/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --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_spec4_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:51:59,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:51:59,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:51:59,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:51:59,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:51:59,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:51:59,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:51:59,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:51:59,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:51:59,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:51:59,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:51:59,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:51:59,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:51:59,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:51:59,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:51:59,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:51:59,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:51:59,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:51:59,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:51:59,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:51:59,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:51:59,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:51:59,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:51:59,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:51:59,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:51:59,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:51:59,678 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:51:59,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:51:59,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:51:59,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:51:59,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:51:59,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:51:59,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:51:59,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:51:59,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:51:59,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:51:59,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:51:59,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:51:59,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:51:59,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:51:59,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:51:59,689 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 [2020-09-25 09:51:59,715 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:51:59,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:51:59,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:51:59,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:51:59,717 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:51:59,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:51:59,717 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:51:59,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:51:59,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:51:59,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:51:59,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:51:59,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:51:59,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:51:59,719 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:51:59,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:51:59,719 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:51:59,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:51:59,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:51:59,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:51:59,720 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:51:59,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:51:59,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:51:59,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:51:59,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:51:59,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:51:59,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:51:59,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:51:59,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:51:59,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:51:59,722 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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:52:00,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:52:00,192 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:52:00,199 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:52:00,201 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:52:00,203 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:52:00,204 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product32.cil.c [2020-09-25 09:52:00,295 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b7f888f8/82302399fe7144f5a0fac1f90c80306b/FLAGddf7ff2aa [2020-09-25 09:52:00,891 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:52:00,892 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product32.cil.c [2020-09-25 09:52:00,910 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b7f888f8/82302399fe7144f5a0fac1f90c80306b/FLAGddf7ff2aa [2020-09-25 09:52:01,166 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b7f888f8/82302399fe7144f5a0fac1f90c80306b [2020-09-25 09:52:01,180 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:52:01,186 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:52:01,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:52:01,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:52:01,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:52:01,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:52:01" (1/1) ... [2020-09-25 09:52:01,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:01, skipping insertion in model container [2020-09-25 09:52:01,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:52:01" (1/1) ... [2020-09-25 09:52:01,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:52:01,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:52:01,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:52:01,697 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:52:01,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:52:01,907 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:52:01,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:01 WrapperNode [2020-09-25 09:52:01,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:52:01,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:52:01,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:52:01,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:52:01,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:01" (1/1) ... [2020-09-25 09:52:01,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:01" (1/1) ... [2020-09-25 09:52:01,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:01" (1/1) ... [2020-09-25 09:52:01,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:01" (1/1) ... [2020-09-25 09:52:01,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:01" (1/1) ... [2020-09-25 09:52:01,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:01" (1/1) ... [2020-09-25 09:52:01,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:01" (1/1) ... [2020-09-25 09:52:01,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:52:01,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:52:01,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:52:01,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:52:02,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:01" (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 [2020-09-25 09:52:02,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:52:02,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:52:02,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:52:02,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:52:02,090 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:52:02,090 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:52:02,090 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:52:02,090 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:52:02,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:52:02,091 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:52:02,091 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:52:02,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:52:02,091 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:52:02,092 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:52:02,092 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:52:02,092 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:52:02,092 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:52:02,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:52:02,093 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:52:02,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:52:02,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 09:52:02,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:52:02,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:52:02,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:52:02,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:52:02,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:52:02,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:52:02,095 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:52:02,095 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:52:02,095 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 09:52:02,095 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:52:02,095 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 09:52:02,096 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:52:02,096 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:52:02,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:52:02,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:52:02,096 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:52:02,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 09:52:02,097 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 09:52:02,097 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 09:52:02,097 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:52:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:52:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:52:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:52:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:52:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:52:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:52:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 09:52:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:52:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:52:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:52:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:52:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:52:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:52:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:52:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:52:02,100 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:52:02,100 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:52:02,100 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:52:02,100 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:52:02,100 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:52:02,100 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:52:02,101 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:52:02,101 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:52:02,101 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:52:02,101 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 09:52:02,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:52:02,102 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:52:02,102 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:52:02,102 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:52:02,102 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:52:02,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:52:02,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:52:02,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:52:02,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:52:02,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:52:02,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:52:02,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:52:02,103 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:52:02,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:52:02,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:52:02,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:52:02,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:52:02,104 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:52:02,105 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:52:02,105 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 09:52:02,105 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 09:52:02,105 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:52:02,105 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:52:02,105 