/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:44:47,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:44:47,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:44:47,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:44:47,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:44:47,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:44:47,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:44:47,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:44:47,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:44:47,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:44:47,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:44:47,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:44:47,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:44:47,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:44:47,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:44:47,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:44:47,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:44:47,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:44:47,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:44:47,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:44:47,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:44:47,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:44:47,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:44:47,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:44:47,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:44:47,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:44:47,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:44:47,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:44:47,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:44:47,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:44:47,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:44:47,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:44:47,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:44:47,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:44:47,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:44:47,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:44:47,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:44:47,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:44:47,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:44:47,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:44:47,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:44:47,135 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 16:44:47,160 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:44:47,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:44:47,162 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:44:47,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:44:47,162 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:44:47,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:44:47,163 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:44:47,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:44:47,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:44:47,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:44:47,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:44:47,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:44:47,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:44:47,164 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:44:47,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:44:47,165 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:44:47,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:44:47,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:44:47,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:44:47,165 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:44:47,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:44:47,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:44:47,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:44:47,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:44:47,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:44:47,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:44:47,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:44:47,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:44:47,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:44:47,168 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;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;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;log-additional-information=true; [2020-09-24 16:44:47,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:44:47,638 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:44:47,643 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:44:47,645 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:44:47,646 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:44:47,647 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c [2020-09-24 16:44:47,743 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a6ac82789/3c8ecb7126e64df7ab49376a7ad727d6/FLAGf0be34454 [2020-09-24 16:44:48,353 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:44:48,354 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c [2020-09-24 16:44:48,370 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a6ac82789/3c8ecb7126e64df7ab49376a7ad727d6/FLAGf0be34454 [2020-09-24 16:44:48,628 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a6ac82789/3c8ecb7126e64df7ab49376a7ad727d6 [2020-09-24 16:44:48,644 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:44:48,650 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:44:48,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:44:48,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:44:48,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:44:48,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:44:48" (1/1) ... [2020-09-24 16:44:48,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:48, skipping insertion in model container [2020-09-24 16:44:48,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:44:48" (1/1) ... [2020-09-24 16:44:48,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:44:48,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:44:49,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:44:49,425 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:44:49,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:44:49,557 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:44:49,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:49 WrapperNode [2020-09-24 16:44:49,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:44:49,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:44:49,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:44:49,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:44:49,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:49" (1/1) ... [2020-09-24 16:44:49,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:49" (1/1) ... [2020-09-24 16:44:49,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:49" (1/1) ... [2020-09-24 16:44:49,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:49" (1/1) ... [2020-09-24 16:44:49,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:49" (1/1) ... [2020-09-24 16:44:49,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:49" (1/1) ... [2020-09-24 16:44:49,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:49" (1/1) ... [2020-09-24 16:44:49,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:44:49,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:44:49,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:44:49,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:44:49,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:49" (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 16:44:49,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:44:49,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:44:49,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:44:49,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 16:44:49,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:44:49,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:44:49,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:44:49,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:44:49,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:44:49,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:44:49,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:44:49,737 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:44:49,737 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:44:49,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:44:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:44:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:44:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:44:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:44:49,738 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:44:49,739 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 16:44:49,739 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:44:49,739 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:44:49,739 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:44:49,739 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:44:49,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:44:49,740 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:44:49,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:44:49,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 16:44:49,740 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:44:49,741 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:44:49,741 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:44:49,741 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:44:49,741 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:44:49,741 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:44:49,741 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:44:49,742 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:44:49,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:44:49,742 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:44:49,742 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:44:49,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:44:49,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 16:44:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:44:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:44:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:44:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:44:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:44:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:44:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 16:44:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:44:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:44:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:44:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:44:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:44:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:44:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:44:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:44:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:44:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:44:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:44:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:44:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:44:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:44:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:44:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:44:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:44:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:44:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:44:49,746 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:44:49,746 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:44:49,746 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:44:49,746 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:44:49,746 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:44:49,746 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:44:49,746 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:44:49,747 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:44:49,747 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:44:49,747 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:44:49,747 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:44:49,747 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:44:49,747 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:44:49,748 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:44:49,748 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 16:44:49,748 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:44:49,748 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:44:49,748 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:44:49,748 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:44:49,749 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:44:49,749 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 16:44:49,749 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 16:44:49,749 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 16:44:49,749 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:44:49,749 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:44:49,749 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:44:49,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:44:49,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:44:49,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:44:50,968 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:44:50,969 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:44:50,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:44:50 BoogieIcfgContainer [2020-09-24 16:44:50,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:44:50,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:44:50,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:44:50,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:44:50,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:44:48" (1/3) ... [2020-09-24 16:44:50,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df56974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:44:50, skipping insertion in model container [2020-09-24 16:44:50,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:44:49" (2/3) ... [2020-09-24 16:44:50,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df56974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:44:50, skipping insertion in model container [2020-09-24 16:44:50,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:44:50" (3/3) ... [2020-09-24 16:44:50,987 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product53.cil.c [2020-09-24 16:44:50,999 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:44:51,011 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:44:51,035 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:44:51,068 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:44:51,068 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:44:51,069 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:44:51,069 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:44:51,069 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:44:51,069 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:44:51,069 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:44:51,069 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:44:51,099 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states. [2020-09-24 16:44:51,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 16:44:51,118 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:44:51,120 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] [2020-09-24 16:44:51,121 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:44:51,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:44:51,129 INFO L82 PathProgramCache]: Analyzing trace with hash 317689357, now seen corresponding path program 1 times [2020-09-24 16:44:51,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:44:51,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602367611] [2020-09-24 16:44:51,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:44:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:51,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:51,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:52,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:53,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:53,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:11,530 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:11,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 16:45:11,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:45:11,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20004 [2020-09-24 16:45:11,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:11,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 16:45:11,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 16:45:11,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-24 16:45:11,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:45:11,984 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:45:11,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:45:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:12,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:12,342 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:12,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:45:12,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:12,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-09-24 16:45:12,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:12,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:45:12,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:45:12,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 16:45:12,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:45:12,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:45:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:12,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:12,493 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:12,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:45:12,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:12,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 16:45:12,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:45:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:45:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:45:12,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:45:12,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:45:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:12,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:12,507 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:12,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:45:12,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:12,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:45:12,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:12,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:45:12,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:45:12,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:45:12,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:45:12,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:45:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:12,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:12,522 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:12,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:45:12,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:12,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:45:12,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:12,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:45:12,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:45:12,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:45:12,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:45:12,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:45:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:12,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:12,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:12,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:45:12,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:12,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:45:12,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:12,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:45:12,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:45:12,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:45:12,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:45:12,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:45:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:12,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:12,553 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:12,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:45:12,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:12,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:45:12,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:12,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:45:12,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:45:12,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:45:12,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:45:12,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:45:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:12,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:12,568 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:12,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:45:12,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:12,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:45:12,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:12,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:45:12,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:45:12,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:45:12,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:45:12,633 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 16:45:12,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602367611] [2020-09-24 16:45:12,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:45:12,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 16:45:12,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659368396] [2020-09-24 16:45:12,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:45:12,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:45:12,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:45:12,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:45:12,666 INFO L87 Difference]: Start difference. First operand 332 states. Second operand 8 states. [2020-09-24 16:45:13,223 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:45:14,349 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:45:14,707 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:45:15,061 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:45:15,401 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:45:15,679 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:45:16,483 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:45:16,786 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:45:17,155 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:45:18,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:45:18,584 INFO L93 Difference]: Finished difference Result 648 states and 808 transitions. [2020-09-24 16:45:18,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 16:45:18,590 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 16:45:18,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:45:18,627 INFO L225 Difference]: With dead ends: 648 [2020-09-24 16:45:18,628 INFO L226 Difference]: Without dead ends: 427 [2020-09-24 16:45:18,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 16:45:18,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-09-24 16:45:18,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 385. [2020-09-24 16:45:18,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-09-24 16:45:18,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 443 transitions. [2020-09-24 16:45:18,772 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 443 transitions. Word has length 142 [2020-09-24 16:45:18,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:45:18,773 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 443 transitions. [2020-09-24 16:45:18,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 16:45:18,773 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 443 transitions. [2020-09-24 16:45:18,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 16:45:18,779 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:45:18,780 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] [2020-09-24 16:45:18,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:45:18,780 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:45:18,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:45:18,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1676752335, now seen corresponding path program 1 times [2020-09-24 16:45:18,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:45:18,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495893099] [2020-09-24 16:45:18,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:45:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:18,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:19,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:24,354 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:24,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 16:45:24,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:45:24,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5515 [2020-09-24 16:45:24,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:24,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:45:24,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 16:45:24,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-24 16:45:24,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:45:24,750 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:45:24,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:45:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:24,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:25,035 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:25,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:45:25,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:25,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-24 16:45:25,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:25,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:45:25,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:45:25,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 16:45:25,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:45:25,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:45:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:25,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:25,117 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:25,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:45:25,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:25,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:45:25,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:25,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:45:25,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:45:25,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:45:25,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:45:25,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:45:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:25,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:25,131 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:25,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:45:25,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:25,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:45:25,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:25,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:45:25,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:45:25,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:45:25,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:45:25,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:45:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:25,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:25,144 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:25,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:45:25,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:25,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:45:25,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:45:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:45:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:45:25,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:45:25,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:45:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:25,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:25,154 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:25,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:45:25,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:25,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:45:25,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:25,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:45:25,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:45:25,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:45:25,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:45:25,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 16:45:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:25,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:25,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:25,287 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:25,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 16:45:25,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:45:25,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 16:45:25,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:25,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:45:25,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 16:45:25,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:45:25,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:45:25,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:45:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:25,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:25,365 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:25,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 16:45:25,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:25,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 16:45:25,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:25,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:45:25,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 16:45:25,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:45:25,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:45:25,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:45:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:25,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:25,442 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:25,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:45:25,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:25,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 16:45:25,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:25,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:45:25,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 16:45:25,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:45:25,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:45:25,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:45:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:25,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:25,553 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:25,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:45:25,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:25,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 16:45:25,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:45:25,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:45:25,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 16:45:25,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:45:25,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:45:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:25,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:25,640 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:25,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:45:25,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:25,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:45:25,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:25,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:45:25,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:45:25,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:45:25,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:45:25,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:45:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:25,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:25,652 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:25,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:45:25,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:25,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:45:25,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:25,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:45:25,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 16:45:25,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:45:25,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:45:25,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 16:45:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:25,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:25,681 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:25,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:45:25,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:25,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 16:45:25,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:25,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:45:25,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:45:25,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:45:25,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:45:25,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 16:45:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:45:25,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:45:25,736 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:45:25,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:45:25,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:45:25,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:45:25,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:45:25,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:45:25,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:45:25,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:45:25,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:45:25,862 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 16:45:25,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495893099] [2020-09-24 16:45:25,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:45:25,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 16:45:25,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899445467] [2020-09-24 16:45:25,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 16:45:25,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:45:25,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 16:45:25,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-09-24 16:45:25,867 INFO L87 Difference]: Start difference. First operand 385 states and 443 transitions. Second operand 14 states. [2020-09-24 16:45:26,517 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:45:27,536 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:45:27,925 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:45:28,311 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:45:28,702 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:45:29,030 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:45:29,586 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:45:29,925 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:45:30,407 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:45:30,762 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:45:31,071 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:45:31,446 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 16:45:31,863 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:45:32,289 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:45:32,633 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:45:33,259 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:45:33,625 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:45:34,015 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 16:45:34,417 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:45:34,801 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:45:35,138 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:45:37,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:45:37,466 INFO L93 Difference]: Finished difference Result 1062 states and 1388 transitions. [2020-09-24 16:45:37,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-24 16:45:37,468 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 195 [2020-09-24 16:45:37,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:45:37,475 INFO L225 Difference]: With dead ends: 1062 [2020-09-24 16:45:37,476 INFO L226 Difference]: Without dead ends: 741 [2020-09-24 16:45:37,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=210, Invalid=1050, Unknown=0, NotChecked=0, Total=1260 [2020-09-24 16:45:37,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2020-09-24 16:45:37,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 629. [2020-09-24 16:45:37,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2020-09-24 16:45:37,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 729 transitions. [2020-09-24 16:45:37,589 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 729 transitions. Word has length 195 [2020-09-24 16:45:37,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:45:37,590 INFO L479 AbstractCegarLoop]: Abstraction has 629 states and 729 transitions. [2020-09-24 16:45:37,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 16:45:37,591 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 729 transitions. [2020-09-24 16:45:37,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-24 16:45:37,596 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:45:37,597 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:45:37,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:45:37,597 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:45:37,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:45:37,598 INFO L82 PathProgramCache]: Analyzing trace with hash 910496084, now seen corresponding path program 1 times [2020-09-24 16:45:37,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:45:37,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662719409] [2020-09-24 16:45:37,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY