/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:12:08,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:12:08,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:12:08,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:12:08,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:12:08,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:12:08,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:12:08,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:12:08,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:12:08,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:12:08,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:12:08,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:12:08,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:12:08,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:12:08,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:12:08,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:12:08,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:12:08,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:12:08,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:12:08,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:12:08,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:12:08,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:12:08,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:12:08,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:12:08,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:12:08,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:12:08,678 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:12:08,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:12:08,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:12:08,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:12:08,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:12:08,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:12:08,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:12:08,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:12:08,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:12:08,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:12:08,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:12:08,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:12:08,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:12:08,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:12:08,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:12:08,693 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:12:08,720 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:12:08,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:12:08,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:12:08,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:12:08,722 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:12:08,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:12:08,722 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:12:08,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:12:08,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:12:08,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:12:08,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:12:08,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:12:08,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:12:08,724 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:12:08,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:12:08,724 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:12:08,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:12:08,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:12:08,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:12:08,725 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:12:08,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:12:08,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:12:08,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:12:08,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:12:08,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:12:08,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:12:08,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:12:08,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:12:08,727 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:12:08,728 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:12:09,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:12:09,240 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:12:09,244 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:12:09,247 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:12:09,247 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:12:09,248 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2020-09-24 19:12:09,342 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/23f47304f/332417d3a2964cf99929b9cd61e075f5/FLAG2af11495a [2020-09-24 19:12:09,988 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:12:09,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2020-09-24 19:12:10,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/23f47304f/332417d3a2964cf99929b9cd61e075f5/FLAG2af11495a [2020-09-24 19:12:10,225 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/23f47304f/332417d3a2964cf99929b9cd61e075f5 [2020-09-24 19:12:10,240 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:12:10,245 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:12:10,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:12:10,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:12:10,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:12:10,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:12:10" (1/1) ... [2020-09-24 19:12:10,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e5903c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:10, skipping insertion in model container [2020-09-24 19:12:10,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:12:10" (1/1) ... [2020-09-24 19:12:10,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:12:10,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:12:10,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:12:10,716 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:12:10,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:12:11,020 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:12:11,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:11 WrapperNode [2020-09-24 19:12:11,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:12:11,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:12:11,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:12:11,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:12:11,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:11" (1/1) ... [2020-09-24 19:12:11,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:11" (1/1) ... [2020-09-24 19:12:11,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:11" (1/1) ... [2020-09-24 19:12:11,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:11" (1/1) ... [2020-09-24 19:12:11,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:11" (1/1) ... [2020-09-24 19:12:11,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:11" (1/1) ... [2020-09-24 19:12:11,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:11" (1/1) ... [2020-09-24 19:12:11,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:12:11,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:12:11,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:12:11,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:12:11,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:11" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:12:11,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:12:11,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:12:11,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:12:11,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 19:12:11,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:12:11,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:12:11,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:12:11,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:12:11,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:12:11,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:12:11,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:12:11,260 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:12:11,260 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:12:11,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:12:11,261 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:12:11,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:12:11,261 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:12:11,261 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:12:11,262 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 19:12:11,262 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:12:11,262 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 19:12:11,262 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:12:11,263 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:12:11,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:12:11,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:12:11,263 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:12:11,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:12:11,263 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 19:12:11,264 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 19:12:11,264 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:12:11,264 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:12:11,264 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:12:11,264 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:12:11,264 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:12:11,265 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:12:11,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:12:11,265 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:12:11,265 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:12:11,265 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:12:11,265 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:12:11,266 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:12:11,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:12:11,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:12:11,266 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:12:11,266 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:12:11,267 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:12:11,267 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:12:11,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 19:12:11,267 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:12:11,267 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:12:11,267 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:12:11,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:12:11,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:12:11,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:12:11,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:12:11,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:12:11,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:12:11,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:12:11,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:12:11,269 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:12:11,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:12:11,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:12:11,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:12:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:12:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:12:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:12:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:12:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:12:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:12:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:12:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:12:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:12:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:12:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:12:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:12:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:12:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:12:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:12:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:12:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:12:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:12:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:12:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:12:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:12:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 19:12:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 19:12:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:12:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:12:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:12:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 19:12:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:12:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 19:12:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:12:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:12:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:12:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:12:12,679 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:12:12,680 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:12:12,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:12:12 BoogieIcfgContainer [2020-09-24 19:12:12,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:12:12,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:12:12,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:12:12,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:12:12,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:12:10" (1/3) ... [2020-09-24 19:12:12,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f31b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:12:12, skipping insertion in model container [2020-09-24 19:12:12,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:11" (2/3) ... [2020-09-24 19:12:12,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f31b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:12:12, skipping insertion in model container [2020-09-24 19:12:12,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:12:12" (3/3) ... [2020-09-24 19:12:12,701 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2020-09-24 19:12:12,713 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:12:12,726 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:12:12,751 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:12:12,797 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:12:12,797 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:12:12,798 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:12:12,798 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:12:12,798 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:12:12,799 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:12:12,799 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:12:12,800 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:12:12,840 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states. [2020-09-24 19:12:12,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 19:12:12,866 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:12,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:12,868 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:12,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:12,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1278717342, now seen corresponding path program 1 times [2020-09-24 19:12:12,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:12,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1193786799] [2020-09-24 19:12:12,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:13,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:13,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:14,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:14,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 19:12:14,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:14,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1049 [2020-09-24 19:12:14,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 19:12:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:14,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:12:14,710 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:14,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:14,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:14,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:14,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:14,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:14,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-24 19:12:14,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:14,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:14,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:14,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:14,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:14,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:14,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:14,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:15,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:15,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:15,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:15,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:15,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:15,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:15,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:15,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:15,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:15,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:15,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:15,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:15,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:15,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:15,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:15,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:15,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:15,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:15,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:15,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:15,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:15,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:15,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:15,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:15,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:12:15,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:15,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:15,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:15,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:15,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:15,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:15,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:15,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:15,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:15,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:15,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:15,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:15,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:15,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:12:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:15,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:15,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:15,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:15,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:15,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:15,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:15,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:15,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:15,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:15,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:15,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:12:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:15,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:15,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:15,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:15,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:15,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:12:15,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:15,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:15,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:15,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:15,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:15,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:15,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1193786799] [2020-09-24 19:12:15,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:15,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:12:15,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552752795] [2020-09-24 19:12:15,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:12:15,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:15,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:12:15,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:12:15,163 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 3 states. [2020-09-24 19:12:16,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:16,855 INFO L93 Difference]: Finished difference Result 520 states and 619 transitions. [2020-09-24 19:12:16,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:12:16,857 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 19:12:16,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:16,880 INFO L225 Difference]: With dead ends: 520 [2020-09-24 19:12:16,880 INFO L226 Difference]: Without dead ends: 320 [2020-09-24 19:12:16,887 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:12:16,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-09-24 19:12:17,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 274. [2020-09-24 19:12:17,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-09-24 19:12:17,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 299 transitions. [2020-09-24 19:12:17,049 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 299 transitions. Word has length 142 [2020-09-24 19:12:17,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:17,051 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 299 transitions. [2020-09-24 19:12:17,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:12:17,051 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 299 transitions. [2020-09-24 19:12:17,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 19:12:17,066 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:17,066 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] [2020-09-24 19:12:17,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:12:17,067 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:17,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:17,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1976883783, now seen corresponding path program 1 times [2020-09-24 19:12:17,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:17,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374898836] [2020-09-24 19:12:17,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:17,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:17,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:18,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:18,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 19:12:18,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:18,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1037 [2020-09-24 19:12:18,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:18,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:18,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 19:12:18,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:12:18,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:18,646 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:18,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:18,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:18,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:18,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:18,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:18,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 19:12:18,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:18,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:18,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:18,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:18,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:18,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:18,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:18,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:18,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:18,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:18,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:18,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:18,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:18,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:18,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:18,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:18,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:18,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:18,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:18,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:18,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:18,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:18,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:18,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:18,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:18,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:18,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:18,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:18,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:18,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:18,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:18,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:18,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:18,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:18,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:18,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:18,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:18,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:18,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:18,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:18,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:18,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:18,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:18,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:18,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:18,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:18,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:18,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:18,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:18,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:12:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:18,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:18,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:18,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:18,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:18,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:18,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:18,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:18,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:18,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:18,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:18,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:12:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:18,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:18,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:18,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:18,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:18,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:18,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:18,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:18,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:18,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:18,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:18,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:18,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1374898836] [2020-09-24 19:12:18,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:18,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:12:18,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374424095] [2020-09-24 19:12:18,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:12:18,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:18,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:12:18,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:12:18,876 INFO L87 Difference]: Start difference. First operand 274 states and 299 transitions. Second operand 4 states. [2020-09-24 19:12:19,588 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:12:20,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:20,773 INFO L93 Difference]: Finished difference Result 427 states and 482 transitions. [2020-09-24 19:12:20,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:12:20,776 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 19:12:20,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:20,781 INFO L225 Difference]: With dead ends: 427 [2020-09-24 19:12:20,781 INFO L226 Difference]: Without dead ends: 303 [2020-09-24 19:12:20,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:12:20,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-09-24 19:12:20,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 264. [2020-09-24 19:12:20,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-09-24 19:12:20,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 286 transitions. [2020-09-24 19:12:20,885 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 286 transitions. Word has length 143 [2020-09-24 19:12:20,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:20,887 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 286 transitions. [2020-09-24 19:12:20,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:12:20,887 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 286 transitions. [2020-09-24 19:12:20,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 19:12:20,889 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:20,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:20,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:12:20,890 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:20,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:20,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1434420260, now seen corresponding path program 1 times [2020-09-24 19:12:20,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:20,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265184162] [2020-09-24 19:12:20,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:20,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:21,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:21,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:21,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 19:12:21,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:21,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1050 [2020-09-24 19:12:22,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:22,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:22,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 19:12:22,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:12:22,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:22,371 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:22,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:22,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:22,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:22,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:22,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:22,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 19:12:22,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:22,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:22,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:22,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:22,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:22,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:22,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:22,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:22,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:22,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:22,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:22,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:22,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:22,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:22,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:22,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:22,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:22,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:22,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:22,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:22,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:22,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:22,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:22,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:22,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:22,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:22,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:22,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:22,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:22,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:22,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:22,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:22,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:22,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:22,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:22,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:22,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:22,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:22,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:22,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:22,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:22,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:22,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:22,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:22,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:22,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:22,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:22,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:22,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:22,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:12:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:22,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:22,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:22,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:12:22,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:22,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:22,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:22,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:22,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:22,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:12:22,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:22,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:12:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:22,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:22,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:22,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:22,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:22,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:22,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:22,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:22,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:22,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:22,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:22,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:12:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:22,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:22,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:22,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:22,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:22,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:22,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:22,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:22,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:22,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:22,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:22,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:22,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265184162] [2020-09-24 19:12:22,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:22,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:12:22,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599884384] [2020-09-24 19:12:22,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:12:22,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:22,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:12:22,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:12:22,646 INFO L87 Difference]: Start difference. First operand 264 states and 286 transitions. Second operand 5 states. [2020-09-24 19:12:23,196 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:12:25,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:25,347 INFO L93 Difference]: Finished difference Result 646 states and 749 transitions. [2020-09-24 19:12:25,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:12:25,348 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 19:12:25,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:25,354 INFO L225 Difference]: With dead ends: 646 [2020-09-24 19:12:25,354 INFO L226 Difference]: Without dead ends: 492 [2020-09-24 19:12:25,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:12:25,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-09-24 19:12:25,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 408. [2020-09-24 19:12:25,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2020-09-24 19:12:25,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 453 transitions. [2020-09-24 19:12:25,431 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 453 transitions. Word has length 156 [2020-09-24 19:12:25,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:25,432 INFO L479 AbstractCegarLoop]: Abstraction has 408 states and 453 transitions. [2020-09-24 19:12:25,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:12:25,432 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 453 transitions. [2020-09-24 19:12:25,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 19:12:25,434 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:25,435 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] [2020-09-24 19:12:25,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:12:25,435 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:25,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:25,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1340372779, now seen corresponding path program 1 times [2020-09-24 19:12:25,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:25,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114662848] [2020-09-24 19:12:25,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:25,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:26,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:26,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 19:12:26,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:26,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1064 [2020-09-24 19:12:26,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:26,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 19:12:26,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 19:12:26,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 19:12:26,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:26,969 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:26,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:27,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:27,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:27,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:27,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:27,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-24 19:12:27,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:27,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:27,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:27,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 