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 09:52:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 09:52:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:52:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 09:52:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:52:02,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:52:02,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:52:03,344 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:52:03,345 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:52:03,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:52:03 BoogieIcfgContainer [2020-09-25 09:52:03,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:52:03,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:52:03,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:52:03,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:52:03,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:52:01" (1/3) ... [2020-09-25 09:52:03,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f25feee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:52:03, skipping insertion in model container [2020-09-25 09:52:03,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:52:01" (2/3) ... [2020-09-25 09:52:03,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f25feee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:52:03, skipping insertion in model container [2020-09-25 09:52:03,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:52:03" (3/3) ... [2020-09-25 09:52:03,361 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product32.cil.c [2020-09-25 09:52:03,373 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:52:03,384 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:52:03,405 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:52:03,438 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:52:03,438 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:52:03,439 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:52:03,439 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:52:03,439 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:52:03,439 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:52:03,439 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:52:03,440 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:52:03,468 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states. [2020-09-25 09:52:03,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 09:52:03,486 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:52:03,488 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] [2020-09-25 09:52:03,488 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:52:03,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:52:03,496 INFO L82 PathProgramCache]: Analyzing trace with hash -29194710, now seen corresponding path program 1 times [2020-09-25 09:52:03,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:52:03,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097552301] [2020-09-25 09:52:03,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:52:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:04,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:04,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:05,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:06,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:08,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:08,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 09:52:08,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:52:08,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 09:52:08,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:08,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:08,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:52:08,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 09:52:08,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 09:52:08,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 09:52:09,569 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:09,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:09,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:09,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:09,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:09,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:09,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-25 09:52:09,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:09,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:09,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:09,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:09,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 09:52:09,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:09,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:09,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:09,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:09,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:09,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:09,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:09,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:09,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:09,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:09,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:09,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:09,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:10,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:10,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:10,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:10,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:10,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:10,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:10,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:10,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:10,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:10,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:10,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:10,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:10,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:10,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:10,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:10,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:10,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:10,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:52:10,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:10,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:10,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:10,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:10,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:10,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:10,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:10,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:10,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:10,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:10,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:10,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:10,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:10,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:10,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:10,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:10,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:10,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:10,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:52:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:10,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:10,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:10,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:10,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:10,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 09:52:10,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:10,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:10,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:52:10,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:10,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:10,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:10,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 09:52:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:10,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:10,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:10,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:10,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:10,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:10,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:10,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:10,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:10,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:10,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:10,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:10,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:52:10,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097552301] [2020-09-25 09:52:10,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:10,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:52:10,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789828684] [2020-09-25 09:52:10,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:52:10,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:10,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:52:10,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:52:10,227 INFO L87 Difference]: Start difference. First operand 320 states. Second operand 8 states. [2020-09-25 09:52:11,092 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:12,267 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:12,589 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:12,971 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:13,322 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:13,617 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:13,966 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:14,324 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:52:16,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:52:16,424 INFO L93 Difference]: Finished difference Result 648 states and 797 transitions. [2020-09-25 09:52:16,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:52:16,427 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 09:52:16,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:52:16,450 INFO L225 Difference]: With dead ends: 648 [2020-09-25 09:52:16,450 INFO L226 Difference]: Without dead ends: 449 [2020-09-25 09:52:16,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:52:16,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2020-09-25 09:52:16,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 402. [2020-09-25 09:52:16,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-25 09:52:16,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 457 transitions. [2020-09-25 09:52:16,609 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 457 transitions. Word has length 142 [2020-09-25 09:52:16,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:52:16,610 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 457 transitions. [2020-09-25 09:52:16,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:52:16,610 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 457 transitions. [2020-09-25 09:52:16,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 09:52:16,617 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:52:16,617 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] [2020-09-25 09:52:16,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:52:16,618 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:52:16,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:52:16,618 INFO L82 PathProgramCache]: Analyzing trace with hash 677940431, now seen corresponding path program 1 times [2020-09-25 09:52:16,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:52:16,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726888513] [2020-09-25 09:52:16,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:52:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:16,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:16,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:17,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:21,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:21,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 09:52:21,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:52:21,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 09:52:21,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:21,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:21,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:52:21,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 09:52:21,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 09:52:21,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:21,996 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:21,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:22,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:22,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:22,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:22,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:22,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-25 