/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 01:33:48,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 01:33:48,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 01:33:48,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 01:33:48,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 01:33:48,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 01:33:48,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 01:33:48,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 01:33:48,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 01:33:48,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 01:33:48,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 01:33:48,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 01:33:48,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 01:33:48,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 01:33:48,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 01:33:48,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 01:33:48,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 01:33:48,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 01:33:48,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 01:33:48,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 01:33:48,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 01:33:48,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 01:33:48,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 01:33:48,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 01:33:48,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 01:33:48,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 01:33:48,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 01:33:48,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 01:33:48,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 01:33:48,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 01:33:48,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 01:33:48,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 01:33:48,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 01:33:48,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 01:33:48,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 01:33:48,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 01:33:48,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 01:33:48,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 01:33:48,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 01:33:48,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 01:33:48,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 01:33:48,819 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 01:33:48,857 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 01:33:48,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 01:33:48,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 01:33:48,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 01:33:48,859 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 01:33:48,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 01:33:48,860 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 01:33:48,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 01:33:48,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 01:33:48,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 01:33:48,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 01:33:48,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 01:33:48,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 01:33:48,862 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 01:33:48,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 01:33:48,862 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 01:33:48,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 01:33:48,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 01:33:48,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 01:33:48,863 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 01:33:48,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 01:33:48,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 01:33:48,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 01:33:48,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 01:33:48,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 01:33:48,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 01:33:48,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 01:33:48,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 01:33:48,865 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 01:33:48,865 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 01:33:49,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 01:33:49,139 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 01:33:49,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 01:33:49,143 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 01:33:49,144 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 01:33:49,145 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product51.cil.c [2020-10-15 01:33:49,209 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c1f3b78be/7daac00a184d449580a0c45662f19b54/FLAG6d3a3b134 [2020-10-15 01:33:49,685 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 01:33:49,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product51.cil.c [2020-10-15 01:33:49,698 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c1f3b78be/7daac00a184d449580a0c45662f19b54/FLAG6d3a3b134 [2020-10-15 01:33:50,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c1f3b78be/7daac00a184d449580a0c45662f19b54 [2020-10-15 01:33:50,049 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 01:33:50,050 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 01:33:50,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 01:33:50,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 01:33:50,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 01:33:50,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:33:50" (1/1) ... [2020-10-15 01:33:50,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0619bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:50, skipping insertion in model container [2020-10-15 01:33:50,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:33:50" (1/1) ... [2020-10-15 01:33:50,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 01:33:50,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 01:33:50,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 01:33:50,573 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 01:33:50,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 01:33:50,687 INFO L208 MainTranslator]: Completed translation [2020-10-15 01:33:50,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:50 WrapperNode [2020-10-15 01:33:50,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 01:33:50,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 01:33:50,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 01:33:50,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 01:33:50,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:50" (1/1) ... [2020-10-15 01:33:50,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:50" (1/1) ... [2020-10-15 01:33:50,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:50" (1/1) ... [2020-10-15 01:33:50,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:50" (1/1) ... [2020-10-15 01:33:50,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:50" (1/1) ... [2020-10-15 01:33:50,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:50" (1/1) ... [2020-10-15 01:33:50,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:50" (1/1) ... [2020-10-15 01:33:50,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 01:33:50,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 01:33:50,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 01:33:50,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 01:33:50,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 01:33:50,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 01:33:50,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 01:33:50,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-15 01:33:50,856 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-15 01:33:50,856 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-15 01:33:50,856 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-15 01:33:50,856 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-15 01:33:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-15 01:33:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-15 01:33:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-15 01:33:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-15 01:33:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-15 01:33:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-15 01:33:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-15 01:33:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-15 01:33:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-15 01:33:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-15 01:33:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-15 01:33:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-15 01:33:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-15 01:33:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-15 01:33:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-15 01:33:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-15 01:33:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-15 01:33:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-15 01:33:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-15 01:33:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-15 01:33:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-15 01:33:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-15 01:33:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-15 01:33:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-15 01:33:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-15 01:33:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 01:33:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-15 01:33:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-15 01:33:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-15 01:33:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-15 01:33:50,864 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-15 01:33:50,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-15 01:33:50,864 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-15 01:33:50,864 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-15 01:33:50,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 01:33:50,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 01:33:50,865 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-15 01:33:50,865 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-15 01:33:50,865 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-15 01:33:50,865 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-15 01:33:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-15 01:33:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-15 01:33:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-15 01:33:50,866 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-15 01:33:50,867 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-15 01:33:50,867 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-15 01:33:50,867 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-15 01:33:50,867 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-15 01:33:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-15 01:33:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-15 01:33:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-15 01:33:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-15 01:33:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-15 01:33:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-15 01:33:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-15 01:33:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-15 01:33:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-15 01:33:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-15 