/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:06:58,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:06:58,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:06:58,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:06:58,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:06:58,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:06:58,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:06:58,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:06:58,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:06:58,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:06:58,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:06:58,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:06:58,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:06:58,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:06:58,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:06:58,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:06:58,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:06:58,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:06:58,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:06:58,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:06:58,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:06:58,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:06:58,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:06:58,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:06:58,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:06:58,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:06:58,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:06:58,950 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:06:58,951 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:06:58,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:06:58,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:06:58,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:06:58,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:06:58,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:06:58,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:06:58,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:06:58,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:06:58,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:06:58,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:06:58,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:06:58,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:06:58,968 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:06:59,002 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:06:59,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:06:59,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:06:59,004 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:06:59,004 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:06:59,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:06:59,005 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:06:59,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:06:59,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:06:59,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:06:59,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:06:59,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:06:59,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:06:59,006 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:06:59,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:06:59,006 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:06:59,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:06:59,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:06:59,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:06:59,007 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:06:59,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:06:59,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:06:59,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:06:59,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:06:59,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:06:59,009 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:06:59,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:06:59,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:06:59,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:06:59,009 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:06:59,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:06:59,502 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:06:59,508 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:06:59,510 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:06:59,511 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:06:59,512 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2020-09-24 19:06:59,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5de836b3c/b317ee3de3b0439188f4906b81b154cc/FLAG142808390 [2020-09-24 19:07:00,256 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:07:00,258 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2020-09-24 19:07:00,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5de836b3c/b317ee3de3b0439188f4906b81b154cc/FLAG142808390 [2020-09-24 19:07:00,534 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5de836b3c/b317ee3de3b0439188f4906b81b154cc [2020-09-24 19:07:00,548 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:07:00,554 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:07:00,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:07:00,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:07:00,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:07:00,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:07:00" (1/1) ... [2020-09-24 19:07:00,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47743781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:00, skipping insertion in model container [2020-09-24 19:07:00,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:07:00" (1/1) ... [2020-09-24 19:07:00,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:07:00,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:07:01,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:07:01,145 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:07:01,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:07:01,311 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:07:01,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:01 WrapperNode [2020-09-24 19:07:01,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:07:01,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:07:01,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:07:01,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:07:01,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:01" (1/1) ... [2020-09-24 19:07:01,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:01" (1/1) ... [2020-09-24 19:07:01,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:01" (1/1) ... [2020-09-24 19:07:01,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:01" (1/1) ... [2020-09-24 19:07:01,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:01" (1/1) ... [2020-09-24 19:07:01,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:01" (1/1) ... [2020-09-24 19:07:01,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:01" (1/1) ... [2020-09-24 19:07:01,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:07:01,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:07:01,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:07:01,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:07:01,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:07:01,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:07:01,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:07:01,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:07:01,507 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:07:01,507 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:07:01,507 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:07:01,507 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:07:01,507 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:07:01,508 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:07:01,508 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:07:01,508 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:07:01,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:07:01,508 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:07:01,509 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:07:01,509 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:07:01,509 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 19:07:01,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 19:07:01,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 19:07:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:07:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:07:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:07:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:07:01,511 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:07:01,511 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:07:01,511 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:07:01,511 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:07:01,511 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:07:01,512 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:07:01,512 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:07:01,512 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 19:07:01,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:07:01,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:07:01,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:07:01,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:07:01,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:07:01,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:07:01,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:07:01,513 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:07:01,513 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:07:01,514 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:07:01,514 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:07:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:07:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:07:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:07:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:07:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:07:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:07:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:07:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:07:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:07:01,515 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:07:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 19:07:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:07:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:07:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:07:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:07:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:07:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:07:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:07:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:07:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:07:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:07:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:07:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 19:07:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:07:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:07:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:07:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 19:07:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:07:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:07:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:07:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:07:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:07:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:07:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 19:07:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:07:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:07:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:07:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:07:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:07:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:07:01,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:07:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:07:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:07:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:07:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:07:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:07:01,521 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:07:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:07:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:07:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:07:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:07:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:07:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:07:01,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:07:01,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:07:02,708 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:07:02,709 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:07:02,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:07:02 BoogieIcfgContainer [2020-09-24 19:07:02,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:07:02,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:07:02,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:07:02,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:07:02,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:07:00" (1/3) ... [2020-09-24 19:07:02,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a50bc99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:07:02, skipping insertion in model container [2020-09-24 19:07:02,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:01" (2/3) ... [2020-09-24 19:07:02,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a50bc99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:07:02, skipping insertion in model container [2020-09-24 19:07:02,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:07:02" (3/3) ... [2020-09-24 19:07:02,725 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2020-09-24 19:07:02,737 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:07:02,749 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:07:02,772 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:07:02,808 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:07:02,808 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:07:02,808 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:07:02,808 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:07:02,809 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:07:02,809 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:07:02,809 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:07:02,809 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:07:02,841 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states. [2020-09-24 19:07:02,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 19:07:02,860 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:02,862 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:02,863 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:02,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:02,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1663481443, now seen corresponding path program 1 times [2020-09-24 19:07:02,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:02,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711453982] [2020-09-24 19:07:02,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:03,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:03,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:04,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:04,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:04,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 19:07:04,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:07:04,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1099 [2020-09-24 19:07:04,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:04,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:04,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 19:07:04,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:04,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:07:04,867 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:04,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:04,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:05,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:05,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:05,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:05,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-09-24 19:07:05,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:05,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:05,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:05,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:05,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:05,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:05,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:05,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:05,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:05,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:05,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:05,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:05,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:05,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:05,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:05,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:05,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:05,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:05,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:05,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:05,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:05,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:05,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:05,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:05,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:05,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:05,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:05,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:05,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:05,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:05,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:05,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:05,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:07:05,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:05,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:05,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:05,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:05,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:05,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:05,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:05,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:05,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:05,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:05,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:05,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:05,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:05,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:05,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:05,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:05,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:05,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:05,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:05,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:05,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:05,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:05,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:05,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:05,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:05,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:05,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:05,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:07:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:05,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:05,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:05,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:05,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:05,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:05,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:05,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:05,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:05,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:05,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:05,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 19:07:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:05,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:05,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:05,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:05,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:05,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:05,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:05,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:05,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:05,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:05,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:05,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:05,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711453982] [2020-09-24 19:07:05,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:05,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:07:05,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560511083] [2020-09-24 19:07:05,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:07:05,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:05,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:07:05,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:07:05,324 INFO L87 Difference]: Start difference. First operand 327 states. Second operand 4 states. [2020-09-24 19:07:06,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:06,714 INFO L93 Difference]: Finished difference Result 502 states and 591 transitions. [2020-09-24 19:07:06,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 19:07:06,717 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-24 19:07:06,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:06,754 INFO L225 Difference]: With dead ends: 502 [2020-09-24 19:07:06,758 INFO L226 Difference]: Without dead ends: 317 [2020-09-24 19:07:06,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:07:06,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-09-24 19:07:06,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 270. [2020-09-24 19:07:06,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-09-24 19:07:06,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 293 transitions. [2020-09-24 19:07:06,891 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 293 transitions. Word has length 148 [2020-09-24 19:07:06,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:06,892 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 293 transitions. [2020-09-24 19:07:06,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:07:06,893 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 293 transitions. [2020-09-24 19:07:06,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 19:07:06,898 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:06,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:06,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:07:06,899 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:06,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:06,899 INFO L82 PathProgramCache]: Analyzing trace with hash 195823383, now seen corresponding path program 1 times [2020-09-24 19:07:06,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:06,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765843801] [2020-09-24 19:07:06,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:07,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:07,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 19:07:08,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:07:08,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1044 [2020-09-24 19:07:08,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:08,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 19:07:08,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:07:08,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:08,324 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:08,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:08,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 19:07:08,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:08,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:08,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:08,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:08,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:08,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:08,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:08,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:08,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:08,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 19:07:08,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:08,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:08,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:08,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:08,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:08,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:08,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:08,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:08,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:08,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:08,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:08,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:08,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:08,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:08,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:08,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:08,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:08,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:08,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 19:07:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:08,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:08,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:08,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:08,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:08,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:07:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:08,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:08,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:08,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:08,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:08,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:08,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:08,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:08,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:08,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:08,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:08,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:08,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765843801] [2020-09-24 19:07:08,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:08,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:07:08,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237273736] [2020-09-24 19:07:08,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:07:08,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:08,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:07:08,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:07:08,643 INFO L87 Difference]: Start difference. First operand 270 states and 293 transitions. Second operand 5 states. [2020-09-24 19:07:09,328 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:10,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:10,357 INFO L93 Difference]: Finished difference Result 431 states and 486 transitions. [2020-09-24 19:07:10,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:07:10,359 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-24 19:07:10,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:10,363 INFO L225 Difference]: With dead ends: 431 [2020-09-24 19:07:10,363 INFO L226 Difference]: Without dead ends: 306 [2020-09-24 19:07:10,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:07:10,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-24 19:07:10,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 260. [2020-09-24 19:07:10,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-09-24 19:07:10,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 280 transitions. [2020-09-24 19:07:10,412 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 280 transitions. Word has length 149 [2020-09-24 19:07:10,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:10,413 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 280 transitions. [2020-09-24 19:07:10,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:07:10,413 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 280 transitions. [2020-09-24 19:07:10,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-24 19:07:10,415 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:10,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:10,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:07:10,416 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:10,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:10,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1404119703, now seen corresponding path program 1 times [2020-09-24 19:07:10,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:10,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420473365] [2020-09-24 19:07:10,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:10,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:10,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:11,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:11,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-24 19:07:11,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:11,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1018 [2020-09-24 19:07:11,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:11,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:11,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 19:07:11,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 19:07:11,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:11,777 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:11,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:11,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:12,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:12,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:12,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:12,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-24 19:07:12,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:12,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:12,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:12,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 19:07:12,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:12,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:12,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:12,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:12,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:12,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:12,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:12,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:12,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:12,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:12,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:12,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:12,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:12,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:12,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:12,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:12,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:12,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:12,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:12,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:12,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:12,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:12,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:12,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:12,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:12,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:12,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:12,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:12,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:07:12,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:12,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:12,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:12,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:12,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:12,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:12,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:12,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:12,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:12,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:12,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:12,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:12,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:12,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:12,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:12,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:12,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:12,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:12,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:12,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:12,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:12,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:12,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:12,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:12,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:12,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:07:12,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:12,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 19:07:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:12,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:12,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:12,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:12,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:12,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:12,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:12,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:12,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:12,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:12,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:12,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 19:07:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:12,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:12,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:12,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:12,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:12,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:12,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:12,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:12,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:12,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:12,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:12,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:12,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1420473365] [2020-09-24 19:07:12,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:12,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:07:12,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355942975] [2020-09-24 19:07:12,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:07:12,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:12,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:07:12,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:07:12,262 INFO L87 Difference]: Start difference. First operand 260 states and 280 transitions. Second operand 5 states. [2020-09-24 19:07:12,928 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:13,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:13,860 INFO L93 Difference]: Finished difference Result 451 states and 512 transitions. [2020-09-24 19:07:13,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:07:13,861 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2020-09-24 19:07:13,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:13,864 INFO L225 Difference]: With dead ends: 451 [2020-09-24 19:07:13,864 INFO L226 Difference]: Without dead ends: 306 [2020-09-24 19:07:13,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:07:13,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-24 19:07:13,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 260. [2020-09-24 19:07:13,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-09-24 19:07:13,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 279 transitions. [2020-09-24 19:07:13,919 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 279 transitions. Word has length 158 [2020-09-24 19:07:13,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:13,920 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 279 transitions. [2020-09-24 19:07:13,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:07:13,921 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 279 transitions. [2020-09-24 19:07:13,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 19:07:13,923 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:13,923 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:13,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:07:13,924 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:13,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:13,924 INFO L82 PathProgramCache]: Analyzing trace with hash 588701941, now seen corresponding path program 1 times [2020-09-24 19:07:13,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:13,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461788986] [2020-09-24 19:07:13,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:14,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:14,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:14,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-24 19:07:15,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:07:15,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1047 [2020-09-24 19:07:15,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:07:15,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-24 19:07:15,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:07:15,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,411 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:15,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:15,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-24 19:07:15,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:15,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:15,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:15,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:15,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:15,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:15,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:15,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:15,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:15,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:15,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:15,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:15,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:15,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:15,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:15,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:15,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:07:15,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:07:15,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:07:15,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:07:15,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 19:07:15,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:07:15,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:15,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:07:15,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:07:15,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:07:15,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:07:15,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:07:15,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:15,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:15,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:15,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:15,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:15,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:15,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:15,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:07:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:15,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:15,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:15,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:15,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 19:07:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:15,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:15,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:15,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:15,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:15,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:15,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:15,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:15,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:15,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:15,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:15,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:15,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461788986] [2020-09-24 19:07:15,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:15,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:07:15,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831020683] [2020-09-24 19:07:15,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:07:15,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:15,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:07:15,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:07:15,862 INFO L87 Difference]: Start difference. First operand 260 states and 279 transitions. Second operand 7 states. [2020-09-24 19:07:16,391 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:17,843 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:18,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:18,689 INFO L93 Difference]: Finished difference Result 590 states and 679 transitions. [2020-09-24 19:07:18,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:07:18,689 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-09-24 19:07:18,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:18,694 INFO L225 Difference]: With dead ends: 590 [2020-09-24 19:07:18,694 INFO L226 Difference]: Without dead ends: 445 [2020-09-24 19:07:18,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-09-24 19:07:18,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-09-24 19:07:18,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 374. [2020-09-24 19:07:18,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-09-24 19:07:18,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 404 transitions. [2020-09-24 19:07:18,744 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 404 transitions. Word has length 171 [2020-09-24 19:07:18,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:18,744 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 404 transitions. [2020-09-24 19:07:18,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:07:18,745 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 404 transitions. [2020-09-24 19:07:18,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 19:07:18,747 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:18,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:18,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:07:18,748 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:18,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:18,748 INFO L82 PathProgramCache]: Analyzing trace with hash 52230436, now seen corresponding path program 1 times [2020-09-24 19:07:18,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:18,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1483547271] [2020-09-24 19:07:18,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:18,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:19,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:19,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 19:07:19,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:19,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1042 [2020-09-24 19:07:19,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:19,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:07:19,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 19:07:19,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-09-24 19:07:19,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:20,234 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:20,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:20,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-09-24 19:07:20,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:20,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 19:07:20,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:20,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:20,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:20,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:20,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:20,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:20,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:20,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:20,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:20,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:20,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:20,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:20,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:07:20,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:20,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:20,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:20,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:20,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:20,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:20,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:20,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:20,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:20,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:20,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:20,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:07:20,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:20,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:07:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 19:07:20,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 19:07:20,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:20,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 19:07:20,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:20,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:07:20,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:07:20,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:20,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:20,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:20,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:20,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:07:20,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:20,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:20,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:20,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:20,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:20,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:20,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:20,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:20,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:20,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:20,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:20,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:20,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:20,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 19:07:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:20,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:07:20,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:20,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:20,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:20,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:20,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 19:07:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:20,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:20,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:20,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:20,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:20,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:20,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:20,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:20,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:20,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:20,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:20,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:20,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1483547271] [2020-09-24 19:07:20,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:20,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:07:20,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699357495] [2020-09-24 19:07:20,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:07:20,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:20,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:07:20,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:07:20,891 INFO L87 Difference]: Start difference. First operand 374 states and 404 transitions. Second operand 10 states. [2020-09-24 19:07:21,409 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:23,047 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:23,391 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:23,744 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:07:24,085 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 19:07:24,405 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:24,725 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:07:25,027 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:25,485 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:26,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:26,833 INFO L93 Difference]: Finished difference Result 956 states and 1111 transitions. [2020-09-24 19:07:26,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 19:07:26,835 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2020-09-24 19:07:26,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:26,839 INFO L225 Difference]: With dead ends: 956 [2020-09-24 19:07:26,840 INFO L226 Difference]: Without dead ends: 697 [2020-09-24 19:07:26,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 19:07:26,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-09-24 19:07:26,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 587. [2020-09-24 19:07:26,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-09-24 19:07:26,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 639 transitions. [2020-09-24 19:07:26,935 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 639 transitions. Word has length 195 [2020-09-24 19:07:26,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:26,936 INFO L479 AbstractCegarLoop]: Abstraction has 587 states and 639 transitions. [2020-09-24 19:07:26,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:07:26,936 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 639 transitions. [2020-09-24 19:07:26,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 19:07:26,939 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:26,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:26,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:07:26,940 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:26,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:26,941 INFO L82 PathProgramCache]: Analyzing trace with hash 223725440, now seen corresponding path program 1 times [2020-09-24 19:07:26,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:26,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1684673823] [2020-09-24 19:07:26,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:27,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:27,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:27,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:27,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-24 