/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:13:07,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:13:07,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:13:07,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:13:07,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:13:07,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:13:07,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:13:07,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:13:07,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:13:07,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:13:07,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:13:07,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:13:07,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:13:07,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:13:07,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:13:07,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:13:07,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:13:07,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:13:07,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:13:07,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:13:07,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:13:07,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:13:07,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:13:07,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:13:07,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:13:07,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:13:07,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:13:07,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:13:07,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:13:07,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:13:07,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:13:07,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:13:07,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:13:07,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:13:07,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:13:07,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:13:07,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:13:07,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:13:07,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:13:07,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:13:07,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:13:07,602 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 05:13:07,658 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:13:07,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:13:07,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:13:07,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:13:07,661 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:13:07,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:13:07,661 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:13:07,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:13:07,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:13:07,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:13:07,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:13:07,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:13:07,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:13:07,664 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:13:07,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:13:07,664 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:13:07,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:13:07,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:13:07,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:13:07,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:13:07,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:13:07,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:13:07,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:13:07,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:13:07,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:13:07,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:13:07,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:13:07,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:13:07,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:13:07,667 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:13:08,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:13:08,142 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:13:08,146 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:13:08,148 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:13:08,148 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:13:08,149 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c [2020-09-25 05:13:08,225 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb8f252ec/cea8c0aced9d45ab88bd1ff461f6e9bd/FLAGcd90677a9 [2020-09-25 05:13:08,793 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:13:08,794 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c [2020-09-25 05:13:08,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb8f252ec/cea8c0aced9d45ab88bd1ff461f6e9bd/FLAGcd90677a9 [2020-09-25 05:13:09,082 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb8f252ec/cea8c0aced9d45ab88bd1ff461f6e9bd [2020-09-25 05:13:09,095 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:13:09,101 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:13:09,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:13:09,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:13:09,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:13:09,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:13:09" (1/1) ... [2020-09-25 05:13:09,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:09, skipping insertion in model container [2020-09-25 05:13:09,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:13:09" (1/1) ... [2020-09-25 05:13:09,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:13:09,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:13:09,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:13:09,804 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:13:09,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:13:10,001 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:13:10,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:10 WrapperNode [2020-09-25 05:13:10,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:13:10,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:13:10,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:13:10,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:13:10,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:10" (1/1) ... [2020-09-25 05:13:10,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:10" (1/1) ... [2020-09-25 05:13:10,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:10" (1/1) ... [2020-09-25 05:13:10,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:10" (1/1) ... [2020-09-25 05:13:10,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:10" (1/1) ... [2020-09-25 05:13:10,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:10" (1/1) ... [2020-09-25 05:13:10,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:10" (1/1) ... [2020-09-25 05:13:10,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:13:10,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:13:10,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:13:10,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:13:10,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:10" (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 05:13:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:13:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:13:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:13:10,185 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:13:10,185 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:13:10,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:13:10,185 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:13:10,186 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:13:10,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:13:10,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:13:10,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:13:10,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:13:10,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:13:10,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:13:10,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:13:10,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:13:10,189 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:13:10,189 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:13:10,189 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:13:10,190 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:13:10,190 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 05:13:10,190 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:13:10,190 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:13:10,190 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:13:10,191 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:13:10,191 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:13:10,192 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:13:10,192 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:13:10,192 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 05:13:10,193 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 05:13:10,193 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:13:10,193 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:13:10,193 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:13:10,193 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:13:10,193 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:13:10,193 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:13:10,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:13:10,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 05:13:10,194 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:13:10,196 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:13:10,196 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:13:10,196 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:13:10,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:13:10,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:13:10,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:13:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:13:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:13:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:13:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:13:10,199 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:13:10,199 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:13:10,199 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:13:10,199 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:13:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:13:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:13:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:13:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:13:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:13:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:13:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:13:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:13:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:13:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:13:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:13:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:13:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:13:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:13:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:13:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:13:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:13:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:13:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:13:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:13:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:13:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:13:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:13:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:13:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:13:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:13:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:13:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:13:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 05:13:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:13:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:13:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:13:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 05:13:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:13:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:13:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:13:10,207 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:13:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:13:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:13:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 05:13:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 05:13:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:13:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:13:10,208 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:13:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:13:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:13:10,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:13:11,327 