19:12:27,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:27,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:27,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:27,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:27,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:27,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:27,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:27,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:27,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:27,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:27,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:12:27,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:27,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:27,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:27,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:27,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:27,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:27,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:27,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:12:27,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:27,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:27,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:27,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:27,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:27,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:27,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:12:27,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:27,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:27,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:27,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:12:27,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:27,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:27,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:27,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:27,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:27,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:27,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:27,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:27,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:27,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:27,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:12:27,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:27,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:12:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:27,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:27,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:27,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:12:27,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:27,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:27,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:27,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:27,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:27,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:12:27,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:27,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 19:12:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:27,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:27,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:27,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:27,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:27,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:12:27,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:27,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:12:27,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:27,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:12:27,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:27,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:12:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:27,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:27,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:27,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:27,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:27,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:27,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:27,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:27,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:27,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:27,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:27,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:27,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2114662848] [2020-09-24 19:12:27,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:27,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:12:27,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73485985] [2020-09-24 19:12:27,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:12:27,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:27,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:12:27,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:12:27,470 INFO L87 Difference]: Start difference. First operand 408 states and 453 transitions. Second operand 10 states. [2020-09-24 19:12:28,016 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:12:29,749 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-24 19:12:30,322 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 19:12:30,779 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:12:31,204 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:12:31,516 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:12:31,877 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:12:32,182 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:12:32,790 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:12:34,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:34,761 INFO L93 Difference]: Finished difference Result 1106 states and 1353 transitions. [2020-09-24 19:12:34,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:12:34,762 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-24 19:12:34,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:34,770 INFO L225 Difference]: With dead ends: 1106 [2020-09-24 19:12:34,770 INFO L226 Difference]: Without dead ends: 808 [2020-09-24 19:12:34,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 19:12:34,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2020-09-24 19:12:34,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 703. [2020-09-24 19:12:34,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 703 states. [2020-09-24 19:12:34,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 817 transitions. [2020-09-24 19:12:34,886 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 817 transitions. Word has length 161 [2020-09-24 19:12:34,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:34,887 INFO L479 AbstractCegarLoop]: Abstraction has 703 states and 817 transitions. [2020-09-24 19:12:34,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:12:34,887 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 817 transitions. [2020-09-24 19:12:34,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-24 19:12:34,891 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:34,891 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] [2020-09-24 19:12:34,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:12:34,892 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:34,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:34,892 INFO L82 PathProgramCache]: Analyzing trace with hash -277417807, now seen corresponding path program 1 times [2020-09-24 19:12:34,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:34,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685645966] [2020-09-24 19:12:34,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:35,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:35,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:35,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:35,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 19:12:36,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:36,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1050 [2020-09-24 19:12:36,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:12:36,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-24 19:12:36,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:12:36,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:36,453 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:36,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:36,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:36,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:36,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:36,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:36,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 19:12:36,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:36,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:36,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:36,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:36,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:36,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:36,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:36,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:36,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:36,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:36,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:36,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:36,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:36,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:36,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:36,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:36,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:36,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:36,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:36,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:36,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:36,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:36,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:36,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:36,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:36,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:36,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:36,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:36,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:36,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:36,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:36,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:36,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:36,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:36,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:36,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:36,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:36,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:36,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:36,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:36,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:36,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:36,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:36,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:36,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:12:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:36,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:36,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:36,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:12:36,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:36,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:36,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:36,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:36,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:12:36,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:36,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 19:12:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:36,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:36,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:36,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:12:36,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:36,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:36,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:36,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:12:36,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:36,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:36,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:12:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:36,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:36,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:36,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:36,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:36,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:36,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:36,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:36,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:36,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:36,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 19:12:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:36,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:36,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:36,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:36,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:36,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:36,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:36,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:36,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:36,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:36,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:36,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685645966] [2020-09-24 19:12:36,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:36,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:12:36,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108203629] [2020-09-24 19:12:36,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:12:36,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:36,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:12:36,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:12:36,724 INFO L87 Difference]: Start difference. First operand 703 states and 817 transitions. Second operand 6 states. [2020-09-24 19:12:37,283 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:12:39,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:39,646 INFO L93 Difference]: Finished difference Result 1784 states and 2248 transitions. [2020-09-24 19:12:39,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:12:39,647 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-09-24 19:12:39,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:39,657 INFO L225 Difference]: With dead ends: 1784 [2020-09-24 19:12:39,657 INFO L226 Difference]: Without dead ends: 1191 [2020-09-24 19:12:39,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:12:39,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2020-09-24 19:12:39,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1005. [2020-09-24 19:12:39,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1005 states. [2020-09-24 19:12:39,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1182 transitions. [2020-09-24 19:12:39,848 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1182 transitions. Word has length 166 [2020-09-24 19:12:39,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:39,848 INFO L479 AbstractCegarLoop]: Abstraction has 1005 states and 1182 transitions. [2020-09-24 19:12:39,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:12:39,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1182 transitions. [2020-09-24 19:12:39,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-09-24 19:12:39,855 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:39,855 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:39,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:12:39,856 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:39,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:39,856 INFO L82 PathProgramCache]: Analyzing trace with hash -881213993, now seen corresponding path program 1 times [2020-09-24 19:12:39,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:39,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [74760400] [2020-09-24 19:12:39,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:39,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 319 [2020-09-24 19:12:40,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:12:40,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-09-24 19:12:40,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:40,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-24 19:12:40,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-24 19:12:40,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:41,337 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:41,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:41,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:41,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:41,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:41,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:41,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-24 19:12:41,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:41,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:41,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:41,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:41,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:41,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:41,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:41,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:41,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:41,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:41,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:41,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:41,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:41,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:41,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:41,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:41,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:41,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:41,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:41,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:41,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:41,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:41,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:41,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:41,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:41,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:41,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:41,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:41,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:41,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:41,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:41,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:41,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:41,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:41,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:41,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:41,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:41,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:41,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:41,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:41,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:41,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:41,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:41,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:41,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:41,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:41,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:41,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:41,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:41,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:12:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:41,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:41,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:41,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:12:41,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:41,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:41,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:41,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:41,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:41,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:41,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:41,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 19:12:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:41,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:41,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:41,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:41,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-24 19:12:41,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:41,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-09-24 19:12:41,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:41,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:41,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:41,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:12:41,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:41,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:41,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:12:42,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:42,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-24 19:12:42,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:42,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:42,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 19:12:42,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:42,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:12:42,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:42,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-24 19:12:42,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:42,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:42,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:42,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:42,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:12:42,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:42,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:12:42,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:42,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:42,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:42,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:42,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:12:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:12:42,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:42,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:42,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:42,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:42,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:42,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:42,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:12:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:12:42,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:42,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:12:42,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:42,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:42,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:42,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:42,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:12:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:12:42,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:42,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:42,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:42,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:42,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:42,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:42,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:12:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:42,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:42,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:42,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:42,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:42,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:42,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:42,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:12:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:12:42,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:42,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:42,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:42,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:42,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:42,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:42,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-24 19:12:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:12:42,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:42,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:12:42,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:42,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:42,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 19:12:42,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:42,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:42,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:42,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:42,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:42,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:42,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:42,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:42,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-09-24 19:12:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:12:42,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:42,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:12:42,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:42,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:42,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:12:42,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:42,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-09-24 19:12:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:42,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:42,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:42,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:42,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:42,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:42,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:42,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-09-24 19:12:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:42,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:42,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:42,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:42,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:42,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:42,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:42,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:42,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:42,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:42,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:42,561 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:12:42,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [74760400] [2020-09-24 19:12:42,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:12:42,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 19:12:42,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920786114] [2020-09-24 19:12:42,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:12:42,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:42,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:12:42,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:12:42,565 INFO L87 Difference]: Start difference. First operand 1005 states and 1182 transitions. Second operand 8 states. [2020-09-24 19:12:43,058 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:12:45,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:45,825 INFO L93 Difference]: Finished difference Result 2355 states and 2918 transitions. [2020-09-24 19:12:45,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:12:45,825 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 264 [2020-09-24 19:12:45,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:45,839 INFO L225 Difference]: With dead ends: 2355 [2020-09-24 19:12:45,839 INFO L226 Difference]: Without dead ends: 1460 [2020-09-24 19:12:45,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:12:45,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2020-09-24 19:12:46,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1121. [2020-09-24 19:12:46,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1121 states. [2020-09-24 19:12:46,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1318 transitions. [2020-09-24 19:12:46,045 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1318 transitions. Word has length 264 [2020-09-24 19:12:46,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:46,046 INFO L479 AbstractCegarLoop]: Abstraction has 1121 states and 1318 transitions. [2020-09-24 19:12:46,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:12:46,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1318 transitions. [2020-09-24 19:12:46,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-09-24 19:12:46,056 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:46,057 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:46,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:12:46,057 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:46,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:46,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1420730586, now seen corresponding path program 1 times [2020-09-24 19:12:46,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:46,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331518506] [2020-09-24 19:12:46,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:46,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:46,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:46,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 351 [2020-09-24 19:12:47,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:12:47,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1015 [2020-09-24 19:12:47,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:12:47,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-09-24 19:12:47,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:12:47,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:47,421 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:47,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:47,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 19:12:47,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:47,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:47,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:47,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:47,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:47,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:47,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:47,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:47,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:47,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:47,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:47,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:47,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:47,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:47,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:47,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:47,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:47,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:47,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:12:47,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:47,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:47,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:47,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:47,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:47,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:47,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:47,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:47,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:47,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:47,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:12:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:12:47,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:47,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:47,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:47,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:47,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:47,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:12:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-24 19:12:47,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:47,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-09-24 19:12:47,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:47,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:12:47,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:12:47,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:12:47,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:47,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:47,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:47,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:47,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:12:48,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-24 19:12:48,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:12:48,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 19:12:48,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:12:48,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:48,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:12:48,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-09-24 19:12:48,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:12:48,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:12:48,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:12:48,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:48,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:12:48,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 19:12:48,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:12:48,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:48,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:12:48,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:48,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:12:48,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:12:48,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:48,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:48,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:48,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:48,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:48,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:12:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:12:48,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:12:48,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:48,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:12:48,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:48,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:48,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:12:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:12:48,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:48,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:48,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:48,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:48,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:48,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:12:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:48,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:12:48,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:48,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:48,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:48,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:48,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:12:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:12:48,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:48,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:48,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:48,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:48,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:48,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-24 19:12:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:12:48,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:12:48,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:48,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 19:12:48,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:48,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:48,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:48,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:48,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:48,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:48,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:48,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:48,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 19:12:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:12:48,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:48,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:48,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:12:48,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:48,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:48,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-09-24 19:12:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:12:48,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:48,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:48,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:12:48,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:48,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:48,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-24 19:12:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 19:12:48,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:12:48,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:48,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 19:12:48,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:48,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:48,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:12:48,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:48,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:48,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:48,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:48,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:48,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:12:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:48,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:48,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:48,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:48,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:48,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:48,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 19:12:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:12:48,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:48,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:48,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:48,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:48,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:48,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-09-24 19:12:48,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:48,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:48,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:48,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:48,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:48,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:48,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2020-09-24 19:12:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:48,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:48,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:48,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:48,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:48,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:48,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:48,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:48,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:48,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:48,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:48,789 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-24 19:12:48,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331518506] [2020-09-24 19:12:48,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:12:48,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 19:12:48,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014046478] [2020-09-24 19:12:48,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 19:12:48,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:48,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 19:12:48,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:12:48,792 INFO L87 Difference]: Start difference. First operand 1121 states and 1318 transitions. Second operand 12 states. [2020-09-24 19:12:50,369 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:12:50,697 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:12:51,010 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:12:51,365 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:12:51,713 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:12:52,021 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:12:53,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:53,704 INFO L93 Difference]: Finished difference Result 2630 states and 3451 transitions. [2020-09-24 19:12:53,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 19:12:53,705 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 286 [2020-09-24 19:12:53,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:53,719 INFO L225 Difference]: With dead ends: 2630 [2020-09-24 19:12:53,719 INFO L226 Difference]: Without dead ends: 1619 [2020-09-24 19:12:53,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 19:12:53,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2020-09-24 19:12:53,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1153. [2020-09-24 19:12:53,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1153 states. [2020-09-24 19:12:53,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1352 transitions. [2020-09-24 19:12:53,967 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1352 transitions. Word has length 286 [2020-09-24 19:12:53,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:53,968 INFO L479 AbstractCegarLoop]: Abstraction has 1153 states and 1352 transitions. [2020-09-24 19:12:53,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 19:12:53,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1352 transitions. [2020-09-24 19:12:53,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-09-24 19:12:53,976 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:53,976 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:53,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:12:53,976 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:53,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:53,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1093000314, now seen corresponding path program 1 times [2020-09-24 19:12:53,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:53,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793725118] [2020-09-24 19:12:53,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:54,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:54,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:54,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:55,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:55,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 351 [2020-09-24 19:12:55,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:12:55,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1028 [2020-09-24 19:12:55,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:55,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:12:55,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-24 19:12:55,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:12:55,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:55,358 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:55,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:55,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:55,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:55,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:55,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:55,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 19:12:55,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:55,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:55,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:55,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:55,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:55,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:55,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:55,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:55,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:55,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:55,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:55,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:55,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:55,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:55,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:55,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:55,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:55,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:55,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:55,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:55,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:55,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:55,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:55,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:55,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:55,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:55,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:55,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:55,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:55,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:55,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:55,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:55,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:55,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:55,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:55,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:55,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:55,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:55,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:55,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:55,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:55,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:55,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:55,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:55,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:55,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:55,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:55,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:55,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:55,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:12:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:55,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:55,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:55,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:12:55,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:55,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:55,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:55,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:55,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:55,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:55,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:55,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:12:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:55,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:55,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:55,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-24 19:12:55,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:55,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-24 19:12:55,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:55,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:12:55,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 19:12:55,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:12:55,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:55,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:55,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:55,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:55,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:55,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:12:55,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:55,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 19:12:55,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:55,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:12:55,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 19:12:55,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:12:55,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:55,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:55,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:55,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:55,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:12:55,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:55,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 19:12:55,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:55,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:12:55,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:12:55,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:12:55,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:55,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:55,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:55,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:55,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:12:55,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:55,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 19:12:55,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:12:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:12:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:12:55,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:55,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:12:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:55,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:55,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:55,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:12:55,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:55,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:55,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:55,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:12:55,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:55,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:12:55,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:56,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:12:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:12:56,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:12:56,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:12:56,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:56,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:12:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:12:56,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:56,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:56,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:12:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:56,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:56,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:56,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:12:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:12:56,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:56,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:56,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-24 19:12:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:12:56,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:12:56,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 19:12:56,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:56,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:56,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:56,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:56,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 19:12:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:12:56,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:56,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:12:56,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:56,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-09-24 19:12:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:12:56,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:56,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:12:56,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:56,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-24 19:12:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 19:12:56,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:12:56,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 19:12:56,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:56,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:12:56,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:56,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:56,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:12:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:56,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:56,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:56,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 19:12:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:12:56,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:56,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:56,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:56,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-09-24 19:12:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:56,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:56,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:56,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:56,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2020-09-24 19:12:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:56,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:56,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:56,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:56,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:56,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:56,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:56,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:56,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:56,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:56,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:56,295 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-24 19:12:56,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [793725118] [2020-09-24 19:12:56,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:12:56,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 19:12:56,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800533532] [2020-09-24 19:12:56,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:12:56,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:56,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:12:56,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:12:56,301 INFO L87 Difference]: Start difference. First operand 1153 states and 1352 transitions. Second operand 11 states. [2020-09-24 19:12:57,645 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:12:57,925 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 191