09:52:22,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:22,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:22,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:22,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:22,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 09:52:22,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:22,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:22,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:22,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:22,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:22,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:22,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:22,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:22,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:22,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:22,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:22,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:22,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:22,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:22,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:22,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:22,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:22,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:22,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:52:22,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:22,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:22,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:22,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:22,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:22,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:22,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:22,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:22,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:22,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:52:22,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:22,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:22,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:22,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:22,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:22,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:22,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:22,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:22,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:22,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:22,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:22,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:22,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:22,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:22,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:22,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:22,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:22,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:22,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:52:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:22,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:22,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:22,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:52:22,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:22,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:52:22,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:22,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:22,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:52:22,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:22,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 09:52:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:22,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:22,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:22,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:22,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:22,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:22,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:22,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:22,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:22,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:22,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:22,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 09:52:22,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:52:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:22,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:22,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:22,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:22,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:22,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:52:22,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:22,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:22,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:52:22,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:52:22,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:52:22,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 09:52:22,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:52:22,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726888513] [2020-09-25 09:52:22,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:22,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:52:22,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721317203] [2020-09-25 09:52:22,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:52:22,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:22,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:52:22,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:52:22,465 INFO L87 Difference]: Start difference. First operand 402 states and 457 transitions. Second operand 5 states. [2020-09-25 09:52:23,001 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:52:25,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:52:25,561 INFO L93 Difference]: Finished difference Result 1066 states and 1297 transitions. [2020-09-25 09:52:25,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:52:25,561 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 09:52:25,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:52:25,571 INFO L225 Difference]: With dead ends: 1066 [2020-09-25 09:52:25,571 INFO L226 Difference]: Without dead ends: 774 [2020-09-25 09:52:25,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:52:25,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2020-09-25 09:52:25,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 669. [2020-09-25 09:52:25,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-09-25 09:52:25,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 775 transitions. [2020-09-25 09:52:25,712 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 775 transitions. Word has length 148 [2020-09-25 09:52:25,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:52:25,714 INFO L479 AbstractCegarLoop]: Abstraction has 669 states and 775 transitions. [2020-09-25 09:52:25,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:52:25,714 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 775 transitions. [2020-09-25 09:52:25,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 09:52:25,722 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:52:25,723 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] [2020-09-25 09:52:25,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:52:25,723 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:52:25,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:52:25,723 INFO L82 PathProgramCache]: Analyzing trace with hash -101785791, now seen corresponding path program 1 times [2020-09-25 09:52:25,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:52:25,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [692833243] [2020-09-25 09:52:25,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:52:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:25,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:25,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:26,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:27,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:30,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:30,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 09:52:30,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:52:30,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 09:52:30,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:30,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:30,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 09:52:30,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 09:52:30,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 09:52:30,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:31,220 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:31,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:52:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:31,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:31,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:31,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:52:31,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:31,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-09-25 09:52:31,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:31,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:31,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:31,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:31,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 09:52:31,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:31,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:52:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:31,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:31,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:31,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:31,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:31,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:31,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:31,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:31,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:31,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:31,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:31,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:31,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:52:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:31,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:31,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:31,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:31,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:31,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:31,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:31,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:31,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:31,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:31,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:31,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:31,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:52:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:31,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:31,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:31,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:31,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:31,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:52:31,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:31,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:31,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:31,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:31,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:31,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:31,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:52:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:31,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:31,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:31,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:31,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:31,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:52:31,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:31,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:31,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:31,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:31,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:31,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:31,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 09:52:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:31,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:31,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:31,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:52:31,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:31,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:52:31,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:31,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:31,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:31,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:31,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:52:31,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:31,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 