01:33:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-15 01:33:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 01:33:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-15 01:33:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-15 01:33:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-15 01:33:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-15 01:33:50,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 01:33:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 01:33:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 01:33:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 01:33:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-15 01:33:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 01:33:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-15 01:33:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-15 01:33:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 01:33:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-15 01:33:50,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-15 01:33:50,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-15 01:33:50,875 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-15 01:33:50,876 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-15 01:33:50,876 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-15 01:33:50,876 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-15 01:33:50,876 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-15 01:33:50,876 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-15 01:33:50,876 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-15 01:33:50,876 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-15 01:33:50,877 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 01:33:50,877 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-15 01:33:50,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 01:33:50,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 01:33:50,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 01:33:51,814 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 01:33:51,815 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-15 01:33:51,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:33:51 BoogieIcfgContainer [2020-10-15 01:33:51,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 01:33:51,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 01:33:51,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 01:33:51,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 01:33:51,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:33:50" (1/3) ... [2020-10-15 01:33:51,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490fbd76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:33:51, skipping insertion in model container [2020-10-15 01:33:51,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:33:50" (2/3) ... [2020-10-15 01:33:51,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490fbd76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:33:51, skipping insertion in model container [2020-10-15 01:33:51,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:33:51" (3/3) ... [2020-10-15 01:33:51,827 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product51.cil.c [2020-10-15 01:33:51,837 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 01:33:51,845 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 01:33:51,858 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 01:33:51,882 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 01:33:51,882 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 01:33:51,883 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 01:33:51,883 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 01:33:51,883 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 01:33:51,883 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 01:33:51,883 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 01:33:51,884 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 01:33:51,905 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2020-10-15 01:33:51,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-15 01:33:51,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:33:51,915 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] [2020-10-15 01:33:51,916 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:33:51,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:33:51,922 INFO L82 PathProgramCache]: Analyzing trace with hash -199381509, now seen corresponding path program 1 times [2020-10-15 01:33:51,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:33:51,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [215542405] [2020-10-15 01:33:51,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:33:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:52,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:52,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:53,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:53,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:54,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:57,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:57,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 01:33:57,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 01:33:57,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 01:33:57,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:57,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:57,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 01:33:57,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:33:57,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-15 01:33:57,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 01:33:57,645 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:33:57,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:33:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:57,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:57,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:57,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:57,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:57,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-15 01:33:57,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:57,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:57,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:57,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:57,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:33:57,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:57,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:33:57,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:57,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:57,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:57,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:33:57,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:57,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:57,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:57,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:33:57,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:57,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:33:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:57,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:57,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:57,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:33:57,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:57,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:33:57,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:57,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:33:57,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:57,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:33:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:57,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:57,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:57,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:57,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:57,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 01:33:57,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:57,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:57,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:57,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:57,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:33:57,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:57,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:33:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:57,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:57,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:57,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:33:57,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:57,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:33:57,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:57,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:57,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:33:57,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:57,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:33:57,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:57,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 01:33:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:57,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:57,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:57,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:57,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:57,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 01:33:57,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:57,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:57,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:33:57,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:33:57,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:33:57,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:57,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 01:33:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:33:57,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:33:57,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:33:57,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:33:57,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:33:57,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:33:57,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:33:57,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:33:57,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:33:57,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:33:57,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:33:57,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:33:57,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:33:57,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [215542405] [2020-10-15 01:33:57,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:33:57,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 01:33:57,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759119780] [2020-10-15 01:33:57,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 01:33:57,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:33:57,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 01:33:57,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-15 01:33:57,888 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 7 states. [2020-10-15 01:33:58,355 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:33:59,191 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:33:59,522 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:33:59,805 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:00,344 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:34:00,776 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 01:34:01,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:34:01,913 INFO L93 Difference]: Finished difference Result 447 states and 594 transitions. [2020-10-15 01:34:01,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 01:34:01,916 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2020-10-15 01:34:01,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:34:01,931 INFO L225 Difference]: With dead ends: 447 [2020-10-15 01:34:01,931 INFO L226 Difference]: Without dead ends: 275 [2020-10-15 01:34:01,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-15 01:34:01,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-10-15 01:34:02,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 226. [2020-10-15 01:34:02,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-15 01:34:02,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 270 transitions. [2020-10-15 01:34:02,053 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 270 transitions. Word has length 46 [2020-10-15 01:34:02,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:34:02,054 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 270 transitions. [2020-10-15 01:34:02,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 01:34:02,054 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 270 transitions. [2020-10-15 01:34:02,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-15 01:34:02,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:34:02,058 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] [2020-10-15 01:34:02,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 01:34:02,059 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:34:02,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:34:02,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1757237482, now seen corresponding path program 1 times [2020-10-15 01:34:02,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:34:02,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1684212922] [2020-10-15 01:34:02,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:34:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:02,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:02,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:02,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:03,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:03,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 01:34:03,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 01:34:03,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1839 [2020-10-15 01:34:03,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:03,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:03,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 01:34:03,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:03,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-15 01:34:03,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:04,178 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:34:04,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:34:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:04,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:04,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:04,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:04,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:04,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-15 01:34:04,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:04,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:04,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:04,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:04,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:34:04,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:04,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:34:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:04,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:04,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:04,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:04,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:04,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:04,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:04,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:04,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:04,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:04,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:04,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:04,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:34:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:04,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:04,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:04,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:04,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:04,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:04,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:04,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:04,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:04,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:04,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:04,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:04,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:34:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:04,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:04,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:04,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:04,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:04,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:34:04,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:04,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:04,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:04,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:04,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:04,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:04,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:34:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:04,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:04,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:04,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:04,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:04,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:04,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:04,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:04,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:04,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:04,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:04,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:04,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 01:34:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:04,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:04,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:04,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:04,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:04,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:34:04,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:04,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:04,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:04,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:04,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:04,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:04,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-15 01:34:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:04,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:04,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:04,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:04,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:04,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:04,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:04,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:04,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:04,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 01:34:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:04,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:04,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:04,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:04,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:04,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:34:04,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:04,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:04,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:04,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:04,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:04,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:04,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:34:04,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1684212922] [2020-10-15 01:34:04,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:34:04,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 01:34:04,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848866983] [2020-10-15 01:34:04,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 01:34:04,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:34:04,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 01:34:04,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 01:34:04,352 INFO L87 Difference]: Start difference. First operand 226 states and 270 transitions. Second operand 8 states. [2020-10-15 01:34:04,721 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:34:05,539 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-15 01:34:05,768 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:06,012 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:34:06,560 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 01:34:06,840 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 01:34:07,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:34:07,853 INFO L93 Difference]: Finished difference Result 630 states and 842 transitions. [2020-10-15 01:34:07,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-15 01:34:07,854 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-10-15 01:34:07,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:34:07,866 INFO L225 Difference]: With dead ends: 630 [2020-10-15 01:34:07,867 INFO L226 Difference]: Without dead ends: 428 [2020-10-15 01:34:07,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-15 01:34:07,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-10-15 01:34:07,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 363. [2020-10-15 01:34:07,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-10-15 01:34:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 457 transitions. [2020-10-15 01:34:07,991 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 457 transitions. Word has length 55 [2020-10-15 01:34:07,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:34:07,991 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 457 transitions. [2020-10-15 01:34:07,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 01:34:07,991 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 457 transitions. [2020-10-15 01:34:07,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-15 01:34:07,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:34:07,997 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-15 01:34:07,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 01:34:07,997 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:34:07,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:34:07,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1017510180, now seen corresponding path program 1 times [2020-10-15 01:34:07,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:34:07,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507084285] [2020-10-15 01:34:07,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:34:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:08,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:08,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:13,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:13,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-15 01:34:13,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 01:34:13,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-15 01:34:13,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:13,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:13,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 01:34:13,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:13,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 01:34:13,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 01:34:13,467 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:34:13,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:34:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:13,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:13,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:13,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:13,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:13,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-15 01:34:13,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:13,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:13,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:13,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:13,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:34:13,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:13,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:34:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:13,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:13,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:13,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:13,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:13,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:13,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:13,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:13,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:13,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:13,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:13,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:13,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:34:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:13,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:13,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:13,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:13,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:13,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:13,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:13,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:13,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:13,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:13,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:34:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:13,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:13,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:13,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:13,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:13,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:13,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:13,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:13,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:13,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:13,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:13,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:13,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:34:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:13,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:13,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:13,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:13,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:13,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:13,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:13,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:13,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:13,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:13,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:13,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:13,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 01:34:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:13,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:13,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:13,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:13,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:13,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:34:13,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:13,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:13,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:13,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:13,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:13,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:13,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-15 01:34:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:13,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:13,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:13,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-15 01:34:13,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:13,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 01:34:13,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:13,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:13,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:13,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 01:34:13,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 01:34:13,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:13,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:13,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:13,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:13,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 01:34:13,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:13,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:34:13,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:13,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:13,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:13,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:13,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 01:34:13,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:13,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:13,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:13,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:13,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:13,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:13,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:13,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:13,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:13,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:13,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:13,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:13,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:13,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-15 01:34:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:13,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:13,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:13,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:13,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 01:34:13,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 01:34:13,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 01:34:13,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:13,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:13,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 01:34:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-15 01:34:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 01:34:13,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:13,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:13,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:13,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:13,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 01:34:13,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:13,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 01:34:13,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:13,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:13,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 01:34:13,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-15 01:34:13,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 01:34:13,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:13,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:13,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:13,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:13,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:13,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 01:34:13,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:13,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-15 01:34:13,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:13,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:13,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:13,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:13,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 01:34:13,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:13,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:13,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:13,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:13,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:34:13,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:13,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:13,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:13,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:13,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:13,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:13,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:13,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:13,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 01:34:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:13,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:13,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:13,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:13,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:13,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:13,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:13,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:13,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:13,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:13,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:13,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:13,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-15 01:34:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:13,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:13,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:13,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:13,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:13,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:13,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:13,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:13,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:13,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:13,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:13,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:13,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-15 01:34:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:13,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:13,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:13,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:13,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:13,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:34:13,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:13,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:13,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:13,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:13,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:13,936 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 01:34:13,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507084285] [2020-10-15 01:34:13,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:34:13,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 01:34:13,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125495696] [2020-10-15 01:34:13,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 01:34:13,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:34:13,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 01:34:13,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-15 01:34:13,939 INFO L87 Difference]: Start difference. First operand 363 states and 457 transitions. Second operand 12 states. [2020-10-15 01:34:14,329 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:34:15,040 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:34:15,514 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-15 01:34:15,768 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 01:34:16,057 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-15 01:34:16,331 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-15 01:34:16,641 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-15 01:34:16,922 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-15 01:34:17,261 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-15 01:34:17,598 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-15 01:34:20,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:34:20,374 INFO L93 Difference]: Finished difference Result 1365 states and 1968 transitions. [2020-10-15 01:34:20,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-15 01:34:20,374 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 102 [2020-10-15 01:34:20,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:34:20,385 INFO L225 Difference]: With dead ends: 1365 [2020-10-15 01:34:20,385 INFO L226 Difference]: Without dead ends: 1026 [2020-10-15 01:34:20,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=212, Invalid=718, Unknown=0, NotChecked=0, Total=930 [2020-10-15 01:34:20,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2020-10-15 01:34:20,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 715. [2020-10-15 01:34:20,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 715 states. [2020-10-15 01:34:20,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 900 transitions. [2020-10-15 01:34:20,571 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 900 transitions. Word has length 102 [2020-10-15 01:34:20,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:34:20,573 INFO L479 AbstractCegarLoop]: Abstraction has 715 states and 900 transitions. [2020-10-15 01:34:20,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 01:34:20,574 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 900 transitions. [2020-10-15 01:34:20,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-15 01:34:20,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:34:20,581 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] [2020-10-15 01:34:20,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 01:34:20,582 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:34:20,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:34:20,583 INFO L82 PathProgramCache]: Analyzing trace with hash 830189050, now seen corresponding path program 1 times [2020-10-15 01:34:20,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:34:20,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314275787] [2020-10-15 01:34:20,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:34:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:20,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:20,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:20,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 01:34:20,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:20,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-10-15 01:34:20,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:20,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:20,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:20,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-15 01:34:20,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:20,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:21,055 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:34:21,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:34:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:21,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:21,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:21,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:21,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:21,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 01:34:21,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:21,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:21,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:21,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:21,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:21,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:21,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:34:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:21,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:21,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:21,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:21,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:21,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:21,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:21,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:21,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:21,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:21,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:21,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:21,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:34:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:21,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:21,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:21,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:21,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:21,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:21,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:21,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:21,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:21,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:21,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:21,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:21,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:34:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:21,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:21,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:21,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:21,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:21,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:21,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:21,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:21,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:21,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:34:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:21,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:21,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:21,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:21,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:21,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:21,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:21,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:21,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:21,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:21,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:21,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:21,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 01:34:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:21,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:21,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:21,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:21,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:21,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:21,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:21,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:21,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:21,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:21,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:21,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:21,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 01:34:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:21,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:21,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:21,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 01:34:21,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:21,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 01:34:21,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:21,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:21,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:21,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 01:34:21,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:21,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:21,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:21,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:21,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:21,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 01:34:21,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:21,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 01:34:21,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:21,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:21,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:21,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 01:34:21,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:21,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:21,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:21,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:21,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:21,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 01:34:21,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:21,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 01:34:21,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:21,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:21,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:34:21,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 01:34:21,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:21,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:21,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:21,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:21,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:21,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:34:21,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:21,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:34:21,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:21,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:21,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 01:34:21,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:21,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:21,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:21,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 01:34:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:21,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:21,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:21,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:21,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:21,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:21,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:21,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:21,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:21,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:21,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:21,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:21,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-15 