19:07:28,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:07:28,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1042 [2020-09-24 19:07:28,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:28,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-09-24 19:07:28,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 19:07:28,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,369 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:28,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:28,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 19:07:28,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:28,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:28,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:28,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:28,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:28,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:28,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:28,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:28,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:28,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:28,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:28,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:28,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:28,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:28,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:28,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:28,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:28,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:28,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:28,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:28,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:28,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:28,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:28,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:07:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:07:28,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:28,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:28,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:28,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:28,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 19:07:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 19:07:28,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:28,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-24 19:07:28,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:28,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:28,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:28,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:07:28,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 19:07:28,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:28,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:07:28,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:28,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:28,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:07:28,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:28,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 19:07:28,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:28,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:28,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:07:28,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:28,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:28,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:28,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:28,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:28,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:28,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:28,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:28,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 19:07:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:28,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:28,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:28,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:28,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:28,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 19:07:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:28,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:28,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:28,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:28,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:28,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:07:28,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:28,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:28,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:28,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:28,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1684673823] [2020-09-24 19:07:28,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:28,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:07:28,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490514539] [2020-09-24 19:07:28,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:07:28,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:28,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:07:28,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:07:28,923 INFO L87 Difference]: Start difference. First operand 587 states and 639 transitions. Second operand 11 states. [2020-09-24 19:07:29,623 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:31,255 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:31,510 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:07:31,774 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:32,008 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:32,344 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:32,693 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:07:33,027 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:07:33,373 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:34,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:34,519 INFO L93 Difference]: Finished difference Result 1230 states and 1415 transitions. [2020-09-24 19:07:34,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-24 19:07:34,519 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 200 [2020-09-24 19:07:34,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:34,525 INFO L225 Difference]: With dead ends: 1230 [2020-09-24 19:07:34,526 INFO L226 Difference]: Without dead ends: 758 [2020-09-24 19:07:34,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=270, Invalid=722, Unknown=0, NotChecked=0, Total=992 [2020-09-24 19:07:34,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2020-09-24 19:07:34,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 585. [2020-09-24 19:07:34,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-09-24 19:07:34,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 635 transitions. [2020-09-24 19:07:34,622 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 635 transitions. Word has length 200 [2020-09-24 19:07:34,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:34,623 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 635 transitions. [2020-09-24 19:07:34,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:07:34,623 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 635 transitions. [2020-09-24 19:07:34,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-24 19:07:34,626 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:34,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:34,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:07:34,627 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:34,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:34,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1175485565, now seen corresponding path program 1 times [2020-09-24 19:07:34,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:34,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606587458] [2020-09-24 19:07:34,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:34,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:35,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:35,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:35,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-24 19:07:35,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:35,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1032 [2020-09-24 19:07:35,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:35,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 191 [2020-09-24 19:07:35,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:07:35,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:35,987 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:35,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:36,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 19:07:36,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:36,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:36,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:36,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:36,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:36,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:36,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:36,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:36,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:36,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:36,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:36,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:36,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:36,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:36,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:36,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:36,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:36,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:36,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:36,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:36,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:36,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:36,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:36,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:36,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:36,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:36,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:36,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:36,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:36,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:36,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:36,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:36,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:07:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:07:36,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:36,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:36,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:36,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:36,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:36,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 19:07:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:07:36,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 19:07:36,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:36,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 19:07:36,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:07:36,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:36,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:07:36,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 19:07:36,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:36,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:07:36,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:07:36,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:36,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:36,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 19:07:36,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:07:36,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:36,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:36,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:07:36,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:36,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:36,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:36,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:36,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:36,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:36,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:36,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:07:36,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:36,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:36,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 19:07:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:36,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:36,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:36,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:36,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:36,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:36,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 19:07:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:36,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:36,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:36,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:36,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:36,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:36,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:36,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:36,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:36,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:36,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:36,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:36,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606587458] [2020-09-24 19:07:36,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:36,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:07:36,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702015884] [2020-09-24 19:07:36,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:07:36,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:36,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:07:36,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:07:36,582 INFO L87 Difference]: Start difference. First operand 585 states and 635 transitions. Second operand 11 states. [2020-09-24 19:07:37,865 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:38,163 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:07:38,482 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:07:38,800 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:39,128 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:07:39,440 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:40,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:40,803 INFO L93 Difference]: Finished difference Result 1238 states and 1429 transitions. [2020-09-24 19:07:40,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:07:40,804 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 201 [2020-09-24 19:07:40,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:40,808 INFO L225 Difference]: With dead ends: 1238 [2020-09-24 19:07:40,809 INFO L226 Difference]: Without dead ends: 768 [2020-09-24 19:07:40,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 19:07:40,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2020-09-24 19:07:40,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 601. [2020-09-24 19:07:40,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-09-24 19:07:40,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 651 transitions. [2020-09-24 19:07:40,895 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 651 transitions. Word has length 201 [2020-09-24 19:07:40,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:40,896 INFO L479 AbstractCegarLoop]: Abstraction has 601 states and 651 transitions. [2020-09-24 19:07:40,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:07:40,896 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 651 transitions. [2020-09-24 19:07:40,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-24 19:07:40,902 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:40,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:40,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:07:40,903 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:40,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:40,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1300689949, now seen corresponding path program 1 times [2020-09-24 19:07:40,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:40,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1954877721] [2020-09-24 19:07:40,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:41,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:41,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:41,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:41,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-24 19:07:41,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:41,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:07:41,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:41,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:41,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-09-24 19:07:41,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:41,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:42,291 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:42,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:42,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:42,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:42,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:42,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:42,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:42,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 19:07:42,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:42,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:42,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:42,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:42,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:42,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:42,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:42,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:42,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:42,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:42,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:42,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:42,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:42,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:42,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:42,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:42,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:42,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:42,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:42,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:42,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:42,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:42,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:42,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:42,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:42,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:42,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:42,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:42,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:42,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:42,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:42,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:42,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:42,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:42,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:42,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:42,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:42,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:42,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:42,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:42,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:42,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:42,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:42,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:42,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:42,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:42,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:42,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:42,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:42,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:42,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:42,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:42,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:42,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:42,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:42,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:42,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:07:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:42,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:42,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:42,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:07:42,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:42,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:07:42,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:42,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:42,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:42,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:42,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:42,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 19:07:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:42,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:42,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:42,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:07:42,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:42,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 19:07:42,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:42,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:42,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 19:07:42,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:42,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:42,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:42,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:42,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:42,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:07:42,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:42,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 19:07:42,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:42,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:42,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:07:42,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:42,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:42,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:42,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:42,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:42,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:42,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:42,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 19:07:42,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:42,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:42,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:07:42,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:07:42,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:42,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:42,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:42,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:42,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:42,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:42,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:07:42,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:42,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:07:42,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:42,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:42,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:42,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:42,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:42,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:42,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:42,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:42,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:42,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:42,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:42,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:07:42,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:42,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:42,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 19:07:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:42,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:42,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:42,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:42,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:42,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:07:42,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:42,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:42,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:42,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:42,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:42,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 19:07:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:42,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:42,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:42,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:42,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:42,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:42,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:42,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:42,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:42,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:42,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:42,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:42,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1954877721] [2020-09-24 19:07:42,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:42,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:07:42,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847984029] [2020-09-24 19:07:42,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:07:42,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:42,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:07:42,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:07:42,907 INFO L87 Difference]: Start difference. First operand 601 states and 651 transitions. Second operand 10 states. [2020-09-24 19:07:44,144 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:44,449 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:07:44,765 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:45,091 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:07:45,386 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:46,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:46,813 INFO L93 Difference]: Finished difference Result 1276 states and 1485 transitions. [2020-09-24 19:07:46,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 19:07:46,814 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 201 [2020-09-24 19:07:46,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:46,819 INFO L225 Difference]: With dead ends: 1276 [2020-09-24 19:07:46,819 INFO L226 Difference]: Without dead ends: 790 [2020-09-24 19:07:46,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 19:07:46,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2020-09-24 19:07:46,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 613. [2020-09-24 19:07:46,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-09-24 19:07:46,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 663 transitions. [2020-09-24 19:07:46,915 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 663 transitions. Word has length 201 [2020-09-24 19:07:46,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:46,916 INFO L479 AbstractCegarLoop]: Abstraction has 613 states and 663 transitions. [2020-09-24 19:07:46,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:07:46,916 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 663 transitions. [2020-09-24 19:07:46,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-24 19:07:46,919 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:46,919 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:46,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:07:46,920 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:46,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:46,920 INFO L82 PathProgramCache]: Analyzing trace with hash -610195808, now seen corresponding path program 1 times [2020-09-24 19:07:46,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:46,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921155475] [2020-09-24 19:07:46,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:47,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:47,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:47,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:47,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-24 19:07:47,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:47,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1023 [2020-09-24 19:07:47,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:47,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:07:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 19:07:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-24 19:07:47,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:48,278 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:48,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:48,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:48,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:48,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:07:48,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:48,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 19:07:48,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:48,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:48,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:48,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:48,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:48,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:07:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:48,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:48,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:48,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:48,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:48,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:48,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:48,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:48,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:48,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:48,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:48,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:07:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:48,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:48,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:48,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:48,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:48,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:48,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:48,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:48,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:48,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:48,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:48,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:07:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:48,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:48,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:48,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:48,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:48,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:48,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:48,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:48,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:48,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:48,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:48,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:07:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:48,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:48,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:48,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:48,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:48,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:07:48,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:48,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:48,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:48,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:48,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:48,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:07:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:48,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:48,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:48,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:48,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:48,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:48,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:07:48,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:48,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 19:07:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:48,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:48,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:48,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:07:48,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:48,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:07:48,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:48,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:48,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:48,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:07:48,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:48,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 19:07:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:48,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:48,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:48,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:07:48,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:48,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 19:07:48,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:48,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:48,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:48,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 19:07:48,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:48,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:48,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:48,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:48,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:07:48,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:48,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:07:48,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:48,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:48,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:48,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:48,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:48,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:07:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:48,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:48,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:48,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:07:48,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:48,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:07:48,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:48,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:48,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:48,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:48,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:48,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:07:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:48,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:48,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:48,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:07:48,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:48,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:48,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:48,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:48,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:48,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:48,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:48,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:07:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:48,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:48,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:48,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:07:48,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:48,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:48,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:48,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:48,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:48,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:48,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:48,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 19:07:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:48,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:48,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:48,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:48,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:48,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:48,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:48,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:48,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:48,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:48,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:48,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 19:07:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:48,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:48,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:48,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:48,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:48,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:48,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:48,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:48,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:48,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:48,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:48,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:48,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921155475] [2020-09-24 19:07:48,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:48,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:07:48,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860396373] [2020-09-24 19:07:48,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:07:48,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:48,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:07:48,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:07:48,634 INFO L87 Difference]: Start difference. First operand 613 states and 663 transitions. Second operand 7 states. [2020-09-24 19:07:49,198 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189