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:13:11,328 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:13:11,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:13:11 BoogieIcfgContainer [2020-09-25 05:13:11,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:13:11,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:13:11,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:13:11,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:13:11,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:13:09" (1/3) ... [2020-09-25 05:13:11,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c38610d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:13:11, skipping insertion in model container [2020-09-25 05:13:11,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:13:10" (2/3) ... [2020-09-25 05:13:11,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c38610d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:13:11, skipping insertion in model container [2020-09-25 05:13:11,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:13:11" (3/3) ... [2020-09-25 05:13:11,344 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product54.cil.c [2020-09-25 05:13:11,356 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:13:11,367 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:13:11,389 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:13:11,421 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:13:11,421 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:13:11,421 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:13:11,421 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:13:11,422 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:13:11,422 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:13:11,422 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:13:11,422 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:13:11,451 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states. [2020-09-25 05:13:11,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 05:13:11,485 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:11,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:13:11,487 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:11,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:11,494 INFO L82 PathProgramCache]: Analyzing trace with hash -757984097, now seen corresponding path program 1 times [2020-09-25 05:13:11,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:11,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831239865] [2020-09-25 05:13:11,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:12,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:12,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:13,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:14,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:14,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:16,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:16,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:16,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 05:13:16,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:13:16,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 05:13:16,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:16,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:16,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:16,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 05:13:16,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:16,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:13:17,338 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:17,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:17,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-25 05:13:17,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:17,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:17,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:17,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:17,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:17,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:17,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:17,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:17,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:17,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:17,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:17,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:17,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:17,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:17,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:17,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:17,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:17,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:17,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:17,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:17,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:17,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:17,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:17,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:17,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:17,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:17,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:17,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:17,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:17,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 05:13:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:17,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:17,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:17,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:17,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:17,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 05:13:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:17,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:17,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:17,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:17,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:17,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:17,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:17,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:17,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:17,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:17,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:17,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:17,661 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 05:13:17,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831239865] [2020-09-25 05:13:17,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:17,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:13:17,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636405618] [2020-09-25 05:13:17,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:13:17,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:17,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:13:17,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:13:17,694 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 4 states. [2020-09-25 05:13:19,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:19,200 INFO L93 Difference]: Finished difference Result 554 states and 656 transitions. [2020-09-25 05:13:19,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:13:19,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 05:13:19,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:19,223 INFO L225 Difference]: With dead ends: 554 [2020-09-25 05:13:19,223 INFO L226 Difference]: Without dead ends: 345 [2020-09-25 05:13:19,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:13:19,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-25 05:13:19,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 294. [2020-09-25 05:13:19,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-09-25 05:13:19,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 322 transitions. [2020-09-25 05:13:19,347 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 322 transitions. Word has length 148 [2020-09-25 05:13:19,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:19,348 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 322 transitions. [2020-09-25 05:13:19,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:13:19,349 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 322 transitions. [2020-09-25 05:13:19,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 05:13:19,353 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:19,354 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] [2020-09-25 05:13:19,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:13:19,354 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:19,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:19,355 INFO L82 PathProgramCache]: Analyzing trace with hash 764850235, now seen corresponding path program 1 times [2020-09-25 05:13:19,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:19,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747589547] [2020-09-25 05:13:19,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:19,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:19,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:21,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:21,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:22,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:24,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:24,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:24,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 05:13:24,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:13:24,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 05:13:24,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:24,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:24,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:24,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 05:13:24,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:13:24,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:24,738 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:24,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:24,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:24,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:24,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:24,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:24,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 05:13:24,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:24,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:24,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:24,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:24,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:24,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:24,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:24,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:24,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:24,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:24,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:24,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:24,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:24,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:24,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:24,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:24,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:24,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:24,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:24,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:24,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:24,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:24,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:24,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:24,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:24,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:24,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:24,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:24,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:24,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:24,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:24,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:24,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:24,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:24,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:24,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:24,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:24,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:24,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:24,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:24,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:24,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:24,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:24,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:24,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:24,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:24,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:24,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:24,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:24,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:24,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:24,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:24,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:24,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:24,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:24,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:24,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:24,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:24,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:24,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:24,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:24,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:24,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:24,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:24,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:24,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:24,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:24,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 05:13:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:24,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:24,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:24,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:24,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:24,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:24,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:24,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:24,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:24,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:24,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:24,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:24,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:13:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:24,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:24,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:24,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:24,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:24,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:24,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:24,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:24,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:24,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:24,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:24,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:24,946 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 05:13:24,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747589547] [2020-09-25 05:13:24,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:24,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:13:24,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273582737] [2020-09-25 05:13:24,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:13:24,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:24,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:13:24,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:13:24,951 INFO L87 Difference]: Start difference. First operand 294 states and 322 transitions. Second operand 5 states. [2020-09-25 05:13:25,673 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:13:26,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:26,934 INFO L93 Difference]: Finished difference Result 479 states and 547 transitions. [2020-09-25 05:13:26,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:13:26,935 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 05:13:26,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:26,942 INFO L225 Difference]: With dead ends: 479 [2020-09-25 05:13:26,942 INFO L226 Difference]: Without dead ends: 334 [2020-09-25 05:13:26,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:13:26,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-09-25 05:13:27,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 284. [2020-09-25 05:13:27,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-09-25 05:13:27,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 309 transitions. [2020-09-25 05:13:27,006 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 309 transitions. Word has length 149 [2020-09-25 05:13:27,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:27,006 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 309 transitions. [2020-09-25 05:13:27,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:13:27,007 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 309 transitions. [2020-09-25 05:13:27,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 05:13:27,009 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:27,009 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] [2020-09-25 05:13:27,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:13:27,010 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:27,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:27,010 INFO L82 PathProgramCache]: Analyzing trace with hash 938731103, now seen corresponding path program 1 times [2020-09-25 05:13:27,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:27,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992165804] [2020-09-25 05:13:27,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:27,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:27,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:28,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:28,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:29,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 05:13:32,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:13:32,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-09-25 05:13:32,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 05:13:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:13:32,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:32,379 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:32,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:32,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 05:13:32,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:32,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:32,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:32,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:32,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:32,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:32,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:32,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:32,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:32,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:32,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:32,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:32,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:32,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:32,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:32,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:32,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:32,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:32,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:32,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:32,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:32,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:32,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:32,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:32,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:32,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:32,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:32,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:32,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:32,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:32,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:32,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:32,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:32,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:32,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:13:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:32,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:32,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:32,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:32,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:13:32,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:32,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 05:13:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:32,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:13:32,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:32,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:32,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:32,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:32,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:13:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:32,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:32,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:32,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:32,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:32,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:32,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:32,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:32,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:32,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:32,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:32,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:32,626 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 05:13:32,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992165804] [2020-09-25 05:13:32,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:32,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:13:32,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931989134] [2020-09-25 05:13:32,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:13:32,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:32,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:13:32,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:13:32,631 INFO L87 Difference]: Start difference. First operand 284 states and 309 transitions. Second operand 6 states. [2020-09-25 05:13:33,294 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:13:34,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:34,538 INFO L93 Difference]: Finished difference Result 526 states and 612 transitions. [2020-09-25 05:13:34,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 05:13:34,539 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 05:13:34,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:34,543 INFO L225 Difference]: With dead ends: 526 [2020-09-25 05:13:34,544 INFO L226 Difference]: Without dead ends: 357 [2020-09-25 05:13:34,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:13:34,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-09-25 05:13:34,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 284. [2020-09-25 05:13:34,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-09-25 05:13:34,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 308 transitions. [2020-09-25 05:13:34,588 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 308 transitions. Word has length 162 [2020-09-25 05:13:34,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:34,589 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 308 transitions. [2020-09-25 05:13:34,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:13:34,589 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 308 transitions. [2020-09-25 05:13:34,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 05:13:34,592 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:34,592 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] [2020-09-25 05:13:34,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:13:34,592 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:34,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:34,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1308377398, now seen corresponding path program 1 times [2020-09-25 05:13:34,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:34,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112766098] [2020-09-25 05:13:34,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:34,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:34,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:35,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:35,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:37,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:37,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:38,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:38,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:39,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:39,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:39,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-25 05:13:39,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 05:13:39,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 05:13:39,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:39,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:39,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:13:39,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-25 05:13:39,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:13:39,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:39,944 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:39,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:39,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:40,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:40,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:40,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:40,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 05:13:40,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:40,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:40,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:40,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:40,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:40,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:40,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:40,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:40,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:40,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:40,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:40,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:40,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:40,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:40,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:40,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:40,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:40,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:40,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:40,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:40,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:40,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:40,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:40,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:40,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:40,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:40,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:40,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:40,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:40,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:40,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:40,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:40,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:40,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:13:40,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:40,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:40,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:40,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:40,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:40,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:40,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:40,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:40,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:40,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:40,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:40,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:40,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:40,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:40,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:40,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:40,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:40,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:40,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:40,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:40,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:40,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:40,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:40,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:40,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:40,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:40,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:40,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:40,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:40,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:40,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:13:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:40,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:40,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:40,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:40,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:40,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:40,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:40,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:40,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:40,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:40,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:40,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:40,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:13:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:40,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:40,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:40,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:40,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 05:13:40,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:13:40,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 05:13:40,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:40,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:40,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:13:40,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 05:13:40,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:13:40,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:40,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:40,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:40,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:40,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 05:13:40,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:40,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:13:40,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:40,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:40,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:13:40,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 05:13:40,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:13:40,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:40,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:40,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:40,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:40,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:13:40,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:40,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:13:40,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:40,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:40,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:13:40,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:13:40,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:13:40,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:40,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:40,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:40,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:40,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:40,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:40,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:13:40,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:40,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:40,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:40,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:40,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:13:40,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:13:40,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 05:13:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:40,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:40,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:40,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:40,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:40,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:40,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:40,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:40,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:40,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:40,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:40,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:13:40,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 05:13:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:40,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:40,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:40,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:40,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:40,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:40,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:40,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:40,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:40,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:13:40,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:40,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:13:40,492 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 05:13:40,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112766098] [2020-09-25 05:13:40,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:40,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:13:40,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343251753] [2020-09-25 05:13:40,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:13:40,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:40,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:13:40,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:13:40,496 INFO L87 Difference]: Start difference. First operand 284 states and 308 transitions. Second operand 9 states. [2020-09-25 05:13:41,153 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:13:42,813 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:13:44,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:44,158 INFO L93 Difference]: Finished difference Result 720 states and 862 transitions. [2020-09-25 05:13:44,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 05:13:44,158 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 180 [2020-09-25 05:13:44,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:44,164 INFO L225 Difference]: With dead ends: 720 [2020-09-25 05:13:44,164 INFO L226 Difference]: Without dead ends: 551 [2020-09-25 05:13:44,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2020-09-25 05:13:44,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2020-09-25 05:13:44,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 410. [2020-09-25 05:13:44,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-09-25 05:13:44,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 443 transitions. [2020-09-25 05:13:44,260 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 443 transitions. Word has length 180 [2020-09-25 05:13:44,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:44,260 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 443 transitions. [2020-09-25 05:13:44,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:13:44,261 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 443 transitions. [2020-09-25 05:13:44,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-25 05:13:44,263 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:44,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:13:44,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:13:44,264 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:44,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:44,264 INFO L82 PathProgramCache]: Analyzing trace with hash 937711856, now seen corresponding path program 1 times [2020-09-25 05:13:44,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:44,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778513566] [2020-09-25 05:13:44,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:44,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:45,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:45,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:45,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:46,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:48,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:49,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:49,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-25 05:13:49,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:13:49,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 05:13:49,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:49,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:49,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:13:49,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 05:13:49,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 05:13:49,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:49,643 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:13:49,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:13:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:49,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:49,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:49,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:13:49,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:49,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 