/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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_spec1_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:13:00,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:13:00,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:13:00,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:13:00,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:13:00,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:13:00,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:13:00,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:13:00,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:13:00,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:13:00,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:13:00,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:13:00,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:13:00,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:13:00,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:13:00,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:13:00,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:13:00,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:13:00,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:13:00,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:13:00,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:13:00,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:13:00,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:13:00,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:13:00,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:13:00,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:13:00,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:13:00,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:13:00,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:13:00,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:13:00,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:13:00,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:13:00,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:13:00,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:13:00,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:13:00,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:13:00,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:13:00,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:13:00,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:13:00,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:13:00,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:13:00,837 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:13:00,892 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:13:00,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:13:00,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:13:00,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:13:00,895 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:13:00,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:13:00,896 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:13:00,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:13:00,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:13:00,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:13:00,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:13:00,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:13:00,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:13:00,899 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:13:00,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:13:00,899 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:13:00,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:13:00,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:13:00,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:13:00,900 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:13:00,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:13:00,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:13:00,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:13:00,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:13:00,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:13:00,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:13:00,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:13:00,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:13:00,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:13:00,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:13:01,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:13:01,395 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:13:01,400 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:13:01,402 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:13:01,402 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:13:01,403 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-09-25 14:13:01,482 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d39146b2/d9235e4d90784353b0d69ac9ae8e80c0/FLAG7ef9626d7 [2020-09-25 14:13:02,082 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:13:02,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-09-25 14:13:02,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d39146b2/d9235e4d90784353b0d69ac9ae8e80c0/FLAG7ef9626d7 [2020-09-25 14:13:02,372 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8d39146b2/d9235e4d90784353b0d69ac9ae8e80c0 [2020-09-25 14:13:02,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:13:02,390 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:13:02,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:13:02,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:13:02,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:13:02,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:13:02" (1/1) ... [2020-09-25 14:13:02,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54de61ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:02, skipping insertion in model container [2020-09-25 14:13:02,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:13:02" (1/1) ... [2020-09-25 14:13:02,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:13:02,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:13:02,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:13:03,016 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:13:03,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:13:03,140 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:13:03,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:03 WrapperNode [2020-09-25 14:13:03,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:13:03,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:13:03,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:13:03,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:13:03,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:03" (1/1) ... [2020-09-25 14:13:03,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:03" (1/1) ... [2020-09-25 14:13:03,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:03" (1/1) ... [2020-09-25 14:13:03,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:03" (1/1) ... [2020-09-25 14:13:03,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:03" (1/1) ... [2020-09-25 14:13:03,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:03" (1/1) ... [2020-09-25 14:13:03,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:03" (1/1) ... [2020-09-25 14:13:03,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:13:03,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:13:03,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:13:03,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:13:03,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:13:03,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:13:03,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:13:03,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:13:03,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:13:03,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:13:03,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:13:03,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:13:03,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:13:03,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:13:03,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:13:03,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:13:03,344 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:13:03,345 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:13:03,345 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:13:03,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:13:03,346 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:13:03,346 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:13:03,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 14:13:03,347 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:13:03,347 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:13:03,347 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:13:03,348 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 14:13:03,348 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:13:03,348 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:13:03,348 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:13:03,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:13:03,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:13:03,349 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:13:03,350 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 14:13:03,350 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:13:03,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:13:03,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:13:03,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:13:03,350 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:13:03,350 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:13:03,351 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:13:03,351 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:13:03,351 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:13:03,351 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:13:03,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:13:03,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:13:03,353 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:13:03,354 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:13:03,354 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:13:03,354 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:13:03,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:13:03,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:13:03,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:13:03,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:13:03,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:13:03,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:13:03,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:13:03,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:13:03,357 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:13:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:13:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:13:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:13:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:13:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:13:03,358 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:13:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:13:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:13:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:13:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:13:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:13:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:13:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:13:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:13:03,360 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 14:13:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:13:03,361 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:13:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:13:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:13:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:13:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:13:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:13:03,363 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:13:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:13:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 14:13:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 14:13:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:13:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:13:03,364 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:13:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:13:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:13:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:13:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:13:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:13:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:13:03,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:13:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:13:03,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:13:04,583 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:13:04,584 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:13:04,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:13:04 BoogieIcfgContainer [2020-09-25 14:13:04,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:13:04,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:13:04,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:13:04,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:13:04,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:13:02" (1/3) ... [2020-09-25 14:13:04,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2badb987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:13:04, skipping insertion in model container [2020-09-25 14:13:04,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:13:03" (2/3) ... [2020-09-25 14:13:04,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2badb987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:13:04, skipping insertion in model container [2020-09-25 14:13:04,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:13:04" (3/3) ... [2020-09-25 14:13:04,603 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2020-09-25 14:13:04,617 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:13:04,630 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:13:04,656 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:13:04,688 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:13:04,689 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:13:04,689 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:13:04,689 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:13:04,689 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:13:04,689 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:13:04,689 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:13:04,690 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:13:04,719 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states. [2020-09-25 14:13:04,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:13:04,738 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:04,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:13:04,740 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:04,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:04,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1299916906, now seen corresponding path program 1 times [2020-09-25 14:13:04,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:04,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1084837789] [2020-09-25 14:13:04,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:05,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:05,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:06,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:07,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:10,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:10,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:13:10,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:13:10,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 14:13:10,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:10,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:10,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:13:10,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:13:10,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 14:13:10,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 14:13:10,838 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:13:10,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:13:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:10,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:11,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:11,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:13:11,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:11,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 432 [2020-09-25 14:13:11,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:11,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:11,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:13:11,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:13:11,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:13:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:11,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:11,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:11,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:11,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:11,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:13:11,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:11,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:11,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:11,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:11,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:11,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:11,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:13:11,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:11,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:11,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:11,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:11,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:11,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:13:11,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:11,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:11,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:11,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:11,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:11,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:11,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:13:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:11,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:11,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:11,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:11,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:11,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:13:11,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:11,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:11,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:11,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:11,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:11,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:11,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:13:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:11,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:11,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:11,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:11,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:11,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:13:11,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:11,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:11,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:11,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:11,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:11,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:11,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:13:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:11,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:11,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:11,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:11,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:11,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:13:11,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:11,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:11,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:11,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:11,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:11,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:11,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:13:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:11,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:11,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:11,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:11,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:11,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:11,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:11,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:11,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:11,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:11,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:11,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:11,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:13:11,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1084837789] [2020-09-25 14:13:11,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:13:11,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:13:11,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171855090] [2020-09-25 14:13:11,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:13:11,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:13:11,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:13:11,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:13:11,659 INFO L87 Difference]: Start difference. First operand 307 states. Second operand 4 states. [2020-09-25 14:13:12,311 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:13:14,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:13:14,577 INFO L93 Difference]: Finished difference Result 659 states and 805 transitions. [2020-09-25 14:13:14,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:13:14,581 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 14:13:14,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:13:14,604 INFO L225 Difference]: With dead ends: 659 [2020-09-25 14:13:14,604 INFO L226 Difference]: Without dead ends: 463 [2020-09-25 14:13:14,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:13:14,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-09-25 14:13:14,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 396. [2020-09-25 14:13:14,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2020-09-25 14:13:14,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 445 transitions. [2020-09-25 14:13:14,828 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 445 transitions. Word has length 142 [2020-09-25 14:13:14,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:13:14,830 INFO L479 AbstractCegarLoop]: Abstraction has 396 states and 445 transitions. [2020-09-25 14:13:14,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:13:14,830 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 445 transitions. [2020-09-25 14:13:14,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 14:13:14,836 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:14,837 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] [2020-09-25 14:13:14,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:13:14,837 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:14,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:14,838 INFO L82 PathProgramCache]: Analyzing trace with hash 627357021, now seen corresponding path program 1 times [2020-09-25 14:13:14,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:14,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112552673] [2020-09-25 14:13:14,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:14,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:15,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:15,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:16,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:17,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:17,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:18,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:19,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:19,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 14:13:19,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 14:13:19,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 14:13:19,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:19,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:19,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:13:19,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:13:19,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 14:13:19,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:20,305 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:13:20,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:13:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:20,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:20,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:20,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:13:20,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:20,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-09-25 14:13:20,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:20,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:20,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:20,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:20,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:13:20,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:20,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:13:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:20,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:20,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:20,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:20,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:20,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:20,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:20,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:20,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:20,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:20,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:20,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:20,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:13:20,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:20,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:20,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:20,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:20,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:20,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:20,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:20,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:20,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:20,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:20,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:20,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:20,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:13:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:20,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:20,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:20,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:20,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:20,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:13:20,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:20,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:20,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:20,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:20,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:20,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:20,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:13:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:20,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:20,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:20,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:20,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:20,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:20,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:20,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:20,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:20,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:20,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:20,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:20,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 14:13:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:20,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:20,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:20,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:20,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 14:13:20,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:13:20,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 14:13:20,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:20,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:20,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:20,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:20,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 14:13:20,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:20,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:13:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:20,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:20,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:20,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:13:20,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:20,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:20,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:20,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:20,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:20,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:20,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:20,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:20,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:13:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:20,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:20,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:20,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:20,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:20,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:20,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:20,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:20,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:20,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:20,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:20,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:20,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 14:13:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:20,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:20,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:20,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:20,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:20,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:13:20,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:20,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:20,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:13:20,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:20,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:20,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:20,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 14:13:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:20,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:20,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:20,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:20,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:20,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:13:20,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:20,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:20,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:20,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:20,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:20,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:20,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:13:20,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112552673] [2020-09-25 14:13:20,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:13:20,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:13:20,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690358013] [2020-09-25 14:13:20,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:13:20,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:13:20,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:13:20,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:13:20,894 INFO L87 Difference]: Start difference. First operand 396 states and 445 transitions. Second operand 9 states. [2020-09-25 14:13:21,438 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:13:22,790 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 14:13:23,431 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 14:13:24,393 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:13:24,793 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:13:25,268 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:25,631 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:13:25,953 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:26,453 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:13:27,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:13:27,883 INFO L93 Difference]: Finished difference Result 1178 states and 1485 transitions. [2020-09-25 14:13:27,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 14:13:27,885 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 165 [2020-09-25 14:13:27,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:13:27,897 INFO L225 Difference]: With dead ends: 1178 [2020-09-25 14:13:27,897 INFO L226 Difference]: Without dead ends: 845 [2020-09-25 14:13:27,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2020-09-25 14:13:27,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2020-09-25 14:13:28,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 635. [2020-09-25 14:13:28,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2020-09-25 14:13:28,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 724 transitions. [2020-09-25 14:13:28,054 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 724 transitions. Word has length 165 [2020-09-25 14:13:28,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:13:28,055 INFO L479 AbstractCegarLoop]: Abstraction has 635 states and 724 transitions. [2020-09-25 14:13:28,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:13:28,055 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 724 transitions. [2020-09-25 14:13:28,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 14:13:28,060 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:28,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:13:28,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:13:28,061 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:28,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:28,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1527739392, now seen corresponding path program 1 times [2020-09-25 14:13:28,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:28,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112415205] [2020-09-25 14:13:28,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:28,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:28,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:29,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:31,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:31,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 14:13:31,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:13:31,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3259 [2020-09-25 14:13:31,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:31,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:31,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:13:31,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 14:13:31,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 14:13:31,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:31,774 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:13:31,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:13:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:31,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:13:32,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:32,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-09-25 14:13:32,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:32,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:32,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:13:32,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:13:32,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:13:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:32,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:32,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:13:32,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:32,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:32,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:32,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:32,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:13:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:32,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:32,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:32,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:32,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:32,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:32,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:13:32,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:13:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:32,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:32,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 14:13:32,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:32,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:32,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:32,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:32,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:13:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:32,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:32,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:32,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:32,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:32,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:13:32,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:32,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:13:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:13:32,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:32,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:13:32,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:13:32,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:32,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 