/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_spec3_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:19:07,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:19:07,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:19:07,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:19:07,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:19:07,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:19:07,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:19:07,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:19:07,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:19:07,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:19:07,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:19:07,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:19:07,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:19:07,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:19:07,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:19:07,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:19:07,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:19:07,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:19:07,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:19:07,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:19:07,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:19:07,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:19:07,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:19:07,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:19:07,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:19:07,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:19:07,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:19:07,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:19:07,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:19:07,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:19:07,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:19:07,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:19:07,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:19:07,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:19:07,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:19:07,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:19:07,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:19:07,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:19:07,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:19:07,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:19:07,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:19:07,984 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 14:19:08,018 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:19:08,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:19:08,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:19:08,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:19:08,020 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:19:08,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:19:08,021 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:19:08,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:19:08,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:19:08,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:19:08,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:19:08,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:19:08,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:19:08,022 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:19:08,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:19:08,022 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:19:08,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:19:08,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:19:08,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:19:08,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:19:08,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:19:08,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:19:08,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:19:08,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:19:08,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:19:08,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:19:08,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:19:08,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:19:08,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:19:08,025 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 14:19:08,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:19:08,563 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:19:08,568 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:19:08,569 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:19:08,570 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:19:08,571 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c [2020-09-25 14:19:08,668 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/37e281483/1b199fd01652486c824d96c44214a4b2/FLAG50122cd96 [2020-09-25 14:19:09,294 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:19:09,295 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c [2020-09-25 14:19:09,310 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/37e281483/1b199fd01652486c824d96c44214a4b2/FLAG50122cd96 [2020-09-25 14:19:09,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/37e281483/1b199fd01652486c824d96c44214a4b2 [2020-09-25 14:19:09,571 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:19:09,578 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:19:09,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:19:09,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:19:09,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:19:09,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:19:09" (1/1) ... [2020-09-25 14:19:09,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e33fb78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:09, skipping insertion in model container [2020-09-25 14:19:09,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:19:09" (1/1) ... [2020-09-25 14:19:09,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:19:09,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:19:10,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:19:10,108 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:19:10,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:19:10,334 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:19:10,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:10 WrapperNode [2020-09-25 14:19:10,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:19:10,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:19:10,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:19:10,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:19:10,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:10" (1/1) ... [2020-09-25 14:19:10,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:10" (1/1) ... [2020-09-25 14:19:10,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:10" (1/1) ... [2020-09-25 14:19:10,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:10" (1/1) ... [2020-09-25 14:19:10,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:10" (1/1) ... [2020-09-25 14:19:10,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:10" (1/1) ... [2020-09-25 14:19:10,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:10" (1/1) ... [2020-09-25 14:19:10,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:19:10,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:19:10,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:19:10,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:19:10,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:19:10,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:19:10,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:19:10,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:19:10,511 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:19:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:19:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:19:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:19:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:19:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:19:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:19:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:19:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:19:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:19:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:19:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:19:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:19:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:19:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 14:19:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 14:19:10,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:19:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:19:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:19:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:19:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:19:10,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:19:10,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 14:19:10,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:19:10,517 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:19:10,517 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:19:10,517 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:19:10,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:19:10,518 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:19:10,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:19:10,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 14:19:10,518 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:19:10,518 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:19:10,519 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:19:10,519 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:19:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:19:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:19:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:19:10,519 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:19:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:19:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 14:19:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:19:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:19:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:19:10,520 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:19:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:19:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:19:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:19:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:19:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:19:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:19:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:19:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:19:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:19:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:19:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 14:19:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:19:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:19:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:19:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 14:19:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:19:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:19:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 14:19:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:19:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:19:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:19:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:19:10,524 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:19:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:19:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:19:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:19:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:19:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:19:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:19:10,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:19:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:19:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:19:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:19:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:19:10,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:19:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:19:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:19:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:19:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:19:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:19:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:19:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:19:11,711 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:19:11,711 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:19:11,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:19:11 BoogieIcfgContainer [2020-09-25 14:19:11,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:19:11,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:19:11,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:19:11,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:19:11,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:19:09" (1/3) ... [2020-09-25 14:19:11,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d4d423b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:19:11, skipping insertion in model container [2020-09-25 14:19:11,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:19:10" (2/3) ... [2020-09-25 14:19:11,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d4d423b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:19:11, skipping insertion in model container [2020-09-25 14:19:11,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:19:11" (3/3) ... [2020-09-25 14:19:11,741 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product34.cil.c [2020-09-25 14:19:11,754 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:19:11,768 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:19:11,793 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:19:11,824 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:19:11,824 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:19:11,825 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:19:11,825 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:19:11,825 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:19:11,825 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:19:11,825 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:19:11,825 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:19:11,855 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states. [2020-09-25 14:19:11,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 14:19:11,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:11,875 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] [2020-09-25 14:19:11,875 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:11,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:11,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1309084967, now seen corresponding path program 1 times [2020-09-25 14:19:11,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:11,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905927601] [2020-09-25 14:19:11,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:12,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:12,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:14,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:17,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:17,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 14:19:17,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:19:17,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:19:17,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:17,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:17,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:19:17,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:19:17,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 14:19:17,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 14:19:17,881 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:19:17,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:19:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:17,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:18,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:18,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:19:18,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:18,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-09-25 14:19:18,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:18,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:18,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:18,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:18,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:19:18,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:18,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:19:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:18,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:18,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:18,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:18,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:18,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:19:18,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:18,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:18,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:18,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:18,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:18,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:18,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:19:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:18,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:18,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:18,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:18,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:18,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:18,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:18,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:18,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:18,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:18,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:19:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:18,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:18,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:18,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:18,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:18,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:19:18,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:18,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:18,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:18,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:18,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:18,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:18,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:19:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:18,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:18,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:18,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:18,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:18,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:19:18,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:18,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:18,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:18,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:18,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:18,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:18,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 14:19:18,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:18,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:18,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:18,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:18,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:18,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:19:18,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:18,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:18,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:18,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:18,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:18,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:19:18,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 14:19:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:18,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:18,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:18,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:18,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:18,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:18,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:18,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:18,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:18,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 14:19:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:18,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:18,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:18,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:18,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:18,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:18,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:18,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:18,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:18,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:18,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:18,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:18,516 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 14:19:18,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1905927601] [2020-09-25 14:19:18,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:19:18,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:19:18,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469122930] [2020-09-25 14:19:18,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:19:18,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:19:18,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:19:18,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:19:18,553 INFO L87 Difference]: Start difference. First operand 299 states. Second operand 4 states. [2020-09-25 14:19:19,285 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:19:20,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:19:20,386 INFO L93 Difference]: Finished difference Result 450 states and 535 transitions. [2020-09-25 14:19:20,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:19:20,388 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-25 14:19:20,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:19:20,409 INFO L225 Difference]: With dead ends: 450 [2020-09-25 14:19:20,410 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 14:19:20,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:19:20,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 14:19:20,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 242. [2020-09-25 14:19:20,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-09-25 14:19:20,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 260 transitions. [2020-09-25 14:19:20,580 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 260 transitions. Word has length 153 [2020-09-25 14:19:20,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:19:20,585 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 260 transitions. [2020-09-25 14:19:20,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:19:20,586 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 260 transitions. [2020-09-25 14:19:20,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 14:19:20,601 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:20,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:19:20,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:19:20,602 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:20,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:20,603 INFO L82 PathProgramCache]: Analyzing trace with hash 471162040, now seen corresponding path program 1 times [2020-09-25 14:19:20,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:20,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226692234] [2020-09-25 14:19:20,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:20,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:20,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:21,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:24,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:25,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:25,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:25,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 14:19:25,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:19:25,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 14:19:25,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:25,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:25,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:19:25,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 14:19:25,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 14:19:25,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:26,030 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:19:26,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:19:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:26,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:26,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:26,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:19:26,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:26,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-25 14:19:26,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:26,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:19:26,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:26,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:19:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:26,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:26,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:26,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:26,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:26,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:26,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:26,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:26,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:26,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:26,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:26,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:26,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:19:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:26,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:26,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:26,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:26,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:26,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:26,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:26,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:26,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:26,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:26,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:26,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:26,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:19:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:26,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:26,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:26,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:26,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:26,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:19:26,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:26,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:26,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:26,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:26,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:26,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:26,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:19:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:26,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:26,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:26,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:26,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:26,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:26,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:26,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:26,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:26,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:26,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:26,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:26,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:19:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:26,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:26,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:26,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:19:26,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:26,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:19:26,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:26,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:26,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:19:26,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:19:26,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:19:26,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:26,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:19:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:26,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:26,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:26,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:26,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:26,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:19:26,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:26,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:26,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:26,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:26,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:26,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:26,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:19:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:26,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:26,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:26,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:26,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:26,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:26,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:26,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:26,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:26,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:26,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:26,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:26,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 14:19:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:26,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:26,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:26,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:26,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:26,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:26,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:26,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:26,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:26,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:26,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:26,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:26,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 14:19:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:26,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:26,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:26,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:26,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:26,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:26,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:26,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:26,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:26,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:26,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:26,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:26,464 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 14:19:26,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226692234] [2020-09-25 14:19:26,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:19:26,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:19:26,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036690493] [2020-09-25 14:19:26,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:19:26,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:19:26,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:19:26,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:19:26,470 INFO L87 Difference]: Start difference. First operand 242 states and 260 transitions. Second operand 6 states. [2020-09-25 14:19:27,001 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:19:28,473 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:19:29,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:19:29,523 INFO L93 Difference]: Finished difference Result 586 states and 691 transitions. [2020-09-25 14:19:29,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:19:29,523 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 14:19:29,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:19:29,529 INFO L225 Difference]: With dead ends: 586 [2020-09-25 14:19:29,529 INFO L226 Difference]: Without dead ends: 454 [2020-09-25 14:19:29,532 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:19:29,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2020-09-25 14:19:29,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 380. [2020-09-25 14:19:29,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-09-25 14:19:29,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 420 transitions. [2020-09-25 14:19:29,605 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 420 transitions. Word has length 162 [2020-09-25 14:19:29,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:19:29,606 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 420 transitions. [2020-09-25 14:19:29,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:19:29,606 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 420 transitions. [2020-09-25 14:19:29,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-25 14:19:29,609 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:29,610 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] [2020-09-25 14:19:29,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:19:29,610 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:29,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:29,611 INFO L82 PathProgramCache]: Analyzing trace with hash 158735571, now seen corresponding path program 1 times [2020-09-25 14:19:29,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:29,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1091974430] [2020-09-25 14:19:29,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:29,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:29,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:29,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:34,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:34,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-09-25 14:19:34,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:19:34,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-25 14:19:34,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:34,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:34,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:19:34,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 14:19:34,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:19:34,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:35,002 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:19:35,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:19:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:19:35,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 14:19:35,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:35,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:35,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:35,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:35,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:19:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:35,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:35,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:35,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:35,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:35,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:35,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:19:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:35,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:19:35,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:35,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:35,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:35,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:19:35,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:19:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:35,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:35,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:35,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:35,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:35,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:35,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:19:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:35,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:19:35,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:35,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:35,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:35,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:19:35,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:19:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 14:19:35,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:19:35,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-25 14:19:35,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:19:35,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 14:19:35,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:19:35,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:35,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:19:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:19:35,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 14:19:35,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:19:35,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 14:19:35,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:19:35,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:35,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:19:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:19:35,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:19:35,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:19:35,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:35,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:35,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:35,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 14:19:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:35,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:19:35,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:35,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 14:19:35,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:35,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:19:35,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 14:19:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:35,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:35,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:35,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:35,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:35,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:35,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 14:19:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:35,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:35,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:35,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:35,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:35,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:19:35,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 14:19:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:35,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:35,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:35,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:35,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:35,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:35,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:35,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:35,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:35,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:35,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:35,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:35,515 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 14:19:35,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1091974430] [2020-09-25 14:19:35,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:19:35,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 14:19:35,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367412200] [2020-09-25 14:19:35,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:19:35,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:19:35,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:19:35,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:19:35,518 INFO L87 Difference]: Start difference. First operand 380 states and 420 transitions. Second operand 8 states. [2020-09-25 14:19:36,971 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:19:37,266 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:19:37,589 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:19:37,919 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:19:38,226 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:19:39,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:19:39,271 INFO L93 Difference]: Finished difference Result 729 states and 862 transitions. [2020-09-25 14:19:39,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:19:39,271 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 186 [2020-09-25 14:19:39,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:19:39,277 INFO L225 Difference]: With dead ends: 729 [2020-09-25 14:19:39,277 INFO L226 Difference]: Without dead ends: 459 [2020-09-25 14:19:39,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:19:39,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2020-09-25 14:19:39,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 386. [2020-09-25 14:19:39,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-09-25 14:19:39,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 426 transitions. [2020-09-25 14:19:39,398 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 426 transitions. Word has length 186 [2020-09-25 14:19:39,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:19:39,398 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 426 transitions. [2020-09-25 14:19:39,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:19:39,399 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 426 transitions. [2020-09-25 14:19:39,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 14:19:39,402 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:39,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:19:39,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:19:39,402 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:39,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:39,403 INFO L82 PathProgramCache]: Analyzing trace with hash -135374382, now seen corresponding path program 1 times [2020-09-25 14:19:39,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:39,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654166391] [2020-09-25 14:19:39,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:39,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:39,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:42,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:42,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-25 14:19:42,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:19:42,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2826 [2020-09-25 14:19:42,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:42,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:42,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:19:42,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:19:42,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-25 14:19:42,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:42,677 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:19:42,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:19:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:42,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:42,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:42,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:19:42,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:42,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-09-25 14:19:42,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:42,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:42,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:42,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:42,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:19:42,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:43,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:19:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:43,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:43,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:43,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:43,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:43,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:19:43,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:43,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:43,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:43,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:43,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:43,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:43,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:19:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:43,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:43,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:43,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:43,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:43,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:43,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:43,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:43,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:43,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:43,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:43,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:43,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:19:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:43,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:43,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:43,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:43,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:43,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:19:43,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:43,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:43,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:43,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:43,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:43,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:43,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:19:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:43,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:43,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:43,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:43,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:43,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:43,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:43,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:43,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:43,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:43,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:19:43,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:43,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 14:19:43,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:43,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:43,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:43,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:19:43,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:43,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:19:43,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:43,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:43,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:43,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:43,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:19:43,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:43,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 14:19:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:43,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:43,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:43,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:43,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 14:19:43,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:19:43,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 14:19:43,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:43,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:43,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:43,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:43,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 14:19:43,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:43,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:19:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:43,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:43,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:43,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:19:43,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:43,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:19:43,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:43,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:43,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:43,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:43,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:43,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:43,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:19:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:43,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:43,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:43,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:19:43,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:43,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:43,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:43,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:43,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:43,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:43,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:43,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:19:43,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 14:19:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:43,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:43,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:43,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:43,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:43,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:43,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:43,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:43,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:43,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:43,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:43,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:43,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 14:19:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:43,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:43,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:43,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:43,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:43,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:19:43,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:43,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:43,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:19:43,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:43,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:43,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:43,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 14:19:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:43,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:43,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:43,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:43,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:43,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:19:43,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:43,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:43,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:19:43,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:43,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:19:43,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:43,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 14:19:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:43,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:43,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:43,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:43,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:43,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:43,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:43,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:43,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:43,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:43,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:43,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:43,364 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 14:19:43,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654166391] [2020-09-25 14:19:43,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:19:43,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 14:19:43,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123142945] [2020-09-25 14:19:43,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:19:43,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:19:43,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:19:43,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:19:43,370 INFO L87 Difference]: Start difference. First operand 386 states and 426 transitions. Second operand 11 states. [2020-09-25 14:19:43,909 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:19:45,738 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:19:46,091 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:19:46,471 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:19:46,808 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:19:47,126 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:19:47,700 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:19:48,064 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:19:48,496 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:19:50,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:19:50,329 INFO L93 Difference]: Finished difference Result 1128 states and 1460 transitions. [2020-09-25 14:19:50,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 14:19:50,330 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-09-25 14:19:50,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:19:50,337 INFO L225 Difference]: With dead ends: 1128 [2020-09-25 14:19:50,337 INFO L226 Difference]: Without dead ends: 809 [2020-09-25 14:19:50,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-09-25 14:19:50,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2020-09-25 14:19:50,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 590. [2020-09-25 14:19:50,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2020-09-25 14:19:50,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 662 transitions. [2020-09-25 14:19:50,431 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 662 transitions. Word has length 199 [2020-09-25 14:19:50,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:19:50,432 INFO L479 AbstractCegarLoop]: Abstraction has 590 states and 662 transitions. [2020-09-25 14:19:50,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:19:50,433 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 662 transitions. [2020-09-25 14:19:50,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-25 14:19:50,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:50,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:19:50,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:19:50,438 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:50,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:50,438 INFO L82 PathProgramCache]: Analyzing trace with hash -321962154, now seen corresponding path program 1 times [2020-09-25 14:19:50,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:50,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973662068] [2020-09-25 14:19:50,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:50,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:51,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:51,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-09-25 14:19:51,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:51,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 856 [2020-09-25 14:19:51,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:51,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:51,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:19:51,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-25 14:19:51,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:19:51,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:19:51,645 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:19:51,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:19:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:51,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:51,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:51,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:19:51,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:51,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 14:19:51,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:51,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:51,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:51,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:51,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:51,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:51,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:19:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:51,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:51,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:51,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:51,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:51,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:51,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:51,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:51,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:51,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:51,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:51,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:19:51,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:19:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:51,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:51,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:51,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:51,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:51,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:19:51,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:51,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:51,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:51,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:51,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:51,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:19:51,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:19:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:51,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:51,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:51,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:51,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:51,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:51,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:51,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:51,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:51,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:51,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:51,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:19:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:51,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:51,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:51,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:51,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:51,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:51,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:51,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:51,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:51,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:51,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:51,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:51,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 14:19:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:51,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:51,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:51,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:19:51,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:51,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:51,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:51,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:51,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:51,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:51,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:51,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:51,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 14:19:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:51,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:51,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:51,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:19:51,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:51,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:19:51,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:51,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:51,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:51,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:51,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:51,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:51,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 14:19:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:51,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:51,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:51,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 14:19:51,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:51,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 14:19:51,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:51,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:51,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:19:51,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 14:19:51,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:19:51,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:51,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:19:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:51,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:51,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:51,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:19:51,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:51,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 14:19:51,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:51,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:19:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:51,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 14:19:51,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:52,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:19:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:52,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:52,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:52,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:19:52,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:52,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:19:52,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:52,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:52,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:52,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:19:52,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:52,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:52,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 14:19:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:52,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:52,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:52,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:19:52,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:52,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:52,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:52,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:52,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 14:19:52,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:52,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:52,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 14:19:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:52,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:52,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:52,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:52,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:52,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:52,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:52,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:52,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:52,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:52,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:52,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:52,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 14:19:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:52,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:52,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:52,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:52,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:52,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:52,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:52,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:52,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:52,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:52,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:52,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:52,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-25 14:19:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:52,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:19:52,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:19:52,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:19:52,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:19:52,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:19:52,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:19:52,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:19:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:19:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:19:52,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:19:52,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:19:52,098 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 14:19:52,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973662068] [2020-09-25 14:19:52,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:19:52,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 14:19:52,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147400153] [2020-09-25 14:19:52,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:19:52,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:19:52,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:19:52,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:19:52,101 INFO L87 Difference]: Start difference. First operand 590 states and 662 transitions. Second operand 11 states. [2020-09-25 14:19:53,428 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:19:53,754 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:19:54,071 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:19:54,397 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:19:54,733 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:19:55,045 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 14:19:56,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:19:56,429 INFO L93 Difference]: Finished difference Result 1430 states and 1756 transitions. [2020-09-25 14:19:56,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 14:19:56,430 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 204 [2020-09-25 14:19:56,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:19:56,437 INFO L225 Difference]: With dead ends: 1430 [2020-09-25 14:19:56,437 INFO L226 Difference]: Without dead ends: 950 [2020-09-25 14:19:56,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-09-25 14:19:56,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2020-09-25 14:19:56,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 598. [2020-09-25 14:19:56,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2020-09-25 14:19:56,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 670 transitions. [2020-09-25 14:19:56,533 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 670 transitions. Word has length 204 [2020-09-25 14:19:56,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:19:56,534 INFO L479 AbstractCegarLoop]: Abstraction has 598 states and 670 transitions. [2020-09-25 14:19:56,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:19:56,534 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 670 transitions. [2020-09-25 14:19:56,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-25 14:19:56,537 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:19:56,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:19:56,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 14:19:56,538 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:19:56,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:19:56,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1295053750, now seen corresponding path program 1 times [2020-09-25 14:19:56,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:19:56,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812681833] [2020-09-25 14:19:56,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:19:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:19:56,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking...