/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=0.3 --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_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:06:52,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:06:52,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:06:52,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:06:52,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:06:52,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:06:52,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:06:52,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:06:52,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:06:52,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:06:52,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:06:52,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:06:52,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:06:52,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:06:52,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:06:52,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:06:52,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:06:52,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:06:52,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:06:52,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:06:52,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:06:52,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:06:52,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:06:52,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:06:52,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:06:52,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:06:52,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:06:52,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:06:52,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:06:52,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:06:52,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:06:52,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:06:52,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:06:52,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:06:52,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:06:52,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:06:52,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:06:52,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:06:52,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:06:52,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:06:52,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:06:52,622 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 12:06:52,667 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:06:52,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:06:52,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:06:52,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:06:52,670 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:06:52,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:06:52,670 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:06:52,671 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:06:52,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:06:52,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:06:52,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:06:52,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:06:52,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:06:52,673 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:06:52,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:06:52,673 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:06:52,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:06:52,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:06:52,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:06:52,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:06:52,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:06:52,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:06:52,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:06:52,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:06:52,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:06:52,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:06:52,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:06:52,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:06:52,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:06:52,676 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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;log-additional-information=true; [2020-09-25 12:06:53,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:06:53,147 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:06:53,152 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:06:53,153 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:06:53,154 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:06:53,155 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c [2020-09-25 12:06:53,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff9329f0e/2ba786c7b31f4d0e9fcbd0090b350c4d/FLAGc0f2a6dfc [2020-09-25 12:06:53,816 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:06:53,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c [2020-09-25 12:06:53,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff9329f0e/2ba786c7b31f4d0e9fcbd0090b350c4d/FLAGc0f2a6dfc [2020-09-25 12:06:54,109 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff9329f0e/2ba786c7b31f4d0e9fcbd0090b350c4d [2020-09-25 12:06:54,120 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:06:54,127 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:06:54,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:06:54,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:06:54,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:06:54,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:06:54" (1/1) ... [2020-09-25 12:06:54,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:54, skipping insertion in model container [2020-09-25 12:06:54,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:06:54" (1/1) ... [2020-09-25 12:06:54,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:06:54,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:06:54,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:06:54,740 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:06:54,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:06:54,882 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:06:54,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:54 WrapperNode [2020-09-25 12:06:54,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:06:54,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:06:54,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:06:54,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:06:54,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:54" (1/1) ... [2020-09-25 12:06:54,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:54" (1/1) ... [2020-09-25 12:06:54,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:54" (1/1) ... [2020-09-25 12:06:54,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:54" (1/1) ... [2020-09-25 12:06:54,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:54" (1/1) ... [2020-09-25 12:06:54,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:54" (1/1) ... [2020-09-25 12:06:54,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:54" (1/1) ... [2020-09-25 12:06:54,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:06:54,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:06:54,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:06:54,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:06:54,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:54" (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 12:06:55,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:06:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:06:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:06:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:06:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:06:55,082 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 12:06:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:06:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:06:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:06:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:06:55,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:06:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:06:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 12:06:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 12:06:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 12:06:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:06:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:06:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:06:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:06:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:06:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:06:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:06:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:06:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:06:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:06:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:06:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:06:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:06:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:06:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:06:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:06:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:06:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:06:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:06:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:06:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:06:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:06:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 12:06:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 12:06:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:06:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:06:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:06:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:06:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:06:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 12:06:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 12:06:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:06:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:06:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:06:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:06:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:06:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:06:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 12:06:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:06:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:06:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:06:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:06:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 12:06:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:06:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 12:06:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 12:06:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:06:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:06:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:06:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:06:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:06:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:06:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:06:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:06:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:06:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:06:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:06:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:06:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:06:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:06:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:06:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:06:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:06:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:06:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:06:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:06:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:06:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:06:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:06:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:06:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:06:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:06:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:06:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:06:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:06:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:06:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:06:56,294 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:06:56,294 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:06:56,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:06:56 BoogieIcfgContainer [2020-09-25 12:06:56,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:06:56,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:06:56,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:06:56,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:06:56,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:06:54" (1/3) ... [2020-09-25 12:06:56,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0b6b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:06:56, skipping insertion in model container [2020-09-25 12:06:56,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:54" (2/3) ... [2020-09-25 