14:13:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:13:32,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:13:32,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:13:32,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:13:32,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:13:32,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:13:32,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:32,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 14:13:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:32,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:32,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:32,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:13:32,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:32,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:32,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:13:32,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 14:13:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:32,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:32,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:32,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:32,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:32,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:13:32,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:32,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:32,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:13:32,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:32,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:32,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:32,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:13:32,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112415205] [2020-09-25 14:13:32,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:13:32,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 14:13:32,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076526841] [2020-09-25 14:13:32,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:13:32,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:13:32,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:13:32,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:13:32,460 INFO L87 Difference]: Start difference. First operand 635 states and 724 transitions. Second operand 11 states. [2020-09-25 14:13:33,185 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:13:34,643 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:13:34,962 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:13:35,310 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:13:35,664 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:13:35,952 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:13:36,531 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:13:36,867 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:37,277 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:13:39,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:13:39,077 INFO L93 Difference]: Finished difference Result 1854 states and 2392 transitions. [2020-09-25 14:13:39,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 14:13:39,078 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 166 [2020-09-25 14:13:39,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:13:39,088 INFO L225 Difference]: With dead ends: 1854 [2020-09-25 14:13:39,089 INFO L226 Difference]: Without dead ends: 1329 [2020-09-25 14:13:39,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=185, Invalid=465, Unknown=0, NotChecked=0, Total=650 [2020-09-25 14:13:39,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2020-09-25 14:13:39,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 985. [2020-09-25 14:13:39,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 985 states. [2020-09-25 14:13:39,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1170 transitions. [2020-09-25 14:13:39,252 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1170 transitions. Word has length 166 [2020-09-25 14:13:39,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:13:39,253 INFO L479 AbstractCegarLoop]: Abstraction has 985 states and 1170 transitions. [2020-09-25 14:13:39,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:13:39,253 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1170 transitions. [2020-09-25 14:13:39,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 14:13:39,257 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:39,257 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] [2020-09-25 14:13:39,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:13:39,258 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:39,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:39,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1570026786, now seen corresponding path program 1 times [2020-09-25 14:13:39,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:39,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664569971] [2020-09-25 14:13:39,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:39,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-25 14:13:40,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 813 [2020-09-25 14:13:40,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:13:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 184 [2020-09-25 14:13:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:13:40,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:40,420 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:13:40,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:13:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:13:40,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 14:13:40,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:40,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:40,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:40,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:40,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:13:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:40,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:40,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:40,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:40,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:40,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:13:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:40,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:40,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:40,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:40,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:40,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:40,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:13:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:40,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:40,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:40,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:40,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:40,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:40,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:13:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:40,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:40,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:40,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:40,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:40,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:13:40,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:13:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:13:40,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:40,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:40,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:40,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:40,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:40,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 14:13:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 14:13:40,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 14:13:40,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:13:40,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 14:13:40,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:13:40,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:13:40,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:13:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 14:13:40,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 14:13:40,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:13:40,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 14:13:40,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:13:40,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:40,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:13:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:13:40,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 14:13:40,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:13:40,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:40,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 14:13:40,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:40,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:13:40,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:13:40,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:13:40,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:40,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:40,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:40,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:40,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 14:13:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:13:40,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:40,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:40,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 14:13:40,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:40,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:40,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-25 14:13:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:40,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:40,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:40,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:40,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:40,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:13:40,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 14:13:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:40,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:40,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:40,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:40,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:40,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:40,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:40,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:40,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:40,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:40,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:40,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:40,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:13:40,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664569971] [2020-09-25 14:13:40,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:13:40,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 14:13:40,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276018248] [2020-09-25 14:13:40,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:13:40,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:13:40,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:13:40,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:13:40,932 INFO L87 Difference]: Start difference. First operand 985 states and 1170 transitions. Second operand 10 states. [2020-09-25 14:13:42,399 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:42,725 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:13:43,084 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 14:13:43,417 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:13:43,757 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:13:44,070 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:13:45,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:13:45,480 INFO L93 Difference]: Finished difference Result 2220 states and 2817 transitions. [2020-09-25 14:13:45,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 14:13:45,481 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2020-09-25 14:13:45,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:13:45,491 INFO L225 Difference]: With dead ends: 2220 [2020-09-25 14:13:45,492 INFO L226 Difference]: Without dead ends: 1345 [2020-09-25 14:13:45,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 14:13:45,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2020-09-25 14:13:45,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1017. [2020-09-25 14:13:45,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1017 states. [2020-09-25 14:13:45,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1202 transitions. [2020-09-25 14:13:45,647 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1202 transitions. Word has length 195 [2020-09-25 14:13:45,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:13:45,649 INFO L479 AbstractCegarLoop]: Abstraction has 1017 states and 1202 transitions. [2020-09-25 14:13:45,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:13:45,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1202 transitions. [2020-09-25 14:13:45,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 14:13:45,652 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:13:45,653 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] [2020-09-25 14:13:45,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:13:45,653 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:13:45,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:13:45,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1751070334, now seen corresponding path program 1 times [2020-09-25 14:13:45,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:13:45,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2084967847] [2020-09-25 14:13:45,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:13:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:45,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:46,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:46,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-25 14:13:46,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:46,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 720 [2020-09-25 14:13:46,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:46,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:46,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:13:46,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-09-25 14:13:46,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:13:46,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:46,744 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:13:46,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:13:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:46,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:46,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:46,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:13:46,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:46,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 14:13:46,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:46,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:46,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:46,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:46,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:46,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:46,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:13:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:46,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:46,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:46,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:46,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:46,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:46,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:46,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:46,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:46,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:46,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:46,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:46,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:13:46,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:46,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:46,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:46,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:46,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:46,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:46,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:46,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:46,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:46,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:46,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:46,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:46,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:13:46,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:46,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:46,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:46,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:46,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:46,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:46,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:46,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:46,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:46,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:46,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:46,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:46,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:13:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:46,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:46,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:46,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:13:46,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:46,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:46,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:46,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:46,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:46,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:46,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:46,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:46,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:13:46,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:46,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:46,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:46,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:13:46,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:46,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:13:46,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:46,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:46,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:46,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:46,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:46,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:46,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 14:13:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:46,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:47,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:47,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 14:13:47,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:47,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 14:13:47,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:47,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:47,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:13:47,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 14:13:47,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:13:47,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:47,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:13:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:47,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:47,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:47,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 14:13:47,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:47,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 14:13:47,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:47,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:47,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:13:47,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 14:13:47,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:13:47,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:47,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:13:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:47,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:47,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:47,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:13:47,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:47,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 14:13:47,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:47,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:47,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:13:47,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:13:47,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:13:47,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:47,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:13:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:47,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:47,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:47,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:13:47,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:47,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:13:47,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:47,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:47,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:13:47,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:13:47,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:13:47,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:47,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 14:13:47,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:47,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:47,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:47,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:13:47,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:47,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:47,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:47,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:47,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:47,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 14:13:47,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:47,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:13:47,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-25 14:13:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:47,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:47,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:47,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:47,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:47,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:13:47,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:47,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:47,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:47,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:47,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:47,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:47,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 14:13:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:13:47,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:13:47,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:13:47,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:13:47,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:13:47,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:13:47,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:13:47,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:13:47,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:13:47,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:13:47,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:13:47,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:13:47,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:13:47,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2084967847] [2020-09-25 14:13:47,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:13:47,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:13:47,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199341269] [2020-09-25 14:13:47,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:13:47,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:13:47,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:13:47,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:13:47,326 INFO L87 Difference]: Start difference. First operand 1017 states and 1202 transitions. Second operand 9 states. [2020-09-25 14:13:48,633 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:48,888 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:13:49,204 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:13:49,548 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:13:49,846 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188