05:13:49,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:49,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:49,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:49,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:49,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:49,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:49,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:13:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:49,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:49,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:49,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:49,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:49,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:49,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:49,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:49,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:49,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:49,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:49,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:49,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:13:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:49,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:49,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:49,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:49,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:49,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:49,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:49,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:49,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:49,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:49,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:49,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:49,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:13:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:49,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:49,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:49,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:49,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:49,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:49,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:49,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:49,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:49,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:49,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:49,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:49,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:13:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:49,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:49,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:49,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:49,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:49,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:13:49,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:49,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:49,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:49,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:49,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:49,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:49,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:13:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:49,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:49,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:49,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:49,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:49,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:49,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:49,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:49,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:49,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:49,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:13:49,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:49,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:13:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:49,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:49,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:49,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:13:49,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:49,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:49,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:49,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:49,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:49,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:49,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:13:49,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:13:49,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:13:49,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:49,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:49,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:49,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 05:13:49,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:49,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 05:13:49,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:49,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:49,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:49,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:49,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 05:13:49,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:49,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:49,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:49,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:49,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 05:13:49,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:49,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:13:49,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:49,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:49,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:49,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:49,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:49,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:49,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:49,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:49,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:49,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:13:49,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:49,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:13:49,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:49,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:49,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:49,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:49,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:49,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:49,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:13:49,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:49,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:49,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:49,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:13:49,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:49,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:13:49,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:49,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:49,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:49,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:49,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:49,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:49,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:13:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:49,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:49,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:49,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:13:49,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:49,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:13:49,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:49,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:49,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:49,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:49,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:49,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:13:49,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:13:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:49,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:49,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:49,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:13:49,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:49,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:13:49,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:49,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:49,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:13:49,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:49,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:13:49,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:49,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 05:13:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:49,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:49,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:49,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:49,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:49,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:49,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:49,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:49,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:49,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:49,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:13:49,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:49,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-25 05:13:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:49,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:49,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:13:49,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:13:49,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:13:49,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:13:49,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:13:49,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:13:49,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:13:49,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:13:49,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:13:49,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:13:50,070 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 05:13:50,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778513566] [2020-09-25 05:13:50,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:13:50,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:13:50,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311022693] [2020-09-25 05:13:50,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:13:50,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:13:50,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:13:50,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:13:50,074 INFO L87 Difference]: Start difference. First operand 410 states and 443 transitions. Second operand 7 states. [2020-09-25 05:13:50,787 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:13:54,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:13:54,066 INFO L93 Difference]: Finished difference Result 1066 states and 1352 transitions. [2020-09-25 05:13:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 05:13:54,070 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2020-09-25 05:13:54,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:13:54,078 INFO L225 Difference]: With dead ends: 1066 [2020-09-25 05:13:54,078 INFO L226 Difference]: Without dead ends: 1063 [2020-09-25 05:13:54,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 05:13:54,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2020-09-25 05:13:54,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 713. [2020-09-25 05:13:54,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2020-09-25 05:13:54,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 790 transitions. [2020-09-25 05:13:54,194 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 790 transitions. Word has length 204 [2020-09-25 05:13:54,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:13:54,195 INFO L479 AbstractCegarLoop]: Abstraction has 713 states and 790 transitions. [2020-09-25 05:13:54,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:13:54,195 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 790 transitions. [2020-09-25 05:13:54,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-09-25 05:13:54,200 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:13:54,201 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:13:54,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:13:54,201 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:13:54,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:13:54,201 INFO L82 PathProgramCache]: Analyzing trace with hash -180342053, now seen corresponding path program 1 times [2020-09-25 05:13:54,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:13:54,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1922695040] [2020-09-25 05:13:54,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:13:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:13:54,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:54,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:13:54,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking...