/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:10:44,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:10:44,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:10:44,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:10:44,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:10:44,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:10:44,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:10:44,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:10:44,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:10:44,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:10:44,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:10:44,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:10:44,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:10:44,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:10:44,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:10:44,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:10:44,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:10:44,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:10:44,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:10:44,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:10:44,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:10:44,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:10:44,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:10:44,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:10:44,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:10:44,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:10:44,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:10:44,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:10:44,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:10:44,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:10:44,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:10:44,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:10:44,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:10:44,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:10:44,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:10:44,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:10:44,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:10:44,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:10:44,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:10:44,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:10:44,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:10:44,748 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:10:44,772 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:10:44,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:10:44,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:10:44,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:10:44,774 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:10:44,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:10:44,775 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:10:44,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:10:44,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:10:44,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:10:44,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:10:44,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:10:44,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:10:44,776 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:10:44,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:10:44,777 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:10:44,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:10:44,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:10:44,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:10:44,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:10:44,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:10:44,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:10:44,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:10:44,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:10:44,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:10:44,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:10:44,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:10:44,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:10:44,779 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:10:44,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 20:10:45,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:10:45,254 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:10:45,261 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:10:45,263 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:10:45,265 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:10:45,266 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-09-24 20:10:45,347 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ebe5a0246/12d7447ec281430aa36a1b627d60889a/FLAGfd9c99cb3 [2020-09-24 20:10:45,936 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:10:45,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-09-24 20:10:45,961 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ebe5a0246/12d7447ec281430aa36a1b627d60889a/FLAGfd9c99cb3 [2020-09-24 20:10:46,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ebe5a0246/12d7447ec281430aa36a1b627d60889a [2020-09-24 20:10:46,219 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:10:46,225 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:10:46,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:10:46,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:10:46,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:10:46,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:10:46" (1/1) ... [2020-09-24 20:10:46,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71155234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:46, skipping insertion in model container [2020-09-24 20:10:46,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:10:46" (1/1) ... [2020-09-24 20:10:46,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:10:46,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:10:46,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:10:46,662 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:10:46,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:10:46,923 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:10:46,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:46 WrapperNode [2020-09-24 20:10:46,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:10:46,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:10:46,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:10:46,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:10:46,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:46" (1/1) ... [2020-09-24 20:10:46,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:46" (1/1) ... [2020-09-24 20:10:46,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:46" (1/1) ... [2020-09-24 20:10:46,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:46" (1/1) ... [2020-09-24 20:10:46,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:46" (1/1) ... [2020-09-24 20:10:47,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:46" (1/1) ... [2020-09-24 20:10:47,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:46" (1/1) ... [2020-09-24 20:10:47,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:10:47,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:10:47,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:10:47,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:10:47,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:10:47,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:10:47,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:10:47,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:10:47,105 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:10:47,105 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:10:47,106 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:10:47,107 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:10:47,107 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:10:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:10:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:10:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:10:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:10:47,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:10:47,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:10:47,109 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:10:47,110 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:10:47,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:10:47,110 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:10:47,110 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:10:47,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:10:47,111 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:10:47,111 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:10:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:10:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:10:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:10:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:10:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:10:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:10:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:10:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:10:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:10:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:10:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:10:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:10:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:10:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:10:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 20:10:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 20:10:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:10:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:10:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:10:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:10:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:10:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:10:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:10:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:10:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:10:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:10:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:10:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:10:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:10:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:10:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:10:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:10:47,118 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:10:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:10:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:10:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:10:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 20:10:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:10:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:10:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:10:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:10:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:10:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:10:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:10:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 20:10:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:10:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:10:47,121 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:10:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:10:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:10:47,123 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:10:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:10:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:10:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:10:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:10:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:10:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:10:47,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:10:47,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:10:47,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:10:47,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:10:47,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:10:47,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:10:47,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:10:47,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:10:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:10:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:10:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:10:48,235 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:10:48,235 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:10:48,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:10:48 BoogieIcfgContainer [2020-09-24 20:10:48,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:10:48,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:10:48,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:10:48,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:10:48,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:10:46" (1/3) ... [2020-09-24 20:10:48,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ea26dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:10:48, skipping insertion in model container [2020-09-24 20:10:48,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:46" (2/3) ... [2020-09-24 20:10:48,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ea26dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:10:48, skipping insertion in model container [2020-09-24 20:10:48,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:10:48" (3/3) ... [2020-09-24 20:10:48,254 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2020-09-24 20:10:48,265 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:10:48,276 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:10:48,298 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:10:48,327 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:10:48,327 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:10:48,328 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:10:48,328 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:10:48,328 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:10:48,328 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:10:48,328 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:10:48,329 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:10:48,358 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2020-09-24 20:10:48,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 20:10:48,377 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:10:48,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:10:48,379 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:10:48,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:10:48,388 INFO L82 PathProgramCache]: Analyzing trace with hash -636857616, now seen corresponding path program 1 times [2020-09-24 20:10:48,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:10:48,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175161433] [2020-09-24 20:10:48,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:10:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:48,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:49,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:49,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:50,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:51,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:53,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:53,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 20:10:53,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:10:53,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-24 20:10:53,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:53,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:10:53,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 20:10:53,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 20:10:53,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 20:10:54,300 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:10:54,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:10:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:54,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:54,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:54,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:10:54,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:54,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-24 20:10:54,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:54,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:10:54,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:54,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 20:10:54,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:10:54,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:10:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:54,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:54,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:54,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:10:54,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:54,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:10:54,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:54,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:10:54,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:54,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:10:54,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:10:54,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:10:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:54,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:54,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:54,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:10:54,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:54,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:10:54,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:54,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:10:54,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:54,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:10:54,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:10:54,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:10:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:54,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:54,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:54,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:10:54,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:54,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:10:54,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:54,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:10:54,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:54,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:10:54,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:10:54,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:10:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:54,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:54,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:54,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:10:54,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:54,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:10:54,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:54,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:10:54,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:54,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:10:54,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:10:54,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:10:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:54,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:54,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:54,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:10:54,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:54,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:10:54,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:54,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:10:54,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:54,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:10:54,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:10:54,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:10:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:54,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:54,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:54,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:10:54,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:54,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 20:10:54,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:10:54,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:10:54,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:10:54,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:10:54,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 20:10:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:54,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:54,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:54,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:10:54,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:10:54,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:10:54,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:54,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:10:54,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:10:54,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:10:54,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:10:54,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:10:54,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1175161433] [2020-09-24 20:10:54,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:10:54,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:10:54,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263283045] [2020-09-24 20:10:54,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:10:54,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:10:54,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:10:54,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:10:54,970 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 9 states. [2020-09-24 20:10:55,627 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:10:56,660 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:56,964 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:10:57,330 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:57,722 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:10:57,995 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:58,614 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:10:58,938 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:10:59,444 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:11:00,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:11:00,269 INFO L93 Difference]: Finished difference Result 567 states and 688 transitions. [2020-09-24 20:11:00,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 20:11:00,272 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 20:11:00,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:11:00,309 INFO L225 Difference]: With dead ends: 567 [2020-09-24 20:11:00,310 INFO L226 Difference]: Without dead ends: 393 [2020-09-24 20:11:00,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 20:11:00,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2020-09-24 20:11:00,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 329. [2020-09-24 20:11:00,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-09-24 20:11:00,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 362 transitions. [2020-09-24 20:11:00,525 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 362 transitions. Word has length 148 [2020-09-24 20:11:00,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:11:00,526 INFO L479 AbstractCegarLoop]: Abstraction has 329 states and 362 transitions. [2020-09-24 20:11:00,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:11:00,527 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 362 transitions. [2020-09-24 20:11:00,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 20:11:00,532 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:11:00,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:11:00,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:11:00,533 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:11:00,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:11:00,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1721434398, now seen corresponding path program 1 times [2020-09-24 20:11:00,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:11:00,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [929666244] [2020-09-24 20:11:00,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:11:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:00,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:00,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:01,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:03,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:05,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:05,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-24 20:11:05,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:11:05,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 20:11:05,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:05,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 20:11:05,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 20:11:05,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-24 20:11:05,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:05,949 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:11:05,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:11:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:06,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:06,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:06,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:11:06,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:06,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-24 20:11:06,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:06,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:06,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:06,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 20:11:06,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:06,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:11:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:06,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:06,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:06,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:06,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:06,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:11:06,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:06,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:06,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:06,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:06,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:06,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:11:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:06,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:06,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:06,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:06,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:06,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:11:06,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:06,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:06,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:06,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:06,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:06,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:11:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:06,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:06,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:06,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:06,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:06,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:11:06,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:06,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:06,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:06,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:06,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:06,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:11:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:06,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:06,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:06,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:06,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:06,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:06,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:06,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:06,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:06,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:06,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:06,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:11:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:06,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:06,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:06,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:06,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:06,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:06,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:06,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:06,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:06,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:11:06,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:06,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:11:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:06,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:06,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:06,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:11:06,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:06,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:06,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:06,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:06,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:06,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:11:06,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:06,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 20:11:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:06,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:06,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:06,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:06,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:06,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:11:06,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:06,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:06,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:06,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:06,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:06,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 20:11:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:06,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:06,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:06,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:06,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:06,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:11:06,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:06,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:11:06,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:06,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:06,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:06,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:11:06,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [929666244] [2020-09-24 20:11:06,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:11:06,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 20:11:06,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857802754] [2020-09-24 20:11:06,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:11:06,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:11:06,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:11:06,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:11:06,482 INFO L87 Difference]: Start difference. First operand 329 states and 362 transitions. Second operand 10 states. [2020-09-24 20:11:06,999 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:11:08,176 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:08,495 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:08,856 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:09,207 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:11:09,558 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:11:10,212 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:11:10,493 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:10,858 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:11,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:11:11,700 INFO L93 Difference]: Finished difference Result 790 states and 957 transitions. [2020-09-24 20:11:11,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 20:11:11,702 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-09-24 20:11:11,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:11:11,709 INFO L225 Difference]: With dead ends: 790 [2020-09-24 20:11:11,709 INFO L226 Difference]: Without dead ends: 576 [2020-09-24 20:11:11,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 20:11:11,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2020-09-24 20:11:11,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 466. [2020-09-24 20:11:11,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-09-24 20:11:11,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 527 transitions. [2020-09-24 20:11:11,790 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 527 transitions. Word has length 163 [2020-09-24 20:11:11,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:11:11,791 INFO L479 AbstractCegarLoop]: Abstraction has 466 states and 527 transitions. [2020-09-24 20:11:11,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:11:11,791 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 527 transitions. [2020-09-24 20:11:11,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-24 20:11:11,796 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:11:11,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:11:11,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:11:11,797 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:11:11,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:11:11,798 INFO L82 PathProgramCache]: Analyzing trace with hash 306083937, now seen corresponding path program 1 times [2020-09-24 20:11:11,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:11:11,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1593646126] [2020-09-24 20:11:11,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:11:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:11,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:15,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:15,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-09-24 20:11:15,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:11:15,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3833 [2020-09-24 20:11:15,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:15,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:11:15,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 20:11:15,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-24 20:11:15,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:16,008 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:11:16,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:11:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:16,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:16,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:16,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:11:16,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:16,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 20:11:16,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:16,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:16,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:16,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:16,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:16,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:11:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:16,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:16,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:16,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:16,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:16,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:16,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:16,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:16,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:16,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:16,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:16,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:11:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:16,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:16,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:16,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:16,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:16,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:11:16,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:16,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:16,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:16,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:16,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:16,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:11:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:16,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:16,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:16,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:16,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:16,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:16,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:16,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:16,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:16,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:16,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:11:16,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:11:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:16,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:16,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:16,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:16,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:16,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:11:16,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:16,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:16,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:16,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:16,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:11:16,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:11:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:16,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:16,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:16,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:16,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:16,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:11:16,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 20:11:16,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:16,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:11:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:16,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:16,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:16,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:11:16,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:16,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:11:16,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:16,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:16,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:16,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:11:16,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:16,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 20:11:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:16,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:16,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:16,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:16,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:11:16,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:11:16,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 20:11:16,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:16,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:11:16,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:11:16,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:11:16,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:16,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:11:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:16,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:16,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:16,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:11:16,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:16,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 20:11:16,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:16,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:11:16,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:16,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:11:16,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:16,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:11:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:16,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:16,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:16,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:11:16,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:16,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:16,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:16,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:16,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:16,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:16,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:16,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:11:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:16,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:16,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:16,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:16,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:16,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:16,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:16,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:16,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:11:16,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:16,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:16,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 20:11:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:16,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:16,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:16,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:16,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:16,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:11:16,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:16,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:16,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:16,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:16,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:16,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 20:11:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:16,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:16,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:16,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:16,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:16,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:16,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:16,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:16,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:16,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:16,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:16,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:11:16,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1593646126] [2020-09-24 20:11:16,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:11:16,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 20:11:16,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237581197] [2020-09-24 20:11:16,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 20:11:16,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:11:16,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 20:11:16,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-24 20:11:16,569 INFO L87 Difference]: Start difference. First operand 466 states and 527 transitions. Second operand 12 states. [2020-09-24 20:11:17,133 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:11:18,317 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:18,650 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:18,987 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:11:19,370 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:19,732 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:20,062 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:21,598 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:11:21,951 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:11:22,269 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:11:22,605 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:11:22,942 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:11:23,239 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:11:24,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:11:24,358 INFO L93 Difference]: Finished difference Result 1434 states and 1848 transitions. [2020-09-24 20:11:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-24 20:11:24,359 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 196 [2020-09-24 20:11:24,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:11:24,370 INFO L225 Difference]: With dead ends: 1434 [2020-09-24 20:11:24,371 INFO L226 Difference]: Without dead ends: 1083 [2020-09-24 20:11:24,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=319, Invalid=871, Unknown=0, NotChecked=0, Total=1190 [2020-09-24 20:11:24,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2020-09-24 20:11:24,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 785. [2020-09-24 20:11:24,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2020-09-24 20:11:24,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 915 transitions. [2020-09-24 20:11:24,495 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 915 transitions. Word has length 196 [2020-09-24 20:11:24,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:11:24,496 INFO L479 AbstractCegarLoop]: Abstraction has 785 states and 915 transitions. [2020-09-24 20:11:24,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 20:11:24,496 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 915 transitions. [2020-09-24 20:11:24,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-09-24 20:11:24,502 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:11:24,503 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:11:24,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:11:24,503 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:11:24,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:11:24,504 INFO L82 PathProgramCache]: Analyzing trace with hash 305124285, now seen corresponding path program 1 times [2020-09-24 20:11:24,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:11:24,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072881276] [2020-09-24 20:11:24,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:11:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:24,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:24,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:25,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:25,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:26,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:26,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:29,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:29,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-09-24 20:11:29,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:11:29,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-24 20:11:29,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:29,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:11:29,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 20:11:29,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-09-24 20:11:29,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:29,948 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:11:29,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:11:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:30,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:30,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:30,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:11:30,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:30,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-24 20:11:30,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:30,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:30,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:30,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 20:11:30,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:30,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:11:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:30,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:30,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:30,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:30,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:30,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:30,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:30,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:30,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:30,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:30,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:30,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:11:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:30,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:30,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:30,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:30,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:30,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:30,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:30,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:30,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:30,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:30,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:30,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:11:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:30,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:30,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:30,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:30,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:30,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:11:30,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:30,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:30,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:30,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:30,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:30,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:11:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:30,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:30,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:30,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:30,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:30,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:30,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:30,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:30,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:30,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:30,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:30,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:11:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:30,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:30,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:30,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:30,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:30,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:30,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:30,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:30,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:30,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:11:30,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:11:30,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:11:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:30,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:30,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:30,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:11:30,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:30,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:11:30,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:30,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:30,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:30,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:11:30,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:30,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:11:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:30,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:30,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:30,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:30,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 20:11:30,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:11:30,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-09-24 20:11:30,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:30,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:11:30,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 20:11:30,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:11:30,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:30,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:11:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:30,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:30,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:30,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:11:30,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:30,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 20:11:30,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:30,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:11:30,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:11:30,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:11:30,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:30,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:11:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:30,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:30,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:30,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:11:30,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:30,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 20:11:30,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:30,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:11:30,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:11:30,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:11:30,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:30,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:11:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:30,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:30,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:30,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:11:30,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:30,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:11:30,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:11:30,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:30,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:30,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:31,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:11:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:31,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:31,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:31,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:31,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:31,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:11:31,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:31,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:31,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:11:31,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:31,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:31,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-24 20:11:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:31,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:31,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:31,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:11:31,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:31,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 20:11:31,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:31,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:31,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 20:11:31,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:31,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:31,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:11:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:31,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:31,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:31,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:31,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:31,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:31,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:31,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:31,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:31,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:31,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:31,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 20:11:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:31,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:31,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:31,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:31,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:31,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:31,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:31,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:31,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:31,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:31,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:31,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-09-24 20:11:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:31,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:31,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:31,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:31,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:31,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:11:31,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:31,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:11:31,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:11:31,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:11:31,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:31,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-24 20:11:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:31,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:31,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:31,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:31,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:31,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:31,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:31,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:31,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:11:31,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:31,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:31,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-09-24 20:11:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:31,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:31,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:31,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:31,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:31,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:31,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:31,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:31,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:11:31,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:31,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:31,302 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-24 20:11:31,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072881276] [2020-09-24 20:11:31,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:11:31,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 20:11:31,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615210227] [2020-09-24 20:11:31,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 20:11:31,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:11:31,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 20:11:31,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-09-24 20:11:31,305 INFO L87 Difference]: Start difference. First operand 785 states and 915 transitions. Second operand 14 states. [2020-09-24 20:11:31,911 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:11:33,188 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:11:33,544 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:11:33,899 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:34,195 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:11:34,499 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:34,808 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:35,134 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:11:35,447 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:35,814 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190