12:06:56,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0b6b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:06:56, skipping insertion in model container [2020-09-25 12:06:56,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:06:56" (3/3) ... [2020-09-25 12:06:56,321 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2020-09-25 12:06:56,332 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:06:56,347 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:06:56,366 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:06:56,393 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:06:56,394 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:06:56,394 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:06:56,394 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:06:56,394 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:06:56,394 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:06:56,394 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:06:56,394 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:06:56,420 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states. [2020-09-25 12:06:56,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 12:06:56,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:06:56,439 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 12:06:56,439 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:06:56,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:06:56,446 INFO L82 PathProgramCache]: Analyzing trace with hash 391863934, now seen corresponding path program 1 times [2020-09-25 12:06:56,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:06:56,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081859480] [2020-09-25 12:06:56,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:06:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:56,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:57,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:59,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:01,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:01,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 12:07:01,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:07:01,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 12:07:01,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:01,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:01,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:07:01,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 12:07:01,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 12:07:01,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 12:07:02,233 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:07:02,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:07:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:02,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:02,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:02,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:07:02,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:02,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-09-25 12:07:02,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:02,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:02,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:02,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:02,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 12:07:02,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:02,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:07:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:02,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:02,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:02,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:02,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:02,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:07:02,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:02,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:02,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:02,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:02,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:02,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:02,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:07:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:02,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:02,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:02,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:02,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:02,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:07:02,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:02,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:02,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:02,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:02,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:02,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:02,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:07:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:02,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:02,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:02,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:07:02,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:02,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:07:02,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:02,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:02,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:02,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:02,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:07:02,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:02,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:07:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:02,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:02,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:02,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:02,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:02,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:07:02,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:02,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:02,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:02,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:02,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:02,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:02,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 12:07:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:02,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:02,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:02,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:07:02,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:02,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:07:02,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:02,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:02,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:07:02,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:07:02,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:07:02,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:02,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 12:07:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:02,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:02,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:02,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:07:02,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:02,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:07:02,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:02,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:02,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:07:02,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:07:02,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:07:02,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:02,915 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 12:07:02,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081859480] [2020-09-25 12:07:02,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:07:02,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 12:07:02,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24980528] [2020-09-25 12:07:02,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 12:07:02,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:07:02,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 12:07:02,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 12:07:02,956 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 4 states. [2020-09-25 12:07:03,597 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:07:05,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:07:05,663 INFO L93 Difference]: Finished difference Result 608 states and 738 transitions. [2020-09-25 12:07:05,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:07:05,666 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 12:07:05,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:07:05,689 INFO L225 Difference]: With dead ends: 608 [2020-09-25 12:07:05,689 INFO L226 Difference]: Without dead ends: 428 [2020-09-25 12:07:05,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:07:05,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-09-25 12:07:05,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 354. [2020-09-25 12:07:05,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-09-25 12:07:05,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 391 transitions. [2020-09-25 12:07:05,863 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 391 transitions. Word has length 142 [2020-09-25 12:07:05,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:07:05,865 INFO L479 AbstractCegarLoop]: Abstraction has 354 states and 391 transitions. [2020-09-25 12:07:05,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 12:07:05,865 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 391 transitions. [2020-09-25 12:07:05,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 12:07:05,879 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:07:05,879 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] [2020-09-25 12:07:05,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:07:05,880 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:07:05,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:07:05,881 INFO L82 PathProgramCache]: Analyzing trace with hash -458746170, now seen corresponding path program 1 times [2020-09-25 12:07:05,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:07:05,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657706662] [2020-09-25 12:07:05,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:07:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:06,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:06,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:06,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:09,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:10,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:10,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:10,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 12:07:10,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:07:10,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 12:07:10,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:10,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:10,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:07:10,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 12:07:10,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 12:07:10,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,372 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:07:11,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:07:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:07:11,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-25 12:07:11,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 12:07:11,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:07:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:11,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:07:11,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:11,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:07:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:11,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:07:11,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:11,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:07:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:07:11,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:07:11,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:07:11,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:07:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:11,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:07:11,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:11,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 12:07:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:07:11,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:07:11,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:11,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 12:07:11,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:07:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:11,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:07:11,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:07:11,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:07:11,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 12:07:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:07:11,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:07:11,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:07:11,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:11,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:07:11,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 