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:56,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:09:56,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:56,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:56,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:56,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:56,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:56,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:09:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:56,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:56,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:56,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:09:56,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:56,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:56,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:56,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:56,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:56,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:56,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:56,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:09:56,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:56,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:56,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:56,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:09:56,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:56,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:56,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:56,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:56,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:56,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:56,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:56,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:09:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:56,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:56,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:56,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:09:56,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:56,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:09:56,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:56,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:56,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:56,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:56,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:56,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 20:09:56,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:56,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:56,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:56,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 20:09:56,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:56,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 20:09:56,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:56,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:09:56,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:56,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 20:09:56,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:56,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:09:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:56,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:56,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:56,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 20:09:56,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:56,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 20:09:56,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:56,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:09:56,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:56,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:09:56,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:56,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:09:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:56,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:56,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:56,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:56,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:56,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:09:56,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:09:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:09:56,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:56,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 20:09:56,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:56,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:56,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:56,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:56,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 20:09:56,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:09:56,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-09-24 20:09:56,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:56,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:09:56,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 20:09:56,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 20:09:56,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:56,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:09:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:56,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:56,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:56,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:09:56,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:56,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 20:09:56,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:56,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:09:56,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:56,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:09:56,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:56,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:09:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:56,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:56,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:56,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:56,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:56,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:09:56,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:56,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:09:56,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:56,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:09:56,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:56,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 20:09:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:56,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:56,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:56,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:56,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:56,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:09:56,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:56,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:56,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:56,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:09:56,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:56,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-09-24 20:09:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:56,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:56,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:56,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:56,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:56,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:56,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:56,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:56,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:09:56,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:56,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:56,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-09-24 20:09:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:56,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:56,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:56,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:56,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:56,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:56,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:56,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:56,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:09:56,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:56,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:57,033 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 28 proven. 14 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-24 20:09:57,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2142283994] [2020-09-24 20:09:57,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:09:57,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 20:09:57,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710219520] [2020-09-24 20:09:57,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 20:09:57,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:09:57,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 20:09:57,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-09-24 20:09:57,036 INFO L87 Difference]: Start difference. First operand 353 states and 396 transitions. Second operand 15 states. [2020-09-24 20:09:57,668 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:58,749 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:09:59,471 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:09:59,887 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:10:00,277 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:10:00,590 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:10:00,896 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:10:01,207 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 20:10:01,510 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:10:01,830 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:10:02,197 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 20:10:02,537 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:10:04,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:10:04,075 INFO L93 Difference]: Finished difference Result 780 states and 976 transitions. [2020-09-24 20:10:04,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-09-24 20:10:04,076 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 229 [2020-09-24 20:10:04,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:10:04,084 INFO L225 Difference]: With dead ends: 780 [2020-09-24 20:10:04,084 INFO L226 Difference]: Without dead ends: 542 [2020-09-24 20:10:04,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=478, Invalid=1778, Unknown=0, NotChecked=0, Total=2256 [2020-09-24 20:10:04,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-09-24 20:10:04,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 343. [2020-09-24 20:10:04,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-09-24 20:10:04,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 381 transitions. [2020-09-24 20:10:04,143 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 381 transitions. Word has length 229 [2020-09-24 20:10:04,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:10:04,144 INFO L479 AbstractCegarLoop]: Abstraction has 343 states and 381 transitions. [2020-09-24 20:10:04,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 20:10:04,144 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 381 transitions. [2020-09-24 20:10:04,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 20:10:04,148 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:10:04,148 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:10:04,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:10:04,149 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:10:04,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:10:04,149 INFO L82 PathProgramCache]: Analyzing trace with hash 555114867, now seen corresponding path program 1 times [2020-09-24 20:10:04,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:10:04,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248172123] [2020-09-24 20:10:04,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:10:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:04,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:04,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:04,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:05,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:05,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:06,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:06,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:08,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:09,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:09,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:09,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-24 20:10:09,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 20:10:09,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-09-24 20:10:09,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:09,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:10:09,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-24 20:10:09,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 20:10:09,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:10:09,690 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:10:09,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:10:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:09,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:09,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:09,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:10:09,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:09,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 20:10:09,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:09,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:10:09,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:09,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:10:09,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:10:09,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:10:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:09,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:09,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:09,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:10:09,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:09,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:10:09,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:09,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:10:09,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:09,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:10:09,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:10:09,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:10:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:09,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:09,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:09,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:10:09,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:09,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:10:09,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:09,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:10:09,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:09,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:10:09,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:10:09,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:10:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:09,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:09,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:09,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:10:09,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:09,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:10:09,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:09,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:10:09,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:09,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:10:09,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:10:09,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:10:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:09,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:09,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:09,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:10:09,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:09,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:10:09,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:09,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:10:09,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:09,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:10:09,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:10:09,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:10:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:09,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:09,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:09,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:10:09,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:09,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:10:09,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:09,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:10:09,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:09,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:10:09,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:10:09,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:10:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:09,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:09,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:09,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:10:09,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:09,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:10:09,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:09,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:10:09,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:09,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:10:09,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:10:09,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:10:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:09,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:09,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:09,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:10:09,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:09,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:10:09,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:09,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:10:09,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:09,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:10:09,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:10:09,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 20:10:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:09,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:10,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:10,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 20:10:10,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:10,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 20:10:10,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:10,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:10:10,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 20:10:10,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 20:10:10,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:10:10,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:10:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:10,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:10,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:10,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:10:10,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:10,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 20:10:10,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:10,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:10:10,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 20:10:10,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 20:10:10,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:10:10,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:10:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:10,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:10,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:10,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:10:10,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:10,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:10:10,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:10:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:10,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:10:10,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:10:10,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 20:10:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:10,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:10,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:10,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:10:10,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:10,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:10:10,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:10,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:10:10,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:10,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:10:10,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:10:10,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 20:10:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:10,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:10,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:10,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:10:10,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:10,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:10:10,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:10,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:10:10,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:10:10,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:10:10,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:10:10,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-24 20:10:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:10,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:10,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:10,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:10:10,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:10,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:10:10,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:10,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:10:10,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:10:10,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:10:10,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:10:10,331 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 20:10:10,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248172123] [2020-09-24 20:10:10,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:10:10,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 20:10:10,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192088327] [2020-09-24 20:10:10,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 20:10:10,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:10:10,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 20:10:10,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:10:10,334 INFO L87 Difference]: Start difference. First operand 343 states and 381 transitions. Second operand 13 states. [2020-09-24 20:10:10,928 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:10:12,199 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:12,498 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:10:13,078 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-24 20:10:13,696 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 197 [2020-09-24 20:10:14,291 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-09-24 20:10:14,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:10:14,792 INFO L93 Difference]: Finished difference Result 629 states and 774 transitions. [2020-09-24 20:10:14,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 20:10:14,792 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 204 [2020-09-24 20:10:14,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:10:14,793 INFO L225 Difference]: With dead ends: 629 [2020-09-24 20:10:14,794 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 20:10:14,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=277, Invalid=779, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 20:10:14,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 20:10:14,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 20:10:14,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 20:10:14,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 20:10:14,798 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 204 [2020-09-24 20:10:14,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:10:14,798 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 20:10:14,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 20:10:14,799 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 20:10:14,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 20:10:14,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:10:14,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 20:10:15,017 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:10:15,244 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:10:15,424 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:10:15,598 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:10:15,775 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:10:16,243 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 100 [2020-09-24 20:10:16,419 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 197