01:34:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:21,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:21,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:21,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:21,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:21,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:21,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:21,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:21,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:21,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:21,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:21,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:21,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 01:34:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:21,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:21,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:21,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:21,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:21,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:21,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:21,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:21,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:21,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:21,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:21,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:21,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:34:21,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314275787] [2020-10-15 01:34:21,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:34:21,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 01:34:21,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361130422] [2020-10-15 01:34:21,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 01:34:21,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:34:21,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 01:34:21,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-15 01:34:21,244 INFO L87 Difference]: Start difference. First operand 715 states and 900 transitions. Second operand 8 states. [2020-10-15 01:34:22,025 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 01:34:22,309 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 01:34:22,539 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 01:34:23,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:34:23,688 INFO L93 Difference]: Finished difference Result 1663 states and 2333 transitions. [2020-10-15 01:34:23,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 01:34:23,688 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-15 01:34:23,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:34:23,697 INFO L225 Difference]: With dead ends: 1663 [2020-10-15 01:34:23,697 INFO L226 Difference]: Without dead ends: 972 [2020-10-15 01:34:23,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-15 01:34:23,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2020-10-15 01:34:23,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 731. [2020-10-15 01:34:23,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2020-10-15 01:34:23,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 916 transitions. [2020-10-15 01:34:23,833 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 916 transitions. Word has length 83 [2020-10-15 01:34:23,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:34:23,833 INFO L479 AbstractCegarLoop]: Abstraction has 731 states and 916 transitions. [2020-10-15 01:34:23,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 01:34:23,833 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 916 transitions. [2020-10-15 01:34:23,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-15 01:34:23,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:34:23,838 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] [2020-10-15 01:34:23,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 01:34:23,838 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:34:23,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:34:23,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1855681049, now seen corresponding path program 1 times [2020-10-15 01:34:23,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:34:23,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781260017] [2020-10-15 01:34:23,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:34:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:23,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:24,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:24,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 01:34:24,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:24,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 481 [2020-10-15 01:34:24,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:24,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:24,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 01:34:24,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:24,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-15 01:34:24,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:24,564 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:34:24,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:34:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:24,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:24,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:24,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:24,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:24,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 01:34:24,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:24,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:24,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:24,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:24,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:34:24,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:24,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:34:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:24,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:24,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:24,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:24,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:24,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:24,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:24,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:24,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:24,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:24,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:24,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:24,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:34:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:24,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:24,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:24,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:24,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:24,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:24,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:24,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:24,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:24,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:24,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:24,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:24,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:34:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:24,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:24,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:24,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:24,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:24,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:24,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:24,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:24,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:24,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:24,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:24,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:24,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:34:24,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:24,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:24,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:24,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:34:24,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:24,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:24,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:24,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:24,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:24,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:24,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:34:24,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:24,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-15 01:34:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:24,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:24,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:24,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:24,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:24,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:24,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:24,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:24,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:24,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:24,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:24,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:24,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 01:34:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:24,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:24,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:24,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 01:34:24,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:24,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 01:34:24,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:24,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 01:34:24,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 01:34:24,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:24,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:24,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:24,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:24,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 01:34:24,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:24,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 01:34:24,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:24,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:24,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:24,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:24,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 01:34:24,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:24,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 01:34:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:24,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:24,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:24,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 01:34:24,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:24,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 01:34:24,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:24,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:24,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:24,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:24,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 01:34:24,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:24,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 01:34:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:24,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:24,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:24,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 01:34:24,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:24,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:24,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:24,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:24,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:24,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:24,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 01:34:24,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:34:24,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 01:34:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:24,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:24,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:24,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:24,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:24,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:34:24,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:24,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:24,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:34:24,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:34:24,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:34:24,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:24,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-15 01:34:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:24,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:24,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:24,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:24,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:24,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 01:34:24,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:24,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:24,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:24,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:24,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:24,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:24,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 01:34:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:34:24,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:34:24,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:34:24,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:34:24,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:34:24,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:34:24,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:34:24,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:34:24,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:34:24,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:34:24,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:34:24,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:34:24,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:34:24,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781260017] [2020-10-15 01:34:24,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:34:24,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 01:34:24,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067033506] [2020-10-15 01:34:24,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 01:34:24,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:34:24,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 01:34:24,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-15 01:34:24,791 INFO L87 Difference]: Start difference. First operand 731 states and 916 transitions. Second operand 7 states. [2020-10-15 01:34:25,100 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:34:25,563 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:34:27,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:34:27,976 INFO L93 Difference]: Finished difference Result 2466 states and 3478 transitions. [2020-10-15 01:34:27,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 01:34:27,977 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-10-15 01:34:27,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:34:27,990 INFO L225 Difference]: With dead ends: 2466 [2020-10-15 01:34:27,990 INFO L226 Difference]: Without dead ends: 1741 [2020-10-15 01:34:27,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-15 01:34:27,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2020-10-15 01:34:28,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1441. [2020-10-15 01:34:28,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1441 states. [2020-10-15 01:34:28,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 1842 transitions. [2020-10-15 01:34:28,219 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 1842 transitions. Word has length 83 [2020-10-15 01:34:28,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:34:28,219 INFO L479 AbstractCegarLoop]: Abstraction has 1441 states and 1842 transitions. [2020-10-15 01:34:28,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 01:34:28,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 1842 transitions. [2020-10-15 01:34:28,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-15 01:34:28,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:34:28,222 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] [2020-10-15 01:34:28,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 01:34:28,223 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:34:28,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:34:28,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1308897473, now seen corresponding path program 1 times [2020-10-15 01:34:28,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:34:28,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [196086476] [2020-10-15 01:34:28,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:34:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 01:34:28,259 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 01:34:28,259 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 01:34:28,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 01:34:28,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:34:28 BoogieIcfgContainer [2020-10-15 01:34:28,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 01:34:28,288 INFO L168 Benchmark]: Toolchain (without parser) took 38237.46 ms. Allocated memory was 148.4 MB in the beginning and 732.4 MB in the end (delta: 584.1 MB). Free memory was 103.6 MB in the beginning and 104.4 MB in the end (delta: -756.3 kB). Peak memory consumption was 583.3 MB. Max. memory is 7.1 GB. [2020-10-15 01:34:28,288 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.5 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-15 01:34:28,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.06 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 103.2 MB in the beginning and 172.7 MB in the end (delta: -69.5 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-10-15 01:34:28,290 INFO L168 Benchmark]: Boogie Preprocessor took 94.85 ms. Allocated memory is still 205.5 MB. Free memory was 172.7 MB in the beginning and 168.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2020-10-15 01:34:28,291 INFO L168 Benchmark]: RCFGBuilder took 1036.24 ms. Allocated memory was 205.5 MB in the beginning and 233.3 MB in the end (delta: 27.8 MB). Free memory was 168.9 MB in the beginning and 187.8 MB in the end (delta: -18.9 MB). Peak memory consumption was 78.8 MB. Max. memory is 7.1 GB. [2020-10-15 01:34:28,292 INFO L168 Benchmark]: TraceAbstraction took 36465.02 ms. Allocated memory was 233.3 MB in the beginning and 732.4 MB in the end (delta: 499.1 MB). Free memory was 187.8 MB in the beginning and 104.4 MB in the end (delta: 83.4 MB). Peak memory consumption was 582.5 MB. Max. memory is 7.1 GB. [2020-10-15 01:34:28,296 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.5 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 637.06 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 103.2 MB in the beginning and 172.7 MB in the end (delta: -69.5 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.85 ms. Allocated memory is still 205.5 MB. Free memory was 172.7 MB in the beginning and 168.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1036.24 ms. Allocated memory was 205.5 MB in the beginning and 233.3 MB in the end (delta: 27.8 MB). Free memory was 168.9 MB in the beginning and 187.8 MB in the end (delta: -18.9 MB). Peak memory consumption was 78.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 36465.02 ms. Allocated memory was 233.3 MB in the beginning and 732.4 MB in the end (delta: 499.1 MB). Free memory was 187.8 MB in the beginning and 104.4 MB in the end (delta: 83.4 MB). Peak memory consumption was 582.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 704]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L121] int pumpRunning = 0; [L122] int systemActive = 1; [L503] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L773] int cleanupTimeShifts = 4; [L870] int waterLevel = 1; [L871] int methaneLevelCritical = 0; [L846] int retValue_acc ; [L847] int tmp ; [L851] FCALL select_helpers() [L852] FCALL select_features() [L853] CALL, EXPR valid_product() [L738] int retValue_acc ; [L741] retValue_acc = 1 [L742] return (retValue_acc); [L853] RET, EXPR valid_product() [L853] tmp = valid_product() [L855] COND TRUE \read(tmp) [L857] FCALL setup() [L858] CALL runTest() [L840] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L888] COND TRUE waterLevel < 2 [L889] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp___0) [L77] CALL changeMethaneLevel() [L900] COND FALSE !(\read(methaneLevelCritical)) [L903] methaneLevelCritical = 1 [L77] RET changeMethaneLevel() [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L129] COND FALSE !(\read(pumpRunning)) [L136] COND TRUE \read(systemActive) [L138] CALL processEnvironment() [L184] int tmp ; [L187] COND FALSE !(\read(pumpRunning)) [L202] CALL processEnvironment__wrappee__highWaterSensor() [L158] int tmp ; [L161] COND TRUE ! pumpRunning [L163] CALL, EXPR isHighWaterLevel() [L281] int retValue_acc ; [L282] int tmp ; [L283] int tmp___0 ; [L287] CALL, EXPR isHighWaterSensorDry() [L950] int retValue_acc ; [L953] COND FALSE !(waterLevel < 2) [L957] retValue_acc = 0 [L958] return (retValue_acc); [L287] RET, EXPR isHighWaterSensorDry() [L287] tmp = isHighWaterSensorDry() [L289] COND FALSE !(\read(tmp)) [L292] tmp___0 = 1 [L294] retValue_acc = tmp___0 [L295] return (retValue_acc); [L163] RET, EXPR isHighWaterLevel() [L163] tmp = isHighWaterLevel() [L165] COND TRUE \read(tmp) [L167] CALL activatePump() [L212] pumpRunning = 1 [L167] RET activatePump() [L202] RET processEnvironment__wrappee__highWaterSensor() [L138] RET processEnvironment() [L144] CALL __utac_acc__Specification1_spec__1() [L748] int tmp ; [L749] int tmp___0 ; [L753] CALL, EXPR isMethaneLevelCritical() [L909] int retValue_acc ; [L912] retValue_acc = methaneLevelCritical [L913] return (retValue_acc); [L753] RET, EXPR isMethaneLevelCritical() [L753] tmp = isMethaneLevelCritical() [L755] COND TRUE \read(tmp) [L757] CALL, EXPR isPumpRunning() [L236] int retValue_acc ; [L239] retValue_acc = pumpRunning [L240] return (retValue_acc); [L757] RET, EXPR isPumpRunning() [L757] tmp___0 = isPumpRunning() [L759] COND TRUE \read(tmp___0) [L761] CALL __automaton_fail() [L704] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 241 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 36.3s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 19.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 778 SDtfs, 2180 SDslu, 1007 SDs, 0 SdLazy, 5048 SolverSat, 1491 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 137 SyntacticMatches, 4 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1441occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 966 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 15.3s InterpolantComputationTime, 456 NumberOfCodeBlocks, 456 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 364 ConstructedInterpolants, 0 QuantifiedInterpolants, 120288 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...