12:07:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:11,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:11,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:11,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:07:11,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:11,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:07:11,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:11,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:11,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:07:11,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:07:11,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:07:11,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:11,800 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 12:07:11,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657706662] [2020-09-25 12:07:11,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:07:11,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 12:07:11,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831370118] [2020-09-25 12:07:11,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 12:07:11,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:07:11,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 12:07:11,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:07:11,804 INFO L87 Difference]: Start difference. First operand 354 states and 391 transitions. Second operand 9 states. [2020-09-25 12:07:12,348 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:07:13,709 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:14,104 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:14,498 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:14,890 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:07:15,250 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:15,584 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:15,891 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:17,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:07:17,452 INFO L93 Difference]: Finished difference Result 1003 states and 1264 transitions. [2020-09-25 12:07:17,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 12:07:17,453 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 12:07:17,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:07:17,462 INFO L225 Difference]: With dead ends: 1003 [2020-09-25 12:07:17,463 INFO L226 Difference]: Without dead ends: 759 [2020-09-25 12:07:17,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 12:07:17,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2020-09-25 12:07:17,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 581. [2020-09-25 12:07:17,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 581 states. [2020-09-25 12:07:17,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 667 transitions. [2020-09-25 12:07:17,575 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 667 transitions. Word has length 151 [2020-09-25 12:07:17,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:07:17,576 INFO L479 AbstractCegarLoop]: Abstraction has 581 states and 667 transitions. [2020-09-25 12:07:17,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 12:07:17,577 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 667 transitions. [2020-09-25 12:07:17,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 12:07:17,580 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:07:17,580 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] [2020-09-25 12:07:17,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:07:17,581 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:07:17,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:07:17,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1222143391, now seen corresponding path program 1 times [2020-09-25 12:07:17,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:07:17,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1187515414] [2020-09-25 12:07:17,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:07:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:17,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:17,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:18,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:22,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:22,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:22,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 12:07:22,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:07:22,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 12:07:22,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:22,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:22,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 12:07:22,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 12:07:22,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 12:07:22,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:22,978 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:07:22,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:07:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:23,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:23,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:23,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:07:23,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:23,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-25 12:07:23,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:23,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:23,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:23,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:23,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 12:07:23,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:23,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:07:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:23,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:23,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:23,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:23,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:23,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:07:23,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:23,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:23,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:23,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:23,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:23,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:23,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:07:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:23,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:23,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:23,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:23,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:23,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:07:23,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:23,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:23,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:23,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:23,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:23,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:07:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:23,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:23,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:23,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:07:23,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:23,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:07:23,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:23,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:23,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:23,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:23,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:07:23,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:23,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:07:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:23,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:23,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:23,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:23,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:23,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:07:23,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:23,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:23,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:23,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:23,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:23,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:23,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 12:07:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:23,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:23,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:23,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:07:23,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:23,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:07:23,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:23,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:23,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:23,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:23,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:07:23,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:23,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 12:07:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:23,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:23,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:23,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:23,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:07:23,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:07:23,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:07:23,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:23,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:23,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:07:23,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:07:23,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:07:23,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:23,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:07:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:23,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:23,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:23,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:23,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:23,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:07:23,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:23,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:23,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:23,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:23,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:23,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:23,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 12:07:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:23,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:23,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:23,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:07:23,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:23,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:07:23,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:23,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:23,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:23,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:23,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:07:23,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:23,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 12:07:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:23,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:23,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:23,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:07:23,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:23,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:07:23,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:23,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:23,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:07:23,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:23,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:07:23,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:23,510 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 12:07:23,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1187515414] [2020-09-25 12:07:23,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:07:23,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 12:07:23,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307337707] [2020-09-25 12:07:23,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 12:07:23,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:07:23,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 12:07:23,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:07:23,515 INFO L87 Difference]: Start difference. First operand 581 states and 667 transitions. Second operand 11 states. [2020-09-25 12:07:24,202 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:07:25,977 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:26,321 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:26,657 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:26,974 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:27,287 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:27,808 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:07:28,219 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:07:28,537 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:07:28,920 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:07:29,551 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:29,887 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 