/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 --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_spec5_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:17:56,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:17:56,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:17:56,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:17:56,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:17:56,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:17:56,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:17:56,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:17:56,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:17:56,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:17:56,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:17:56,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:17:56,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:17:56,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:17:56,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:17:56,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:17:56,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:17:56,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:17:56,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:17:56,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:17:56,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:17:56,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:17:56,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:17:56,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:17:56,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:17:56,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:17:56,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:17:56,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:17:56,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:17:56,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:17:56,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:17:56,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:17:56,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:17:56,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:17:56,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:17:56,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:17:56,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:17:56,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:17:56,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:17:56,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:17:56,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:17:56,786 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 [2020-09-21 12:17:56,813 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:17:56,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:17:56,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:17:56,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:17:56,815 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:17:56,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:17:56,816 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:17:56,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:17:56,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:17:56,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:17:56,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:17:56,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:17:56,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:17:56,817 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:17:56,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:17:56,817 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:17:56,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:17:56,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:17:56,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:17:56,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:17:56,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:17:56,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:17:56,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:17:56,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:17:56,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:17:56,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:17:56,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:17:56,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:17:56,822 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:17:56,822 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.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; [2020-09-21 12:17:57,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:17:57,285 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:17:57,291 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:17:57,293 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:17:57,295 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:17:57,297 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product40.cil.c [2020-09-21 12:17:57,378 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c574801ba/2dd591dc812c47f09910949725fe404c/FLAGa1b3cdc08 [2020-09-21 12:17:57,994 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:17:57,995 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product40.cil.c [2020-09-21 12:17:58,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c574801ba/2dd591dc812c47f09910949725fe404c/FLAGa1b3cdc08 [2020-09-21 12:17:58,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c574801ba/2dd591dc812c47f09910949725fe404c [2020-09-21 12:17:58,295 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:17:58,301 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:17:58,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:17:58,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:17:58,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:17:58,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:17:58" (1/1) ... [2020-09-21 12:17:58,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e6ef35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:58, skipping insertion in model container [2020-09-21 12:17:58,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:17:58" (1/1) ... [2020-09-21 12:17:58,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:17:58,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:17:58,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:17:58,780 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:17:58,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:17:59,034 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:17:59,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:59 WrapperNode [2020-09-21 12:17:59,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:17:59,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:17:59,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:17:59,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:17:59,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:59" (1/1) ... [2020-09-21 12:17:59,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:59" (1/1) ... [2020-09-21 12:17:59,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:59" (1/1) ... [2020-09-21 12:17:59,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:59" (1/1) ... [2020-09-21 12:17:59,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:59" (1/1) ... [2020-09-21 12:17:59,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:59" (1/1) ... [2020-09-21 12:17:59,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:59" (1/1) ... [2020-09-21 12:17:59,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:17:59,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:17:59,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:17:59,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:17:59,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:59" (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 [2020-09-21 12:17:59,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:17:59,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:17:59,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 12:17:59,238 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 12:17:59,238 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 12:17:59,238 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 12:17:59,238 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 12:17:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 12:17:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 12:17:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 12:17:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 12:17:59,239 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 12:17:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 12:17:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 12:17:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 12:17:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 12:17:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 12:17:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 12:17:59,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 12:17:59,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 12:17:59,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 12:17:59,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 12:17:59,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-21 12:17:59,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-21 12:17:59,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-21 12:17:59,242 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 12:17:59,242 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 12:17:59,242 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 12:17:59,243 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 12:17:59,243 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:17:59,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 12:17:59,243 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 12:17:59,243 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 12:17:59,243 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 12:17:59,244 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 12:17:59,244 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 12:17:59,244 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 12:17:59,244 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 12:17:59,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 12:17:59,244 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 12:17:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 12:17:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 12:17:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:17:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:17:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 12:17:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 12:17:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 12:17:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 12:17:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 12:17:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 12:17:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 12:17:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 12:17:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 12:17:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 12:17:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 12:17:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 12:17:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-21 12:17:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-21 12:17:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 12:17:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 12:17:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 12:17:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 12:17:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 12:17:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:17:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 12:17:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 12:17:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 12:17:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 12:17:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 12:17:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:17:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:17:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 12:17:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:17:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:17:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:17:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:17:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 12:17:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:17:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 12:17:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 12:17:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:17:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 12:17:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 12:17:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 12:17:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 12:17:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 12:17:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-21 12:17:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 12:17:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 12:17:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 12:17:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 12:17:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 12:17:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 12:17:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:17:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 12:17:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:17:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:17:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:18:00,421 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:18:00,422 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:18:00,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:18:00 BoogieIcfgContainer [2020-09-21 12:18:00,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:18:00,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:18:00,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:18:00,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:18:00,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:17:58" (1/3) ... [2020-09-21 12:18:00,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cee224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:18:00, skipping insertion in model container [2020-09-21 12:18:00,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:17:59" (2/3) ... [2020-09-21 12:18:00,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cee224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:18:00, skipping insertion in model container [2020-09-21 12:18:00,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:18:00" (3/3) ... [2020-09-21 12:18:00,438 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product40.cil.c [2020-09-21 12:18:00,450 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:18:00,460 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:18:00,479 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:18:00,508 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:18:00,508 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:18:00,508 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:18:00,508 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:18:00,509 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:18:00,509 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:18:00,509 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:18:00,509 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:18:00,537 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states. [2020-09-21 12:18:00,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-21 12:18:00,550 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:00,552 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:18:00,552 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:00,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:00,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1231866733, now seen corresponding path program 1 times [2020-09-21 12:18:00,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:00,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634262517] [2020-09-21 12:18:00,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:01,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:01,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:01,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:01,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 12:18:01,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:18:01,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1022 [2020-09-21 12:18:01,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:01,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:01,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-21 12:18:01,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:01,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 12:18:02,313 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:02,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:02,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:02,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:02,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:02,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:02,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-21 12:18:02,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:02,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:02,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:02,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:02,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:02,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:02,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:02,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:02,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:02,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:02,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:02,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:02,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:02,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:02,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:02,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:02,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:02,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:02,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:02,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:02,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:02,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:02,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:02,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:02,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:02,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:02,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:02,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:02,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:02,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:02,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:02,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:02,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:18:02,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:02,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:02,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:02,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:02,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:02,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:02,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:02,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:02,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:02,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:02,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:02,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:02,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:02,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:02,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:02,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:02,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:02,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:02,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:02,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:02,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:02,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:02,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:02,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:02,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:02,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:02,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:02,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:18:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:02,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:02,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:02,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:02,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:02,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:18:02,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:02,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:02,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:18:02,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:02,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:02,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:02,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:02,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:02,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:02,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:02,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:02,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:02,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:02,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:02,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:02,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:02,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:18:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:02,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:02,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:02,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:02,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:02,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:02,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:02,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:02,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:02,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:02,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:02,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 12:18:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:02,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:02,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:02,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:02,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:02,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:02,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:02,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:02,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:02,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:02,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:02,598 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:18:02,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634262517] [2020-09-21 12:18:02,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:02,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:18:02,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795182507] [2020-09-21 12:18:02,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:18:02,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:02,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:18:02,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:18:02,641 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 4 states. [2020-09-21 12:18:03,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:03,859 INFO L93 Difference]: Finished difference Result 324 states and 416 transitions. [2020-09-21 12:18:03,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:18:03,864 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-09-21 12:18:03,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:03,890 INFO L225 Difference]: With dead ends: 324 [2020-09-21 12:18:03,890 INFO L226 Difference]: Without dead ends: 179 [2020-09-21 12:18:03,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:18:03,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-09-21 12:18:03,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 146. [2020-09-21 12:18:03,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-21 12:18:03,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 171 transitions. [2020-09-21 12:18:03,996 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 171 transitions. Word has length 59 [2020-09-21 12:18:03,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:03,997 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 171 transitions. [2020-09-21 12:18:03,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:18:03,997 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 171 transitions. [2020-09-21 12:18:04,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-21 12:18:04,001 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:04,002 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:18:04,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:18:04,002 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:04,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:04,003 INFO L82 PathProgramCache]: Analyzing trace with hash 735941424, now seen corresponding path program 1 times [2020-09-21 12:18:04,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:04,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1998056597] [2020-09-21 12:18:04,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:04,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:04,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:05,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:05,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-21 12:18:05,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:18:05,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-09-21 12:18:05,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:05,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:05,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-21 12:18:05,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:18:05,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:05,340 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:05,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:05,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:05,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:05,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:05,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:05,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-21 12:18:05,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:05,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:05,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:05,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:05,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:05,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:05,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:05,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:05,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:05,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:05,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:05,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:05,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:05,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:05,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:05,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:05,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:05,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:05,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:05,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:05,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:05,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:05,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:05,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:05,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:05,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:05,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:05,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:05,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:05,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:05,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:05,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:05,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:05,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:05,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:05,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:05,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:05,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:05,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:05,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:05,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:05,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:05,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:05,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:05,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:05,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:05,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:05,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:05,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:05,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 12:18:05,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:05,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:05,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:05,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:05,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:05,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:05,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:05,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:05,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:05,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:05,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:18:05,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:18:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:05,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:05,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:05,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:05,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:05,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:05,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:05,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:05,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:18:05,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:05,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:18:05,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:05,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:05,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:05,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:05,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:05,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:05,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:05,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:05,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:05,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 12:18:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:05,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:05,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:05,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:05,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:05,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:18:05,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:05,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:05,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:05,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:05,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:05,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 12:18:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:05,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:05,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:05,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:05,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:05,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:05,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:05,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:05,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:05,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:05,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:05,553 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:18:05,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1998056597] [2020-09-21 12:18:05,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:05,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:18:05,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308282614] [2020-09-21 12:18:05,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:18:05,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:05,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:18:05,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:18:05,561 INFO L87 Difference]: Start difference. First operand 146 states and 171 transitions. Second operand 5 states. [2020-09-21 12:18:06,091 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:07,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:07,130 INFO L93 Difference]: Finished difference Result 259 states and 316 transitions. [2020-09-21 12:18:07,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:18:07,131 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-09-21 12:18:07,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:07,134 INFO L225 Difference]: With dead ends: 259 [2020-09-21 12:18:07,135 INFO L226 Difference]: Without dead ends: 169 [2020-09-21 12:18:07,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:18:07,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-09-21 12:18:07,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 137. [2020-09-21 12:18:07,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-09-21 12:18:07,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 159 transitions. [2020-09-21 12:18:07,176 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 159 transitions. Word has length 60 [2020-09-21 12:18:07,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:07,177 INFO L479 AbstractCegarLoop]: Abstraction has 137 states and 159 transitions. [2020-09-21 12:18:07,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:18:07,177 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 159 transitions. [2020-09-21 12:18:07,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 12:18:07,179 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:07,179 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:18:07,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:18:07,180 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:07,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:07,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1019781836, now seen corresponding path program 1 times [2020-09-21 12:18:07,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:07,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563751071] [2020-09-21 12:18:07,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:07,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:07,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:08,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:08,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 12:18:08,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:18:08,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-09-21 12:18:08,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:08,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:18:08,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-21 12:18:08,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 12:18:08,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:08,656 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:08,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:08,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:08,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:08,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:08,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:08,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-21 12:18:08,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:08,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:08,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:08,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:08,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:08,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:08,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:08,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:08,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:08,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:08,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:08,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:08,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:08,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:08,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:08,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:08,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:08,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:08,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:08,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:08,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:08,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:08,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:08,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:08,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:08,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:08,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:08,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:08,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:08,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:08,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:08,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:08,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:08,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:08,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:08,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:08,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:08,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:08,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:08,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:08,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:08,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:08,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:08,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:08,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:08,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:08,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:08,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:08,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:08,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:08,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:08,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:08,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:08,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:08,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:08,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:08,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:08,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:08,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:08,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:18:08,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:18:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:08,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:08,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:08,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:08,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:08,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:08,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:08,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:08,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:08,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:08,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:08,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:08,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:08,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:08,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:08,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:08,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:08,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:08,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:08,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:08,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:08,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:08,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 12:18:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:08,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:08,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:08,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:08,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:08,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:08,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:08,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:08,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:08,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:08,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:08,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 12:18:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:08,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:08,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:08,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:08,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:08,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:18:08,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:08,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:08,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:08,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:08,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:08,878 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:18:08,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563751071] [2020-09-21 12:18:08,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:08,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:18:08,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107220331] [2020-09-21 12:18:08,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:18:08,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:08,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:18:08,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:18:08,884 INFO L87 Difference]: Start difference. First operand 137 states and 159 transitions. Second operand 8 states. [2020-09-21 12:18:09,318 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:18:10,447 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-09-21 12:18:11,388 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-21 12:18:11,734 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:18:12,351 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:18:12,667 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:18:13,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:13,398 INFO L93 Difference]: Finished difference Result 354 states and 452 transitions. [2020-09-21 12:18:13,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 12:18:13,399 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-09-21 12:18:13,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:13,403 INFO L225 Difference]: With dead ends: 354 [2020-09-21 12:18:13,403 INFO L226 Difference]: Without dead ends: 245 [2020-09-21 12:18:13,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-21 12:18:13,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-09-21 12:18:13,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 211. [2020-09-21 12:18:13,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-09-21 12:18:13,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 249 transitions. [2020-09-21 12:18:13,458 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 249 transitions. Word has length 65 [2020-09-21 12:18:13,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:13,459 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 249 transitions. [2020-09-21 12:18:13,459 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:18:13,459 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 249 transitions. [2020-09-21 12:18:13,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-21 12:18:13,463 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:13,463 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:18:13,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:18:13,464 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:13,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:13,464 INFO L82 PathProgramCache]: Analyzing trace with hash -573764694, now seen corresponding path program 1 times [2020-09-21 12:18:13,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:13,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237498937] [2020-09-21 12:18:13,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:13,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:13,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:14,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:14,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:14,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 12:18:14,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:18:14,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1033 [2020-09-21 12:18:14,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:14,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:14,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-09-21 12:18:14,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:14,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:14,816 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:14,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:14,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:14,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:14,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:14,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:14,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 12:18:14,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:14,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:14,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:14,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:14,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:14,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:14,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:14,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:14,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:14,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:14,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:14,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:14,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:14,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:14,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:14,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:14,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:14,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:14,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:14,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:14,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:14,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:14,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:14,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:14,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:14,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:14,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:14,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:14,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:14,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:14,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:14,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:14,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:14,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:14,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:14,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:14,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:14,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:14,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:14,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:14,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:14,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:14,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:14,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:14,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:14,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:14,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:14,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:14,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:14,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:14,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:14,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:14,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:14,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:14,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:14,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:14,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:14,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:14,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:14,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:14,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:18:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:14,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:14,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:14,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:14,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:14,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:14,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:14,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:14,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:14,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:14,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:14,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:14,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:14,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:14,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:14,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:14,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:14,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:14,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:14,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:14,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:14,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:14,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 12:18:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:14,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:14,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:18:15,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:18:15,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-21 12:18:15,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:15,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:18:15,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:15,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:15,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:15,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:18:15,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:18:15,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-21 12:18:15,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:15,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:18:15,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:15,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:15,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:15,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:15,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:15,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:18:15,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:15,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 12:18:15,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:15,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:15,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:15,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:15,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:15,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:15,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:18:15,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:15,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:15,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:15,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:15,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:15,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:15,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:15,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:15,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:15,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:15,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:15,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 12:18:15,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:15,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:15,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:15,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:15,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:15,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:15,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:15,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:15,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-21 12:18:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:15,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:15,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:15,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:15,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:15,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:15,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:15,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:15,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:15,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:15,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:15,476 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:18:15,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237498937] [2020-09-21 12:18:15,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:15,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:18:15,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474939886] [2020-09-21 12:18:15,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:18:15,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:15,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:18:15,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:18:15,479 INFO L87 Difference]: Start difference. First operand 211 states and 249 transitions. Second operand 8 states. [2020-09-21 12:18:16,650 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:16,998 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:17,347 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:18:18,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:18,151 INFO L93 Difference]: Finished difference Result 450 states and 579 transitions. [2020-09-21 12:18:18,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:18:18,152 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2020-09-21 12:18:18,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:18,157 INFO L225 Difference]: With dead ends: 450 [2020-09-21 12:18:18,157 INFO L226 Difference]: Without dead ends: 267 [2020-09-21 12:18:18,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:18:18,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-09-21 12:18:18,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 216. [2020-09-21 12:18:18,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-09-21 12:18:18,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 254 transitions. [2020-09-21 12:18:18,226 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 254 transitions. Word has length 93 [2020-09-21 12:18:18,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:18,226 INFO L479 AbstractCegarLoop]: Abstraction has 216 states and 254 transitions. [2020-09-21 12:18:18,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:18:18,226 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 254 transitions. [2020-09-21 12:18:18,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-21 12:18:18,228 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:18,228 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:18:18,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:18:18,229 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:18,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:18,229 INFO L82 PathProgramCache]: Analyzing trace with hash 127835180, now seen corresponding path program 1 times [2020-09-21 12:18:18,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:18,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628789841] [2020-09-21 12:18:18,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:18,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 12:18:19,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-09-21 12:18:19,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:18:19,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:19,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 12:18:19,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:19,548 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:19,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:19,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-21 12:18:19,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:19,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:19,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:18:19,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:19,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:19,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:19,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:19,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:19,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:18:19,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:19,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:19,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:19,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:19,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:19,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:18:19,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:19,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:19,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:19,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:19,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:19,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:19,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:19,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:19,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:19,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:18:19,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:19,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:19,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:19,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:19,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:19,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:19,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:19,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:19,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:18:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:19,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:19,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:19,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:19,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:18:19,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:19,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:19,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:19,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:19,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:19,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:19,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:19,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 12:18:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:18:19,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 12:18:19,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:19,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:18:19,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 12:18:19,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:19,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:18:19,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 12:18:19,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:19,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:19,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:18:19,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:19,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:19,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:18:19,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:19,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:19,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:18:19,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:19,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:19,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:19,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:19,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:19,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:18:19,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:19,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:19,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:19,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:19,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:19,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:19,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:19,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 12:18:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:19,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:19,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:19,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:19,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:19,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:19,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-21 12:18:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:19,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:19,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:19,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:19,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:19,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:19,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:19,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:19,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:19,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:19,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:19,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:18:19,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [628789841] [2020-09-21 12:18:19,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:19,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:18:19,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639424551] [2020-09-21 12:18:19,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:18:19,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:19,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:18:19,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:18:19,981 INFO L87 Difference]: Start difference. First operand 216 states and 254 transitions. Second operand 7 states. [2020-09-21 12:18:20,357 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:18:20,999 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:18:23,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:23,804 INFO L93 Difference]: Finished difference Result 765 states and 1012 transitions. [2020-09-21 12:18:23,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 12:18:23,805 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2020-09-21 12:18:23,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:23,810 INFO L225 Difference]: With dead ends: 765 [2020-09-21 12:18:23,810 INFO L226 Difference]: Without dead ends: 577 [2020-09-21 12:18:23,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-21 12:18:23,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2020-09-21 12:18:23,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 507. [2020-09-21 12:18:23,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-09-21 12:18:23,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 619 transitions. [2020-09-21 12:18:23,901 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 619 transitions. Word has length 93 [2020-09-21 12:18:23,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:23,901 INFO L479 AbstractCegarLoop]: Abstraction has 507 states and 619 transitions. [2020-09-21 12:18:23,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:18:23,902 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 619 transitions. [2020-09-21 12:18:23,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-21 12:18:23,904 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:23,904 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:18:23,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:18:23,904 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:23,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:23,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1995721705, now seen corresponding path program 1 times [2020-09-21 12:18:23,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:23,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665066373] [2020-09-21 12:18:23,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:23,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:24,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:24,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 12:18:24,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:24,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 707 [2020-09-21 12:18:24,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:24,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:18:24,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-09-21 12:18:24,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:18:24,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:25,002 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:25,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:25,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 12:18:25,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:25,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:25,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:25,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:25,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:25,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:25,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:25,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:25,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:25,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:25,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:25,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:25,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:25,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:25,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:25,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:25,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:25,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:25,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:25,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:25,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:25,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:25,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:25,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:25,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:25,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:25,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:25,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:25,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:18:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:25,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:25,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:25,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:25,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:25,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:25,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:25,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:25,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:25,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:25,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 12:18:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:18:25,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-21 12:18:25,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:18:25,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 12:18:25,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:18:25,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:25,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:18:25,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 12:18:25,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:18:25,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 12:18:25,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:18:25,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:25,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:25,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 12:18:25,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:25,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:18:25,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:25,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:25,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:18:25,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:25,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:25,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:25,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:25,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:25,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:25,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:25,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:25,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:25,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:25,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 12:18:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:25,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:25,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:25,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:25,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:25,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-21 12:18:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:25,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:25,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:25,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:25,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:25,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:25,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:25,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:25,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:25,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:25,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:25,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:18:25,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665066373] [2020-09-21 12:18:25,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:25,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:18:25,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575032084] [2020-09-21 12:18:25,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:18:25,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:25,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:18:25,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:18:25,397 INFO L87 Difference]: Start difference. First operand 507 states and 619 transitions. Second operand 9 states. [2020-09-21 12:18:26,690 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:27,035 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:18:27,363 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:27,672 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:28,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:28,465 INFO L93 Difference]: Finished difference Result 1058 states and 1346 transitions. [2020-09-21 12:18:28,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:18:28,468 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-09-21 12:18:28,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:28,474 INFO L225 Difference]: With dead ends: 1058 [2020-09-21 12:18:28,474 INFO L226 Difference]: Without dead ends: 579 [2020-09-21 12:18:28,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 12:18:28,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2020-09-21 12:18:28,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 517. [2020-09-21 12:18:28,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2020-09-21 12:18:28,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 629 transitions. [2020-09-21 12:18:28,594 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 629 transitions. Word has length 93 [2020-09-21 12:18:28,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:28,594 INFO L479 AbstractCegarLoop]: Abstraction has 517 states and 629 transitions. [2020-09-21 12:18:28,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:18:28,595 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 629 transitions. [2020-09-21 12:18:28,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-21 12:18:28,598 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:28,599 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:18:28,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:18:28,599 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:28,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:28,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1597645717, now seen corresponding path program 1 times [2020-09-21 12:18:28,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:28,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19923860] [2020-09-21 12:18:28,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:28,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:29,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:29,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 12:18:29,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:29,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 499 [2020-09-21 12:18:29,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:29,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:29,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-09-21 12:18:29,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:29,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:29,477 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:29,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:29,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:29,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:29,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:29,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:29,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 12:18:29,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:29,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:29,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:29,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:29,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:29,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:29,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:29,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:29,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:29,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:29,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:29,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:29,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:29,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:29,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:29,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:29,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:29,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:29,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:29,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:29,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:29,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:29,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:29,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:29,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:29,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:29,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:29,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:29,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:29,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:29,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:29,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:29,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:29,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:29,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:29,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:29,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:29,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:29,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:29,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:29,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:29,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:29,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:29,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:29,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:29,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:29,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:29,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:29,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:29,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:29,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:29,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:29,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:29,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:29,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:29,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:29,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:29,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:29,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:18:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:29,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:29,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:29,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:29,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:29,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:29,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:29,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:29,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:29,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:29,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:29,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:29,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:29,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:29,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:29,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:29,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:29,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:29,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:29,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:29,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:29,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:29,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 12:18:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:29,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:29,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:29,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:18:29,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:29,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 12:18:29,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:29,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:29,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:18:29,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:29,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:29,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:29,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:29,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:29,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:18:29,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:29,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 12:18:29,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:29,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:29,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:18:29,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:29,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:29,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:29,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:29,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:29,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:29,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:29,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:18:29,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:29,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:29,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 12:18:29,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:29,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:29,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:29,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:29,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:29,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:29,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:29,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:18:29,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:29,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:18:29,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:29,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:29,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:29,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:29,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:29,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:29,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:29,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:29,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:29,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:29,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:29,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:29,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:29,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:18:29,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 12:18:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:29,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:29,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:29,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:29,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:29,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:29,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:29,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:29,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:29,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:29,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:29,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-21 12:18:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:29,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:29,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:29,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:29,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:29,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:29,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:29,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:29,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:29,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:29,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:29,844 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:18:29,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19923860] [2020-09-21 12:18:29,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:29,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:18:29,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035842993] [2020-09-21 12:18:29,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:18:29,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:29,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:18:29,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:18:29,853 INFO L87 Difference]: Start difference. First operand 517 states and 629 transitions. Second operand 8 states. [2020-09-21 12:18:31,006 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:31,358 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:31,666 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:32,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:32,498 INFO L93 Difference]: Finished difference Result 969 states and 1229 transitions. [2020-09-21 12:18:32,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:18:32,499 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2020-09-21 12:18:32,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:32,503 INFO L225 Difference]: With dead ends: 969 [2020-09-21 12:18:32,503 INFO L226 Difference]: Without dead ends: 480 [2020-09-21 12:18:32,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:18:32,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-09-21 12:18:32,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 432. [2020-09-21 12:18:32,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2020-09-21 12:18:32,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 516 transitions. [2020-09-21 12:18:32,587 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 516 transitions. Word has length 93 [2020-09-21 12:18:32,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:32,587 INFO L479 AbstractCegarLoop]: Abstraction has 432 states and 516 transitions. [2020-09-21 12:18:32,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:18:32,588 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 516 transitions. [2020-09-21 12:18:32,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-09-21 12:18:32,591 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:32,591 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 12:18:32,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:18:32,592 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:32,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:32,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1394866514, now seen corresponding path program 1 times [2020-09-21 12:18:32,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:32,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069680294] [2020-09-21 12:18:32,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:32,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:33,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:33,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:33,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-21 12:18:33,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:18:33,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1190 [2020-09-21 12:18:33,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:33,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:18:33,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-21 12:18:33,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-21 12:18:33,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:34,201 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:34,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:34,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:34,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:34,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:34,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:34,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 12:18:34,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:34,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:34,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:34,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:34,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:34,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:34,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:34,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:34,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:34,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:34,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:34,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:34,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:34,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:34,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:34,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:34,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:34,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:34,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:34,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:34,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:34,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:34,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:34,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:34,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:34,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:34,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:34,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:34,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:34,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:34,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:34,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:34,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:34,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:34,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:34,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:34,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:34,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:34,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:34,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:34,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:34,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:34,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:34,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:34,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:34,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:34,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:34,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:34,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:34,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:34,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:34,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:34,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:34,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:34,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:34,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:34,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:34,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:34,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:18:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:34,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:34,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:34,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:34,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:34,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:34,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:18:34,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:34,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 12:18:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:34,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:34,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:34,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:34,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:34,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:34,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:34,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:34,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:34,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:18:34,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:34,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:34,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:34,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:34,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:34,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:34,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:34,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:34,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:34,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:34,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:34,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:34,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-09-21 12:18:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:34,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:34,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:34,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:18:34,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:34,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 12:18:34,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:34,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:18:34,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:34,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 12:18:34,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:34,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:34,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:34,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:34,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:18:34,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:34,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 12:18:34,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:34,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:34,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:34,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:18:34,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:34,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:34,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:34,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:34,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:34,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:34,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:18:34,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:34,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:34,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:34,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:18:34,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:34,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:34,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:34,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:34,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:34,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:34,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:34,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:34,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:34,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:34,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:18:34,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:34,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:34,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:34,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:34,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:34,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:34,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:34,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:34,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:34,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:34,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:34,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:34,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-09-21 12:18:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:34,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:34,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:34,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:34,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:34,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:18:34,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:34,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:18:34,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:34,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:34,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:34,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-09-21 12:18:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:34,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:34,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:34,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:34,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:34,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:34,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:34,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:34,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:34,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:34,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:34,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:18:34,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069680294] [2020-09-21 12:18:34,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:18:34,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 12:18:34,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661414517] [2020-09-21 12:18:34,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 12:18:34,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:34,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 12:18:34,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:18:34,582 INFO L87 Difference]: Start difference. First operand 432 states and 516 transitions. Second operand 12 states. [2020-09-21 12:18:35,084 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:18:36,140 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:18:36,531 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:18:37,004 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:38,071 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:18:38,452 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:18:38,779 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:18:40,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:40,313 INFO L93 Difference]: Finished difference Result 884 states and 1132 transitions. [2020-09-21 12:18:40,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-21 12:18:40,315 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2020-09-21 12:18:40,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:40,320 INFO L225 Difference]: With dead ends: 884 [2020-09-21 12:18:40,320 INFO L226 Difference]: Without dead ends: 559 [2020-09-21 12:18:40,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=253, Invalid=617, Unknown=0, NotChecked=0, Total=870 [2020-09-21 12:18:40,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-09-21 12:18:40,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 487. [2020-09-21 12:18:40,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2020-09-21 12:18:40,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 587 transitions. [2020-09-21 12:18:40,410 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 587 transitions. Word has length 97 [2020-09-21 12:18:40,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:40,412 INFO L479 AbstractCegarLoop]: Abstraction has 487 states and 587 transitions. [2020-09-21 12:18:40,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 12:18:40,412 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 587 transitions. [2020-09-21 12:18:40,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-21 12:18:40,415 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:40,415 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-21 12:18:40,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:18:40,416 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:40,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:40,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1947206631, now seen corresponding path program 1 times [2020-09-21 12:18:40,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:40,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502509641] [2020-09-21 12:18:40,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:40,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:40,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-21 12:18:41,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:18:41,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1121 [2020-09-21 12:18:41,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-21 12:18:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 12:18:41,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:41,882 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:41,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:41,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 12:18:41,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:41,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:41,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:41,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:41,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:41,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:41,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:41,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:41,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:41,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:41,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:41,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:41,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:41,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:41,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:41,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:41,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:41,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:41,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:41,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:41,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:41,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:41,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:41,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:41,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:41,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:41,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:41,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:41,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:18:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:42,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:42,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:42,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:42,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 12:18:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 12:18:42,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 12:18:42,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:42,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 12:18:42,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:42,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:18:42,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:42,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:42,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:42,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:42,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:42,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:18:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:18:42,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 12:18:42,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:42,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 12:18:42,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:18:42,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:18:42,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:42,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:42,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:42,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:42,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:42,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:42,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:42,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:42,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:42,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:42,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:42,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:42,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:42,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:42,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:42,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:18:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:18:42,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:18:42,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:42,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:18:42,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:42,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:42,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:42,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:42,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-21 12:18:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:42,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:42,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:42,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:18:42,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:42,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:42,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:42,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:42,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-09-21 12:18:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:42,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:42,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:42,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:42,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:42,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-21 12:18:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:42,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:42,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:42,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:42,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:42,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-21 12:18:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:42,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:42,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:42,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:42,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:42,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:42,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:42,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:42,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:42,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:42,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:42,317 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-21 12:18:42,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502509641] [2020-09-21 12:18:42,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:18:42,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 12:18:42,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472671411] [2020-09-21 12:18:42,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:18:42,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:42,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:18:42,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:18:42,320 INFO L87 Difference]: Start difference. First operand 487 states and 587 transitions. Second operand 8 states. [2020-09-21 12:18:42,664 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:18:44,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:18:44,336 INFO L93 Difference]: Finished difference Result 1179 states and 1489 transitions. [2020-09-21 12:18:44,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 12:18:44,338 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 133 [2020-09-21 12:18:44,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:18:44,345 INFO L225 Difference]: With dead ends: 1179 [2020-09-21 12:18:44,345 INFO L226 Difference]: Without dead ends: 720 [2020-09-21 12:18:44,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-09-21 12:18:44,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2020-09-21 12:18:44,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 618. [2020-09-21 12:18:44,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2020-09-21 12:18:44,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 747 transitions. [2020-09-21 12:18:44,590 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 747 transitions. Word has length 133 [2020-09-21 12:18:44,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:18:44,591 INFO L479 AbstractCegarLoop]: Abstraction has 618 states and 747 transitions. [2020-09-21 12:18:44,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:18:44,591 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 747 transitions. [2020-09-21 12:18:44,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-21 12:18:44,598 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:18:44,598 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:18:44,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:18:44,599 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:18:44,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:18:44,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1294451086, now seen corresponding path program 1 times [2020-09-21 12:18:44,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:18:44,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [26769039] [2020-09-21 12:18:44,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:18:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:44,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:44,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:45,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:45,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:45,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:45,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:45,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-09-21 12:18:45,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:18:45,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:18:45,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:45,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-21 12:18:45,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-21 12:18:45,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:45,978 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:18:45,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:45,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:46,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-21 12:18:46,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:18:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:46,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:46,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:18:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:46,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:46,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:18:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:46,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:46,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:18:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:46,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:46,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:18:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:46,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:46,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:46,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:18:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:46,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:46,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 12:18:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:46,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:46,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:46,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:18:46,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:46,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 12:18:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 12:18:46,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:18:46,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-21 12:18:46,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:46,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 12:18:46,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:46,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:46,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:46,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:18:46,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:46,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:18:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:18:46,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:18:46,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:18:46,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:18:46,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:18:46,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:18:46,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:46,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:18:46,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:46,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:18:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:46,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:46,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:18:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:18:46,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:18:46,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:46,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:46,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-21 12:18:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:46,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:18:46,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:46,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:18:46,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:18:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:46,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:46,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-21 12:18:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:46,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:18:46,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:18:46,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:18:46,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-21 12:18:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-21 12:18:46,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 12:18:46,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-21 12:18:46,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:18:46,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:46,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:18:46,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:18:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:46,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:46,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 12:18:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:18:46,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:18:46,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:18:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:18:46,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:46,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:18:46,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-21 12:18:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:46,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:18:46,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:46,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-21 12:18:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:18:46,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:18:46,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:18:46,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:18:46,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:18:46,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:18:46,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:18:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:18:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:18:46,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:18:46,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:18:46,600 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-21 12:18:46,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [26769039] [2020-09-21 12:18:46,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:18:46,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 12:18:46,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767220739] [2020-09-21 12:18:46,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:18:46,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:18:46,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:18:46,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:18:46,603 INFO L87 Difference]: Start difference. First operand 618 states and 747 transitions. Second operand 9 states. [2020-09-21 12:18:47,606 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189