09:52:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:31,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:31,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:31,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:52:31,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:31,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:52:31,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:31,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:31,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:31,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:31,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:52:31,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:31,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:52:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:31,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:31,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:31,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:31,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:31,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:52:31,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:52:31,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 09:52:31,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:31,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:31,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:52:31,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:52:31,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:52:31,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:31,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:52:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:31,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:31,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:31,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:52:31,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:31,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 09:52:31,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:31,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:31,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:52:31,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:52:31,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 09:52:31,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:31,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:52:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:31,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:31,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:31,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:52:31,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:31,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:31,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:31,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:31,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:31,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:31,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:52:31,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:31,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 09:52:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:31,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:31,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:31,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:31,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:31,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:52:31,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:31,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:31,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:52:31,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:31,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:31,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:52:31,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 09:52:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:52:31,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:52:31,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:52:31,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:52:31,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:52:31,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:52:31,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:52:31,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:52:31,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:52:31,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:52:31,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:52:31,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:52:31,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:52:31,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [692833243] [2020-09-25 09:52:31,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:52:31,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 09:52:31,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624414950] [2020-09-25 09:52:31,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 09:52:31,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:52:31,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 09:52:31,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 09:52:31,857 INFO L87 Difference]: Start difference. First operand 669 states and 775 transitions. Second operand 11 states. [2020-09-25 09:52:32,420 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:33,875 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:34,219 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:52:34,582 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:34,935 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 09:52:35,271 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:52:35,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:52:35,794 INFO L93 Difference]: Finished difference Result 1073 states and 1315 transitions. [2020-09-25 09:52:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 09:52:35,796 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 174 [2020-09-25 09:52:35,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:52:35,797 INFO L225 Difference]: With dead ends: 1073 [2020-09-25 09:52:35,798 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 09:52:35,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=167, Invalid=385, Unknown=0, NotChecked=0, Total=552 [2020-09-25 09:52:35,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 09:52:35,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 09:52:35,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 09:52:35,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 09:52:35,803 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2020-09-25 09:52:35,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:52:35,803 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 09:52:35,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 09:52:35,803 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 09:52:35,804 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 09:52:35,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:52:35,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 09:52:36,022 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:36,200 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:36,365 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:36,528 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:36,696 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:36,837 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 7 [2020-09-25 09:52:37,001 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:37,160 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:37,324 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:37,486 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:37,661 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:37,789 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 7 [2020-09-25 09:52:37,962 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:38,129 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:38,285 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:38,438 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:38,581 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 7 [2020-09-25 09:52:38,741 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:38,893 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:39,045 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:39,199 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:39,353 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:39,513 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:39,673 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:39,832 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:39,989 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:40,141 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:40,294 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:40,443 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:40,596 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:40,753 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:40,906 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:41,229 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 09:52:41,537 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-25 09:52:41,863 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 09:52:42,170 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 188 [2020-09-25 09:52:42,492 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 09:52:42,660 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:42,804 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:52:42,961 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:43,115 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:43,268 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:43,418 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:43,571 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:43,724 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:43,883 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:44,041 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:44,204 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:44,361 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:44,513 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:44,665 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:44,814 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:44,968 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:45,125 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:45,277 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:45,429 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:45,588 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:45,736 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:45,889 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:46,224 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 09:52:46,471 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-25 09:52:46,738 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:47,005 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:47,288 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:47,436 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:47,683 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-25 09:52:47,840 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:47,988 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:48,140 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:48,306 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:48,464 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:48,616 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:48,773 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:48,926 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:49,073 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:49,225 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:49,382 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:49,813 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 09:52:50,060 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-25 09:52:50,325 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:50,589 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:50,853 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 09:52:51,005 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:51,251 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-09-25 09:52:51,412 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:51,565 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:51,718 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:51,870 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:52,018 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:52:52,176 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:52,334 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:52,492 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:52:52,645 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:52,797 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:52:52,947 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187