12:07:30,308 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:31,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:07:31,324 INFO L93 Difference]: Finished difference Result 1589 states and 2021 transitions. [2020-09-25 12:07:31,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 12:07:31,326 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 156 [2020-09-25 12:07:31,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:07:31,334 INFO L225 Difference]: With dead ends: 1589 [2020-09-25 12:07:31,335 INFO L226 Difference]: Without dead ends: 1118 [2020-09-25 12:07:31,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=199, Invalid=671, Unknown=0, NotChecked=0, Total=870 [2020-09-25 12:07:31,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2020-09-25 12:07:31,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 935. [2020-09-25 12:07:31,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 935 states. [2020-09-25 12:07:31,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1088 transitions. [2020-09-25 12:07:31,478 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1088 transitions. Word has length 156 [2020-09-25 12:07:31,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:07:31,479 INFO L479 AbstractCegarLoop]: Abstraction has 935 states and 1088 transitions. [2020-09-25 12:07:31,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 12:07:31,479 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1088 transitions. [2020-09-25 12:07:31,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 12:07:31,484 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:07:31,484 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:07:31,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:07:31,484 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:07:31,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:07:31,485 INFO L82 PathProgramCache]: Analyzing trace with hash -815952950, now seen corresponding path program 1 times [2020-09-25 12:07:31,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:07:31,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755311946] [2020-09-25 12:07:31,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:07:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:31,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:31,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:36,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:36,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 12:07:36,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:07:36,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-25 12:07:36,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:36,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:36,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:07:36,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 12:07:36,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 12:07:36,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:36,849 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:07:36,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:07:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:36,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:37,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:37,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:07:37,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:37,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-25 12:07:37,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:37,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:37,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:37,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:37,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 12:07:37,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:37,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:07:37,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:37,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:37,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:37,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:37,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:37,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:07:37,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:37,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:37,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:37,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:37,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:37,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:37,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:07:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:37,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:37,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:37,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:37,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:37,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:07:37,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:37,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:37,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:37,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:37,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:37,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:37,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:07:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:37,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:37,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:37,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:07:37,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:37,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:07:37,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:37,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:37,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:37,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:37,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:07:37,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:07:37,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:07:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:37,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:37,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:37,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:07:37,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:37,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:07:37,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:37,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:37,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:37,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:37,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:07:37,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:07:37,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 12:07:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:37,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:37,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:37,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:07:37,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:37,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:07:37,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:37,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:37,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:07:37,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:07:37,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:07:37,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:37,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 12:07:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:37,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:37,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:37,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:07:37,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:37,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:07:37,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:37,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:37,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:37,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:37,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:07:37,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:37,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 12:07:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:37,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:37,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:37,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:37,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 12:07:37,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:07:37,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 12:07:37,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:37,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:37,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:37,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 12:07:37,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 12:07:37,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:37,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:07:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:37,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:37,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:37,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:07:37,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:37,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:07:37,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:37,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:37,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:37,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:37,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:07:37,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:37,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:07:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:37,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:37,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:37,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:07:37,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:37,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:07:37,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:37,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:37,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:37,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:37,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 12:07:37,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:37,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 12:07:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:37,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:37,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:37,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 12:07:37,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:37,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:07:37,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:37,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:37,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:07:37,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:07:37,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:07:37,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:07:37,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 12:07:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:37,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:37,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:37,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:07:37,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:37,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:07:37,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:37,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:37,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:07:37,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:07:37,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:07:37,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:07:37,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 12:07:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:07:37,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:07:37,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:07:37,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:07:37,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:07:37,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:07:37,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:07:37,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:07:37,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:07:37,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:07:37,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:07:37,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:07:37,479 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 12:07:37,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755311946] [2020-09-25 12:07:37,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:07:37,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 12:07:37,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046710443] [2020-09-25 12:07:37,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:07:37,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:07:37,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:07:37,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:07:37,483 INFO L87 Difference]: Start difference. First operand 935 states and 1088 transitions. Second operand 10 states. [2020-09-25 12:07:38,008 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:07:38,814 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:07:40,710 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:07:41,438 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186